八年级下册期中试卷啊!!紧急!!大哥大姐帮帮我~~
一、单项选择题(每题只有一个答案符合题意,请把正确答案的序号填入括号内,每题3分,共30分)
1.图1中,表1,表2是两只电表,表1.表2应分别是( )
A.电流表、电压表
B.电流表、电流表
C.电压表、电流表
D.电压表、电压表
2.图2中,L1和L2是两只完全相同的灯泡,开关S闭合后电压表V1的示数为4V,电压表V2和V3的示数应分别为( )
A.4V、0V
B.4V、8V
C.4V、4V
D.以上都不对
3.电阻是导体对电流的阻碍作用,所以( )
A.有电流通过导体就有电阻,没有电流通过导体就没有电阻
B.通过导体的电流强度逐渐增大,则导体的电阻也逐渐增大
C.导体电阻是导体本身的性质,不管有没有电流通过,导体的电阻是一定的
D.导体的电阻只与导体的长度和横截面积有关
4.根据欧姆定律 I=U/R,下列哪种说法是正确的( )
A.通过导体的电流越大,这段导体的电阻就越小
B.导体两端的电压越大,这段导体的电阻就越大
C.导体的电阻与电压成正比,与电流成反比
D.导体两端的电压越大,这段导体中电流就越大
5.图3中电压表测量的是( )
A.灯L1两端的电压
B.灯L2两端的电压
C.电源的电压
D.灯L1和L2的总电压
6.某同学观察两只额定电压相同但额定功字样模糊不清的白炽电灯,发现甲灯灯丝比较粗短,乙灯灯丝比较细长,则这两只灯泡的额定功率( )
A.甲灯大些
B.乙灯大些
C.一样大
D.条件不足无法比较
7.有三盏灯,L1“PZ6—6”L2“PZ6—12”L3“PZ12—12”,串联在6V的电路里,实际功率由大到小的顺序是( )
A.L1,L2,L3
B.L2,L3,L1
C.L3,L1,L2
D.无法确定
8.两电阻R1=R2=10Ω,串联在电路中通电时间为t,产生的热量为Q。若将它们并联起来接入电压为原来一半的电路上,通电时间仍为t,产生的热量为Q’,那么Q:Q’为( )
A.1:1
B.1:2
C.1:3
D.1:4
9.一只灯泡(其电阻不随温度变化)直接接在电源上,消耗的功率为100W,当它通过很长的输电线接到该电源上为一建筑工地照明时,则( )
A.灯泡的实际功率仍为100W
B.灯泡与输电线上消耗的功率之和为100W
C.灯泡与输电线上消耗的功率之和大于100W
D.灯泡与输电线上消耗的功率之和小于100W
10.一只家用电能表标有“1500r/kW·h”的字样,今若让一台录音机工作,测得电能表旋转1r的时间恰好为100s,则这台录音机的功率为( )
A.15W
B.24W
C.41.7W
D.66.7W
二、多项选择题(每题至少有二个答案符合题意,请把正确答案的序号填入括号内,多选、不选、选错均不得分,选对但不全得1分。每题3分,共15分)
1.两个灯泡串联后接在电路中,下列说法正确的是( )
A.通过两个灯泡的电流可能不相等
B.通过两个灯泡的电流一定相等
C.两灯泡两端的电压可能不相等
D.两灯泡两端的电压可能相等
2.关于电压表的使用,下列说法不正确的是( )
A.电压表可以直接测电源电压
B.电压表不能跟被测电路串联
C.电压表使用时要并联在电路中
D.电压表不能直接测电源电压
3.图4表示的是滑动变阻器连入电路的四种接法,当滑片P向右滑动时,能使电路中电流变小的是( )
A.甲种接法
B.乙种接法
C.丙种接法
D.丁种接法
4.下列单位是电功率单位的是( )
A.伏特
B.瓦特
C.千瓦时
D.千瓦
5.关于安全用电,下列说法正确的是( )
A.不高于36V的电压是安全电压
B.潮湿的手可以接触开关
C.打雷下雨的时候不能站大树下
D.高大建筑物的顶端要安装避雷针
三、填空题(每空1分,共21分)
1.电阻是导体对电流的 ,滑动变阻器的原理是改变电阻丝 来改变接入电路的电阻。
2.如图5,电压表的示数为_________。
3.某同学在老师的指导下,用电压表和电流表测家用照明灯泡的电阻,测得灯泡两端电压为220V,通过灯泡的电流是0.28A,则该灯泡正常发光时灯丝的电阻值是___________Ω。
4.在电路中并联着两盏电灯L1和L2,它们的电阻分别为150Ω和450Ω, 若流过L1的电流强度为1.5A,那么流过L2的电流为___________A。
5.如图6所示,电压表测的是____________两端的电压,若电源电压是6V,电压表的示数是2V,则L2两端的电压是____________V。
6.在保持电阻不变的条件下,研究电流跟电压的关系时,得到下列几组实验数据,实验的正确结论是_________________________________________。
7.如图7所示,滑动变阻器的滑片P向B滑动时,电流表的示数将____;电压表的示数将______。(填“变大”、“变小”或“不变”)如此时电压表的示数为2.5V,要使电压表的示数变为3V,滑片P应向_________端滑动。
8.电热杯标有“220V 500W”的字样,将它接在家庭电路中,电热杯的电阻是 Ω,通过电热丝的电流是 A,通电10min产生的热量是 J。
9.把一个标有“6V,3W”的灯泡接在10V的电源上,要使灯泡正常发光,需要 联一个 欧的电阻,此时电阻消耗的功率是 W。
10.手机上使用的锂离子电池上标有“3.6V 900mA·h”其中的V、mA·h是物理量 的单位;请估算这种电池可储存的电能为 J,若手机正常工作时的电流约为6mA,则这种充满电的锂离子电池可供手机连续使用 h。
11.“220V 15W”的灯泡甲和“220V 100W”的灯泡乙,其灯丝长短相同,可发现灯泡 的灯丝较细,若将这两个灯泡并联在220V的电源上, 灯泡亮些,若将这两个灯泡串联在220V的电源上,则 灯泡亮些。
四、作图和实验题(1题6分,2题11分,共17分 )
1.根据如图8(a)所示电路图,用笔画线作为导线,将图(b)中实物对应连接成电路图。(已知电源由两节干电池串联组成)
3.给你一个电流表,一只滑动变阻器,一电压适量的电源,一已知电阻R0,开关,导线若干。请用上述器材设计一个实验,测“PZ2.5—?”小灯泡的额定功率。(要求画出电路图,写出实验步骤和表达式)
五、计算题(1题8分,2题9分,共17分)
1如图9所示,已知电源电压是6V,R1=10Ω,A1示数是0.5A,R2=20Ω,求A2的示数?
1.电阻R1的阻值为10Ω,当电阻R1与R2以某种方式连接后接在电源两端时R1两端的电压为9V,当两电阻以另一种方法连接后接在同一电源两端时,R1两端的电压为3V,求:
(1)电源电压;
(2)电阻R2的阻值;
(3)电阻R1以两种连接方法中的较大功率。
http://www.newkc.com/Soft/Html/Class8/Class77/Class113/3217220061226153933.html
北 京 四 中英语试卷
(考试时间为100分钟,试卷满分为100分)
第 I 卷
机读卷(共56分)
一、听力测试(共15小题,每小题1分,满分为15分)
略
二、语言知识(共18小题,每小题1分,满分为18分)
16. Hurry up! It’s time to go home now,_____ we’ll be late.
A. and
B. or
C. but
D. so
17. After you use plastic bags,you mustn’t throw them ______.
A. about
B. on
C. anywhere
D. nowhere
18. It’s too noisy. Would you please ______ the radio?
A. turn off
B. turn on
C. turn to
D. turn up
19. James always seems very ______,but sometimes he makes trouble.
A. quiet
B. quietness
C. quietly
D. being quiet
20. He likes to make students ______ instead of telling them the answer directly.
A. to think
B. think
C. thinking
D. thought
21. It’s getting late. You’d better go home now. Your parents _____ be worried.
A. will
B. should
C. must
D. need
22. People enjoy Chinese food because it has different _____ and is usually very delicious.
A. taste
B. tastes
C. tasty
D. tastier
23. – How far is it from here?
– That’s ______.
A. quite a long way
B. a quite long way
C. quite long a way
D. a way quite long
24. – Do you like sports?
– Yes. I always take _____ active part in our sports meeting.
A. /
B. a
C. an
D. the
25. – What should we do with our classroom?
– We must keep our classroom ______.
A. cleaned
B. cleaning
C. cleans
D. clean
26. – What do you think of my hat?
– It is a bit old, but it still looks nice ______ you.
A. in
B. with
C. on
D. for
27. – Do you like fast food?
– Not really. But it seems that American fast food is ______ in the world.
A. popular
B. more popular
C. most popular
D. the most popular
28. – Where did your classmates go?
– They went for a picnic, but I didn’t ______ them.
A. be with
B. become
C. join in
D. join
29. – What did he see after getting in?
– _____ his surprise he found the girl was blind.
A. To
B. With
C. At
D. For
30. – Who can ______ this problem?
– Let me have a try.
A. answer
B. solve
C. help
D. work
31. – How can I get there?
– The No.72 bus will ______ you there.
A. have
B. carry
C. bring
D. take
32. – Does your uncle like computer games?
– No. He doesn’t know ______ about computers.
A. many
B. much
C. lot
D. a lot
33. – Who helped the woman when she found her car was gone?
– A policeman came up and asked if ______.
A. could he help
B. he could help
C. he could help what
D. what he could help
三、完形填空(共12小题,每小题1分,满分为12分)
A
It was ten o’clock and I was lying in bed feeling very sleepy. I did not wake up. My mother was shouting,“Jim,get up. You are very late again.” I slowly got out of bed and stood up. I went to the bathroom,and then I saw my body in the mirror. I was very fat. I did not remember being fat. I had put on weight very quickly! After __34__,I went to the kitchen. “Here’s your favourite breakfast,” said my mother. There on the table were two hamburgers, big hamburgers. My mother was putting lots of sugar into my coffee. I understood __35__ I was fat.
After breakfast,my mother said,“Aren’t you meeting Sam in the park?” I couldn’t remember. I got my bag and walked to the park. With all my extra weight I breathed with difficulty and sweated. I opened my bag to get a tissue. I saw some cigarettes. Did I smoke? It was all very strange.
Then I saw Sam. He had not changed. He was still thin.
I followed Sam. I didn’t know where we were __36__.
We arrived at an ice cream shop. “Hi, Jim, how are you? You look hot,” said the waiter. “Do you want your __37__?” What did I usually have? I didn’t know. “Yes,” I replied.
Five minutes later the waiter came back with the biggest ice cream I had ever seen. I think there were eight different flavours. “If I eat that,I will put on a lot of weight,” I thought,but soon my spoon was in the ice cream.
The people in the ice cream shop came and stood around me watching me eating. Sam’s eyes were getting bigger and bigger,and I was growing fatter and fatter. I was like a balloon. I began to rise into the __38__,and …
I woke up.
I was thin Jim again,who likes an apple for breakfast and plays basketball for hours. What a terrible __39__!
34. A. eating B. getting up C. washing D. dressing
35. A. how B. where C. why D. when
36. A. standing B. going C. living D. talking
37. A. favorite B. love C. ice cream D. usual
38. A. air B. moon C. sun D. sky
39. A. day B. man C. dream D. ice cream
B
If you go into the forests with friends,stay with them. If you don’t,you may get lost. If you get lost,this is __40__ you should do. Sit down and stay where you are. Don’t try to find your friends—let them find you. You can help them find you by __41__ in one place. There is another way to help your friends or other people to find you. You can shout or whistle three times. Then stop. Then shout or whistle three times again. Any signal(信号) given three times is a call for help.
Keep up shouting or whistling. Always three times together. When people hear you,they will know that you are not just making a noise for __42__. They will let you know that they have heard your signal. They will give you two shouts or two whistles. When a signal is given twice,it is an answer to a call for help.
If you don’t think that you will get help before __43__ comes,try to make a little house with branches(树枝). Make yourself a bed with leaves and grass.
When you need some water,you’ll have to leave your little branch house to look for it. Don’t just walk away. Pick up small sticks and __44__ them as you walk in order to go back again easily. In short,when you are lost,the most important thing to do is to stay __45__.
40. A. how B. why C. what D. when
41. A. staying B. whistling C. shouting D. walking
42. A. help B. noise C. friendship D. fun
43. A. friend B. night C. helper D. danger
44. A. drop B. put C. throw D. break
45. A. with friends B. alone C. in one place D. in your branch house
四、阅读理解(共11小题,每小题1分,满分为11分)
A
Late last night Jennifer Johnstone,a 19-year-old American student,had a quarrel with her boyfriend,so she left his house at 2:50 in the morning and drove off. She was driving in thick fog along a road in Saint Pierce when she made a mistake at a corner and went off the road. Her car fell over a 160m cliff(悬崖). Jennifer was thrown out of her car,and landed 18m from the sea. When she came to herself,she realized(意识到) that she still had her mobile phone. She dialed 911,but she did not have a clear mind,so she had to make several calls before she could finally make the ambulance(救护) people understand her. While she was waiting for help to come she could see the sea was coming closer every moment. She lay there,feeling terrified, watching and waiting. Suddenly she heard the noise of a helicopter in the sky above.
The helicopter took about half an hour to see exactly where Jennifer was,but in the end it managed to reach her. By the time the helicopter took off,the waves were just about one meter away. At last,she was sent to the nearest hospital where she is now recovering. “It was so lucky that I had my mobile phone with me,” she said to journalists,“because if I hadn’t been able to phone for help,I would surely have died.”
True(A) or False (B)
46. Jennifer had a quarrel with her boyfriend in her house.
47. One reason for her car accident was the bad weather.
48. Jennifer was driving in day time.
49. Jennifer was driving along a road which was near the sea.
50. Jennifer couldn’t move because she was badly hurt.
B
When you watched the animated film Shrek,did you wonder how Shrek could look,act and speak like a real human being? Let’s have a look at the making of it.
Shrek began as a simple piece of art. People drew hundreds of pictures until they found the best looking one. He had to be ugly but attractive(迷人的),a clay(粘土) model of Shrek was then made,and the model was copied on a computer.
On the computer,his body was built as if it were a human body. He had a skeleton(骨骼),and his knees and fingers could move freely.
Then it took three months to decide how he should act. Since Shrek was so heavy,he shouldn’t walk too fast. But,if he walked more slowly,he would look too old. So he was made to walk like a strong man.
After the body was built,people then started working on Shrek’s looks—his face,his skin,and his clothing. They got their ideas from everywhere. For example,the lines on Shrek’s face came from a photo of one of the persons working on it. They also copied the shape of people’s mouth to make Shrek’s mouth match his words.
Since Shrek came into being,it was time to make the story. Three minutes of animation is called a “sequence.” All the 4,320 pictures in a sequence have to be drawn by hand first. In Shrek, six people had to work on each sequence for two months. There were about 30 sequences in total(总计) and 128,000 pictures. As each sequence was finished,they put it in the right place of the movie. And when all the sequences were finished,the movie was done. Shrek took three years to complete.
51. You can replace the underlined words “animated film” with ____.
A. animal film
B. cartoon
C. Disney-made movie
D. science fiction
52. If there were only six people working on the sequences,how long would it take to finish them?
A. Two months.
B. Three months.
C. Three years.
D. About five years.
53. Which of the following statements is NOT true?
A. Shrek is the product of high technology.
B. There were 129,600(30×4,320) pictures in total.
C. Computers played an important role in the making of Shrek.
D. You can guess what Shrek is saying from the shape of his mouth.
C
In the developing world,a million children die and millions more go blind every year because they don’t get enough vitamin A. In poor countries,nearly 20 percent of the babies die before they are born,because of their mothers’shortage(=being short of) of iron. Rice,a main food in many parts of the developing world,doesn’t provide enough of these essential(精华的) nutrients(养分).
Now researchers have found a way to enrich(=make… rich) rice with vitamin by inserting(插入) genes(基因) from other plants. By adding another gene from a French bean,the iron content(成分) of rice can be doubled. This genetically modified (GM) (转基因) rice would be ready for farmers as soon as 2003,promising to save millions of lives in poor countries.
Products of agricultural genetic engineering today include crops that are disease and insect resistant,fruits that stay fresh longer,and cow hormones that can increase milk production. Advances in the works include foods that have been modified to fight some diseases.
But many environmental and health activist groups are strongly against the GM technology. Greenpeace calls GM food “biological pollution.” Many countries are also against GM foods, such as the U. S.,Brazil,Japan and so on. Europe,where GM crops have been banned(禁止) since April 1998,is strongly against the GM foods. The European Union is also pushing for strict controls(控制) for buying GM foods from other countries. Much opposition(反对) to GM foods is based on the fear that “natural” plants could be forever changed—perhaps for the worse. They are also afraid that people and animals that eat GM food could develop health problems.
Are GM foods any more or a risk(冒险) than other agricultural innovations(创新) that have taken place over the year? Do the existing and future benefits of GM foods outweigh any risks that do exist? And what standard(标准) should governments use when judging(评判) the safety of GM crops? The environmental groups favour the “precautionary principle,”(预防原则) which calls for governments to ban any activity that raises worry about human health or the environment,even if some cause-and-effect relationships are not fully proved scientifically. As Norman Baker said: “We must always use the precautionary principle. That says that unless you’re sure of enough control,unless you’re sure the risk is minimal(最小的),unless you’re sure nothing horrible can go wrong,you don’t do it.”
But can any innovation ever meet such a standard of certainty? And what about those millions of poor people whose lives could be saved by GM foods? Perhaps the “precautionary principle” isn’t so precautionary after all.
54. Why do millions of children die or go blind,and babies die before birth?
A. Because their mothers are short of iron.
B. Because they don’t have enough vitamin A.
C. Because their countries are poor and belong to the developing world.
D. Because the main food rice doesn’t contain enough of the essential nutrients.
55. Which of the following products of agricultural genetic engineering is NOT mentioned in the passage?
A. Crops that are disease and insect resistant.
B. Cow hormones that lead to increased milk production.
C. Foods that are modified to avoid common diseases.
D. GM fruit that can stay fresh longer than other fruit.
56. Greenpeace is _____.
A. a country which doesn’t allow GM crops to grow in
B. environmental and health activist group which opposes GM technology
C. a country which calls GM food “biological pollution”
D. a person who is strongly against GM foods
第 II 卷
非机读卷(共44分)
五、补全单词 根据句意及所缺单词的首字母补全单词。(共7小题,每小题1分,满分为7分)
57. Waiter! We need to go right now. Could we have the b_______ please?
58. Don’t play with the knife,it may h_______ you.
59. Don’t p______ others when you get on the bus.
60. I got up early so that I could c_______ the early bus.
61. Look! The lights on the Christmas tree are shining b_______.
62. Which is the f_______,the bus stop,the train station or the airport?
63. It’s a beautiful place here and many v_______ come for its beauty each year.
六、选词填空 用方框中所给词的适当形式填空。(共7小题,每小题1分,满分为7分)
tell, lose oneself in, look after, look over, can afford, disturb, turn on
64. Please _____ the lights. It’s dark here.
65. The machine is too expensive for me. I _______ it.
66. Did the doctor _______ Mrs Lee after she was sent to hospital?
67. They both _______ the beautiful music at the concert last night.
68. When I was a child,mum often _____ me _____ cross the street before the traffic.
69. If you make a lot of noise,you may ______ others.
70. He is old enough to ________ himself while his parents are out.
七、补全对话(共5小题,每小题2分,满分为10分)
A: Hi,Bill. We’re going to visit an island at the weekend. __71__
B: Great! I’d love to. Shall we bring food for a picnic?
A: __72__ We’ll start early in the morning. We’ll meet at the school gate at six. __73__
B: That’s fine.
A: __74__
B: Don’t worry. I’ll be there on time. Bye.
A: __75__
八、完成句子(共5小题,每小题2分,满分为10分)
76.我认为这样不对。
77.你认为对我们来说有必要学习等待吗?
78.工作日里要么是我要么是爷爷做家务。
79.露茜和莉莉一样高,但是她没莉莉唱得好。
80.昨晚上我一入睡,就梦见我去了那个晚会。
九、作文(满分为10分)
请你写出至少十条规则,告诉大家在某个特定的公共场所应该做什么,不应该做什么。(不少于50字)例如:
We must not speak while eating.
_______________________________________________________________________________________
_______________________________________________________________________________________
_______________________________________________________________________________________
_______________________________________________________________________________________
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参考答案
一、听力测试(共15小题,每小题1分,满分为15分)
略
二、语言知识(共18小题,每小题1分,满分为18分)
16—33 BAAAB CBACD CDDAB DBB
三、完形填空(共12小题,每小题1分,满分为12分)
34—39 CCBDAC 40—45 CADBAC
四、阅读理解(共11小题,每小题1分,满分为11分)
46—50 BABAA 51—53 BDB 54—56 DCB
五、补全单词(共7小题,每小题1分,满分为7分)
57. bill
58. hurt
59. push
60. catch
61. brightly
62. farthest
63. visitors
六、选词填空(共7小题,每小题1分,满分为7分)
64. turn on
65. can’t afford
66. look over
67. lost themselves in
68. told…not to
69. disturb
70. look after
七、补全对话(共5小题,每小题2分,满分为10分)
71. Are you coming with us?
72. Good idea!
73. Is that OK?
74. Don’t be late.
75. See you!
八、完成句子(共5小题,每小题2分,满分为10分)
76. I don’t think it is right.
77. Do you think it necessary for us to learn to wait?
78. Either I or my grandpa does the housework on weekdays.
79. Lucy is as tall as Lily,but she doesn’t sing as well as Lily.
80. Last night as soon as I fell asleep I dreamt that I went to the party.
九、作文
略
有点多~慢慢看~
Unit One
1. How often do you exercise ? → How often + 助动词do(does或did) + 主语 + do sth. ? 疑问词how often是问频率(多经常), 在这里助动词do(does或did) 是起帮助构成疑问的作用
Every day / Once a week / Twice a month / Three times a month / Three or four times a month .
2. What do you usually do on weekends ? 第一个do 为助动词, 在这起帮助构成疑问的作用;而第二个 do 则是实义动词。 I usually play soccer .
3. What’s your favorite program ? It’s Animal World .
4. What do students do at Green High School ? 第一个do 为助动词, 在这起帮助构成疑问的作用;而第二个 do 则是实义动词。
5. As for homework , most students do homework every day . as for...意思是“至于;关于”,常用于句首作状语,其后跟名词、代词或动词的-ing形式(即动名词)。如:
As for him,I never want to see him here. 至于他,我永远不希望在这里见到。
As for the story,you'd better not believe it. 关于那故事,你最好不要相信。
6. The results for “ watch TV ” are interesting .
7. Mom wants me to get up at 6:00 and play ping-pong with her . → want to do sth.意思是“想要做某事”;want sb. to do sth.意思是“想要某人做某事”。如:
Do you want to go to the movies with me?你想和我一起去看电影吗?
The teacher doesn't want us to eat hamburgers.老师不想让我们吃汉堡包。
8. She says it’s good for my health . → be good for...表示“对……有益(有好处)”。其反义为:be bad for...。(这里for 是介词,后跟名词、代词或动名词)如:
It's good for us to do more reading. 多读书对我们有好处。
Reading in bed is bad for your eyes.在床上读书对你的眼睛有害。
9. How many hours do you sleep every night ?
10. I exercise every day , usually when I come home from school .
11. My eating habits are pretty good . 这里pretty相当于very 。
12. I try to eat a lot of vegetables , usually ten to eleven times a week . → try to do sth.表示“ 尽力做某事 ” ,不包含是否成功的意思 / try doing sth. 表示“ (用某一办法)试着去做某事”。 如:You’d better try doing the experiment in another way. 你最好试试用另一种方法做这个试验。
13. My healthy lifestyle helps me get good grades . → help sb.(to) do sth.帮助某人做某事
14. Good food and exercise help me to study better . → help sb. (to) do sth.帮助某人做某事 / 这里better是well的比较级,而不是good的比较级
15. Is her lifestyle the same as yours or different ? =Is her lifestyle the same as your lifestyle or is her lifestyle different from your lifestyle ? → be the same as … / be different from …
16. I think I’m kind of unhealthy . kind of = a little / a kind of 意思是“一种”
17. What sports do you play ?
18. A lot of vegetables help you to keep in good health . keep in good health = keep healthy = stay healthy
19. You must try to eat less meat . → try to do sth. 表示“ 尽力做某事 ” , 不包含是否成功的意思 / less是little的比较级
20. That sounds interesting. 这是“主语+系动词+表语”结构的简单句。sound(听起来),look(看起来),smell(闻起来),taste(尝起来),feel(觉得),seem(好象),grow(变得) , get(变得)等词在英语中可用作系动词,后跟形容词作表语。如:
It tastes good. 这味道好。
The music sounds very sweet. 这音乐听起来很入耳。
The smoke grew heavier and heavier. 烟雾变得越来越浓了。
Unit Two
1. What’s the matter ? What’s the mater with you ? with为介词,后跟名词、代词或动名词。人称代词必须用它的宾格。
I have a cold / have a sore back / have a stomachache
2. You should lie down and rest / drink hot tea with honey / see a dentist / see a doctor .
3. I’m not felling well . 这里well表示身体状况,不能用good代替
4. When did it start ? About two days ago .
5. That’s too bad .
6. I hope you fell better soon . 这里better是well的比较级
7. Traditional Chinese doctors believe we need a balance of yin and yang to be healthy . 这里 to be healthy是动词不定式短语,作目的状语
8. Maybe you have too much yin . too much后跟不可数名词,而too many后跟可数名词复数
9. It’s easy to have a healthy lifestyle ,and it’s important to eat a balanced diet . → It’s easy to do sth . 做某事容易 / It’s important to do sth . 做某事重要
10. Everyone gets tired sometimes . 这里get连系动词,tired是形容词作表语,属系表结构
11. A sore throat can give you a fever . → give sb. sth . = give sth. to sb. 把某物给某人
12. Don’t get stressed out. It’s not healthy . 在这里get是连系动词,stressed out是表语
13. I have a toothache . I need to see a dentist . → need意思为 “需要” ,作实义动词时,后跟动词不定式,否定式为don’t /doesn’t / didn’t need (to do sth.) ;作情态动词时,只能用于否定句或疑问句中,否定式为needn’t(do sth.) ,除有过去式外,没有其它的形态变化
14. Eat a balanced diet to stay healthy . to stay healthy是动词不定式短语,作目的状语
15. I’m not feeling very well at the moment . at the moment = now
Unit Three
1. What are you doing for vacation ? I’m babysitting my sister .
Where are you going for vacation ? Italy .
这是现在进行时的一种比较特殊的用法,用来表示按计划或安排要做的事情,现在还没有去做。
2. Who are you going with ? I’m going with my parents . with my parents是介词短语,在这里作伴随状语,起修饰谓语动词are going的作用
3. When are you going ? I’m going on Monday .
4. What are you doing there ? I’m going hiking in the mountains .
5. How long are you staying ? Just for four days . I don’t like going away for too long .疑问词hwo long是对时间长短或事物的长度提问,在这里是对时间的长短进行提问。
6. Have a good time . = Enjoy oneself . 玩得开心、愉快
7. Show me your photos when we get back to school . → show sb. sth. = show sth. to sb. 把某给某人看
8. I’m going to Hawaii for vacation . for vacation是介词短语,在这里作目的状语,起修饰谓语动词的作用
9. What’s it like there ? 这里like是介词,而不是动词
10. Can I ask you some questions about your vacation plans ? → ask sb. sth . 问某人某事
11. Ben Lambert , the famous French singer , is taking a long vacation this summer ! → take a vacation 度假
12. He thought about going to Greece or Spain , but decided on Canada . → think about 考虑 / decide on 决定 这里的about和on都是介词
13. “ I always take vacation in Europe ,” he said . “ This time I want to do something different .” → (1). want to do sth. (2). 修饰不定代词(something , nothing , anything等)的定语常放在不定代词的后面
14. He plans to have a very relaxing vacation . → plan to do sth. 计划做某事
15. I’m planning to spend time in the beautiful countryside .
16. I just finished making my last movies . → finish doing sth. 完成做某事
17. I hear that Thailand is a good place to go sightseeing . to go sightseeing是动词不定式短语,作a good place的后置定语
18. She’s leaving for Hong Kong on Tuesday . → leave A for B 离开A地去B地
19. I want to ask you about places to visit China . to visit China是动词不定式短语,作places的后置定语
20. I’m planning my vacation to Italy this weekend . to Italy是动词不定式短语,作my vacation的后置定语
21. What should tourists take with them ? with them是介词短语,在这里作伴随状语,起修饰谓语动词take的作用
22. Where are you leaving from ? leave from 离开某地(注:from是介词)
Unit Four
1. How do you get to school ? 疑问词how 在这里是对方式进行提问
I ride my bike / walk / take the subway . By bike / bicycle / bus / train / subway / taxi / air / plane / ship / boat . On foot .
How do I get there ? 因there是副词,所以不能说get to there Don’t worry . Let me look at your map . Ok , first … , next … . Then … .
2. How long does it take ? 疑问词hwo long是对时间长短或事物的长度提问
It takes about 25 minutes to walk and 10 minutes by bus .
How long does t take you to get from home to school ?
It takes twenty-five minutes . → take sb. some time to do sth. 花费某人……时间做某事
3. Lin Fei’s home is about Kilometers from school .
4. How far is it from your home to school ? It’s three miles .
How far do you live from school ? I live 10 miles from school .
疑问词how far在这里是对距离进行提问
5. In other parts of the world , things are different .
6. In China , it depends on where you are . → depend on 视……而定;决定于
7. That must be a lot more fun than taking a bus .
8. In North America , not all students take the bus to school . not all是部分否定,意思是并不是所有的;不是全部的
9. Other parts of the world are different from the United States .
10. A small number of students take the subway . → a number of = many 许多
11. What do you think of the transportation in your town ? → think of 对……有某种看法
12. When it rains I take a taxi .
13. I have a map but in Chinese .
14. If you have a problem , you can ask a policeman .
Unit Five
1. Can you come to my party ?
Sure , I’d love(like) to . / I’m sorry , I can’t . I have to help my parents .
Can you play tennis with me ?
情态动词can在这里起征求对方意见的作用。
2. I have too much homework this weekend . too much后跟不可数名词;too many后跟可数名词复数
3. That’s too bad .
4. Maybe another time .
5. Thanks for asking . for介词,后跟名词,代词或动名词
6. Come and have fun . / Come and join us .
7. On Wednesday , I’m playing tennis with the school team .
8. I have to study for my science test on Thursday . have to强调客观原因;而must强调主观原因
9. Please keep quiet ! I’m trying to study . → try to do sth. 表示“ 尽力做某事 ” , 不包含是否成功的意思
10. Do you want to come to my birthday party ? → want to do sth.意思是“想要做某事”
11. Li Lei is going fishing with grandpa the whole day . the whole day = all day 整天
12. Can you come over to my house ?
13. I’m free till 22:00 .
Unit Six
1. I’m more outgoing than my sister . → 主语 + 动词 + 形容词比较级别 + than + 比较对象
2. As you can see , in some ways we look the same , and in some ways we look different .
3. However , we both enjoy going to parties . → enjoy doing sth. = like doing sth. 喜欢做某事
4. Liu Li has more than one sister . more than 不止
5. Liu Li and Liu Ying have some things in common . → in common (团体)共同的;公有的
6. Liu Ying is not as good at sports as her sister . as …as 和……一样 (其中as…as之间的形容词必须用原级);它的否定式是:not as(so) … as
7. Liu Ying talks more than Liu Li . 这里more是much的比较级,而不是many的比较级
8. Both girls go to lots of parties . lots of = a lot of 许多
9. My friend is the same as me . → be the same as … 与……一样 / be different from …与……不同
10. I think a good friend makes me laugh . → make sb. do sth. 使某人做某事
11. For me , a good friend likes to do the same things as me . → like to do sth.
12. That’s not very important for me ….
13. What’s your opinion ?
14. Should friends be different or the same ? same前常有定冠词the
15. I like to have friends who are like me . / I like to have friends who are different from me . → like to do sth.中的like 是动词,意思是“ 喜欢 ”;而are like me 中的like 是介词,意思是“ 像 ”。要注意区别like的词性。
16. I’m quieter than most of the kids in my class .
17. We both like doing the same things . → like doing sth. 喜欢做某事
18. Who do you think should get the job , Ruth or Rose ?
19. You must be good with children / enjoy telling jokes . → be good with sb. 对某人好;与某人相处融洽 / enjoy doing = like doing sth. 喜欢做某事
20. He can’t stop talking . → stop doing sth. 意为“ 停止(正在)做的事情” ,doing在句中是stop的宾语。如:When the teacher came in , the students stopped talking and laugh . 老师走了进来,学生们停止了谈笑。 / stop to do sth. 意为“ 停下(正在做的事)去做某事” ,动词不定式短语to do sth.在句中作动词 stop 的目的状语。 如:He stopped to write a letter to her . 他停下手边的工作,给她写信。
21. He always helps others .
22. She likes to stay at home and read . → like to do sth. 喜欢做某事 / stay at home 呆在家里
Review of units 1-6
1. You use milk to make cheese and you can drink it , too . 动词不定式短语to make cheese在这里作目的状语,修饰use milk
2. A part of your body beginning with “ a ” . → begin with 以……开始 (注意:with是介词)
3. The opposite of short is long or tall .
4. The neck is between your head and your body . → between … and 在……和……之间
5. Carrots , onions and peppers are all vegetables . → all用于三者或三者以上;both用于两者。同时要注意它们在句中的位置,即位于连系动词(be),助动词(be , will , shall , should 等),情态动词(can , may , must , have to等)的后面;其它动词的前面。
6. I like reading books in my free time . like doing sth. 喜欢做某事 / in one’s free time 在空余时间
7. I feel terrible , doctor . 在这里feel是连系动词,terrible是形容词作表语,feel terrible是系表结构作复合谓语
8. I usually relax in my swimming pool .
9. I’m very excited to be taking a vacation around China ! → be excited to do sth. 做某事很激动
10. Who is more athletic , Gao Yan or Li Tong ?
附:音节小议
英语的音素分为元音和辅音两大类,由一个元音或一个元音加一个或几个辅音结合构成的语音单位叫做音节。例如:
由一个元音构成的音节:I /aI/“我”、oh / u/“哦”、a/eI, /“一个”、ear/I /“耳朵”等;
由一个元音加一个辅音构成的音节: bee/bi:/“蜜蜂”、ill /il/“生病”、my/mai/“我的”、see /si:/“看见”等;
由一个元音加几个辅音构成的音节:bed /bed/“床”、bag/b g/“袋子”、clock /kl k/等。
英语的词有一个音节的,也有两个音节或三个音节以上的。顾名思义,一个音节叫做单音节,两个音节叫做双音节,三个或三个以上的音节叫做多音节。例如good /gud/只有一个音节,所以叫做单音节词;morning/`m :nI /分别有/m :n/和/I /两个音节,所以叫做双音节词;而afternoon /`a:ft `nu:n/有/a:f/、/t /、/nu:n/三个音节,所以,叫做多音节词。
在英语中,双音节或多音节的单词,每一个词都有一个读得特别响亮的音节,叫做重读音节,重读音节以重读符号“`”来表示。例如在evening /`i:vni /一词中,/i:/是重读音节。一般来说,只有一个音节的单词往往重读,但通常不标重读符号;双音节词和多音节词至少有一个音节重读,并在重读的音节左上方标出重读符号。
音节分为开音节和闭音节。以元音字母a 或 e, i, o, u结尾的音节叫做开音节,如nice, hi, hello, fine等都是以开音节结尾的单词;以辅音字母结尾的音节叫做闭音节,如meet, bed, what, wall, mom等都是以闭音节结尾的单词。
1.记单词的最好办法是什么? 把一个单词造出多个句子,训练把这多个句子在场景下脱口说出。句子记住了,单词也当然得到了充分理解和长期记忆。
2.学习英语忌过分讲究速度和效率,不愿花时间经常重复(复习)已学过的内容。语言运用是一种技能,技能则只有靠熟能生巧,要不断重复才会熟练,只有熟练了才会形成一种不假思索的技能。
3.语言是有声的,我们对语言的感受首先是语言的声音作用于我们的大脑。如果不练习听力,只是默默地阅读和背单词,其结果不仅听不懂别人讲外语,而且阅读水平也难以提高。
4.语言的实践性很强,如果只学而不用,就永远也学不好。我们学语言的目的就是为了应用,要学会在用中学习,这样才能提高兴趣,达到好的学习效果。
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