10道英语选择题100积分 正确率要高,捣乱的不要来!

作者&投稿:贰甄 (若有异议请与网页底部的电邮联系)
数学英语题目,正确率要高,就悬赏高分,过程具体啊~~~~

1、图中,直线上依次有A、B、C、D、E、F六个点,且AB=a,BC=b,CD=c,DE=d,EF=e,求图中所有线段长度的和(用a、b、c、d、e求长度)(这图凑合着看看吧)
━A━━━B━━C━━━━━D━━━E━F━
a b c d e

解:图中所有线段及其长度如下:
AB=a
AC=a+b
AD=a+b+c
AE=a+b+c+d
AF=a+b+c+d+e
BC=b
BD=b+c
BE=b+c+d
BF=b+c+d+e
CD=c
CE=c+d
CF=c+d+e
DE=d
DF=d+e
EF=e,
所有线段长度相加得所有线段的和为5a+8b+10c+8d+5e


2、一个长方体的长是8厘米,宽是长的4分之3 ,高是宽的75%.求:这个长方体的表面积.

解:长:8,宽:8x3/4=6,高:6x75%=64.5
S=(8x6+8x4.5+6x4.5)x2=222

3、互为余角的两个角的差为15°,求:
(1)较大角的补角的度数; (2)较小角的补角与较大角的补角的差.
解:设较大角为X度,所以x-(90度-x)=15,x=52.5度
因为较大角是52.5度,所以它的补觉是127.5度
较小角是37.5度,所以它的补角是142.5度
所以差为15度


4、在-5分之3 和5分之2 之间插入三个数,使这五个数中每相邻两个数的差都相等,求插入的这三个数。
解: 设每两个数之间的差为x
则,-3/5 +4x=2/5
解得到x=1/4,
所以这三个数是分别是-7/20 , -1/10 , 3/20


5、用甲、乙、丙三种糖果按2∶4∶3的比,混合成135千克什锦糖,问需要甲、乙、丙三种糖果各多少千克?
解:2+4+3=9
则需要甲:135 x 2/9=30
乙:135 x 4/9=60
丙:135 x 3/9=45

6、今天小丽一家人的岁数总和是100岁,爸爸比妈妈大5岁,妈妈的岁数是小丽岁数的4倍少2岁,则小丽和爸爸,妈妈今年各几岁?
解:设小丽今年x岁,则妈妈为4x-2 岁,爸爸4x-2+5 岁
依题意得
x+4x-2+4x-2+5=100
解得x=11
所以妈妈42岁,爸爸47岁



7、小丽家安装了分时电表,每天早上6:00到晚上22:00为平时段,每度电0.61元,其余时间为谷时段,每度电比平时段便宜0.31元,以知小丽家谷时段的耗电量是平时段的½ ,本月共付电费100.32元,求小丽家本月的耗电量.
解: 设平时段耗电量为x度,则谷时段耗电量为1/2x度
依题意得 0.61x+(0.61-0.31)× 1/2x=100.32
解得 x=132
1/2x=66
66+132=198
所以本月平时段耗电量为132度, 谷时段耗电量为66度,总耗电量为198度。


8、体育场有一环形跑道长400米,甲、乙两人练习长跑,甲每秒跑8米,乙每秒跑7米,两人在相距60米的地方同时同向而行,多少秒后两人第一次相遇?
解:设x秒后相遇
依题意得
7x+60=8x
解得x=60
所以六十秒后两人第一次相遇


( C ) 1. I have a friend and she can’t read _______ write.
A. and B. but C. or D. so
( D ) 2. Jenny and Alice like ______________ together.
A. be B. to C. in D. to be
( A ) 3. Don’t sit between ______________________.
A. you and me B. you and I C. me and you D. I and you
( A ) 4. _______ your father ________ Hong Kong yet?
A. Has…been to B. Has…gone to C. Does…go D. will… go
( B ) 5. We’ll have a visit ____________ the Bund next week.
A. to B. in C. on D. from
( D ) 6. It’s raining outside, so our teacher tells us _____________ football.
A. don’t play B. doesn’t play C. to not play D. not to play
( C ) 7. The students __________ rubbish to look after the environment.
A. put up B. get up C. pick up D. look up
( D ) 8. Mum always keeps our bedroom ___________.
A. cleaning B. cleans C. to clean D. clean
( B ) 9. –What about a trip to Ocean Park? –___________________________.
A. I’m sorry. B. All right. C. Excuse me. D. Thank you.
( B ) 10. He has worker in Shanghai for _____________ hour.
A. the B. an C. a D. /

( A )1. ____ man over there is our new English teacher. He is ____ European.
A. The; an B. A; a C. A; / D. The; a
( B )2. Sheep are very important in our life. We can get wool ____ them.
A. from B. on C. in D. with
( D )3. “Help ____ to some chicken, boys and girls.” Mrs. Green said.
A. you B. Yours C. yourself D. yourselves
( B )4. Kitty is going to buy ____ for her new flat.
A. a furniture B. some furniture C. a piece furniture
D. some furnitures
( C )5. The Earth is our home. People should stop ____ it.
A. pollute B. Pollution C. polluting D. to pollute

1.设BC为x,则AB为4x,AC为5x,DC为2.5x,而DC=2.5,所以x=1
所以AB=4x=4

2.180-∠a=7/3∠a+10 所以∠a=127.5°

3.底面面积为9,所以边长为3cm。棱长为3×4×2+4×4=40

4. D__A_B___C
1、4倍
2、三分之一
3、二分之一

5.由于( a + 8 ) 2 + | b – 7 | = 0,
而( a + 8 ) 2 和| b – 7 |均为非负数,
所以a+8=0,b-7=0 得a=-8,b=7
所以( a + b )2oo2 + ( a + b ) 2oo3=0

6.-1/2+(-1/3)=-5/6
则倒数为-6/5
平方得36/25
乘以5平方,即25 得36
所以答案为36

7.设上班路程是x公里,则
1/10x÷5+(9/10x-1)÷25+1÷5=x÷5-2
解得x=15
所以上班路程是15公里.

8.设投中了x个三分球,y个两分球,则
x+y=14-3
3x+2y=28-3
解得x=3,y=8
所以投中了3个三分球,8个两分球.

9.设免费的重量为xkg,超过的行李费为y元/kg,则
3x+0.5÷y+1.5÷y+2.5÷y=120
x+9.5÷y=120
解得x=25,y=0.1
则小杰行李重25+0.5÷0.1=30kg,
小明行李重25+1.5÷0.1=40kg,
小丽行李重25+2.5÷0.1=50kg。

10.无解
(这题你确定题目是这样的吗?是2/3而不是3/2 ?我算了一下,这题无解啊)

½ax+5=(7x-3)分之2确定是这样吗?我算了一下还是无解。。。a、x不可能
同时为正整数。

IV.what “what sth looks like ”是sth看起来像
instead 代替
Ocean “Pacific Ocean”是太平洋
heaviest 最重的
itself 根据下句的提示可以知道那种石头没办法在那座小岛上找到,而要到
其他的小岛上找。

IV. C C A A C

第一大题:Use of English(5道小题,共15分)
1、A: Would you come to our party, please?B:_________________________
A、I’m afraid I can.
B、I’d like to, but I’ve already had plans for tonight.
C、Thank you for asking me, but I will come.
D、I wish I could, but I’ve brought you a lot of trouble.
答案: B
其它选项都有语病,譬如A应该改成I'm afraid I can't.C应该改成Thank you for asking me,but I won't come;D应该改成I wish I could,but I'm afraid I will bring you a lot of trouble.

2、A: Could you please turn down the music? Iˊm preparing for tomorrowˊs exam.B:________
A、Itˊs none of your business.
B、What are you doing?
C、Sure. Sorry to disturb you.
D、No, I donˊt think so.
答案:C 其他的选项都会引发吵架、打架等事件。

3、A: Is ________ here?B: No, Bob is absent.(3分)
A、anybody
B、somebody
C、everybody
D、nobody
答案:C 句子大意:所有人都在么?不,鲍勃不在。

4、A: I suggest you work harder on English.B: _____________
A、You are clever.
B、It’s easier said than done.
C、I’m afraid not.
D、I don’t agree with you.
答案:B 因为其他的选项要不然词不达意(A),要不然就是否定前面的说法。

5、A: Sorry, I have kept you waiting.B: ________________.
A、I donˊt care
B、Iˊm sad
C、No, not at all
D、Thatˊs all right
答案:D 句子大意:A:不好意思让你久等了;B:没事。
二大题:
Vocabulary and Structure(5道小题,共15分)
1、The red rose is her ___B____. (3分)A、favor B、favorite C、like D、best(红玫瑰是她的最爱)

2、The little girl was so frightened that she just wouldn’t
___A____ her grip on my arm.(3分)A、loosen(松开) B、remove(移除) C、relieve(减轻(痛苦)) D、dismiss(解雇)

3、If the whole program _D__ beforehand, a great deal of time and
money would have been lost.(3分)A、was not planned B、were not plannedC、would not be planned D、had not been planned
讲解:这里表达的是过去已经发生的动作,所以用过去完成时。

4、Mary wanted to avoid running down a dog but ran _A__ a big
tree by the roadside.(3分)A、intoB、onC、overD、up
run into(碰撞)run on(继续;不停地讲, 滔滔不绝) run over(造访)
run up[英][rʌn ʌp] [美][rʌn ʌp]
升起;(使)增长;迅速地登上;沿…迅速地移动

5、We will leave very early for the airport tomorrow morning, so
you had better __A____ and arrange a taxi.(3分)A、call forB、call inC、call upD、call on

bccbd
babac
说实话,第一大题的4与第二大题的5,不是很确定。
一4中,A说“我建议你在英语上多下功夫”,B,我选的回答是说总比做容易。
二5中,我们明天很早出发去机场,所以你最好打电话预定出租车。
希望对你有帮助。


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