翻译几句英文句子
1、下午六点钟左右体育馆通常很忙。（tend to) The gym tends to be very busy at about six pm. 2、这个地区现在不安全，还是远离它为好。（stay away from) This area is not safe now, we'd better stay away from it. 3、就销售而言，他们是该地区五大超市之一。（in terms of) In terms of marketing, it's one of the most biggest five supermarket. 4、这间房既要作卧室又得作客厅。 （serve as) This room will serve as both bedroom and living room. 5、生产部负责监督这个项目的进展。（monitor) The production apartment monitors the progress of this program. 6、上个月经理忙于一项对营销活动的研究工作。（be involved in) The manager was involved in a research of a managerment. 7、现在许多大公司都利用网站来推销他们的产品和服务。（promote) Nowadays, many big companied use websites to promote their products and service.
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11（a）括号前面的是一个人名，没什么好说的，重点讲后面的
意思是他指出根号n是一个 斜边为n+1，一个直角边为n-1的三角形的剩下那个直角边长的一半。
【证明】这样的三角形的第三边长为√((n+1)^2-(n-1)^2)=√(4n)=2√n，所以√n确实是这个三角形另一条直角边长度的一半。
11（b）第二题说前面那个人西奥多勒斯用一种方法获得了√(n+1)。他的方法是这样的，首先画一个直角边是1的等腰直角三角形，然后以这个三角形的斜边作为第二个直角三角形，画第二个直角三角形的另一个直角边长度是1。以此类推，每次用前个一直角三角形的斜边和一条长为1的作为后一个直角三角形的直角边，这样n次以后得到的直角三角形的斜边是√(n+1)。
【证明】用数学归纳法吧，具体步骤不写了。因为你可以知道第一个直角三角形斜边是√(1^2+1^2)=√2，第二个斜边是√(√2^2+1^2)=√3........第n个斜边是√(√n^2+1)=√(n+1)
【注】前面两到题中leg指的是直角三角形的直角边，hypotenuse指的是三角形的斜边（本来是弦的意思）
13（a）已知一个长方形的面积是12，宽是长的3/4，求长和宽的参数
【解】设长为4x，宽为3x，面积S=3x*4x=12，x=1（舍负），所以长是4，宽是3
13（b）已知一个直角三角形的一条直角边是另一条的(2+1/2)倍，面积是20，求两边的参数
【解】设一条是2x，另一条是5x，面积S=1/2*2x*5x=20，x=2（舍负），所以两条直角边分别是4和10，也可以得到斜边是2√29
【注】width，宽，length，长，dimensions，尺寸（对应到长方形中是长宽，直角三角形中是直角边，斜边）
On Sunday，I like to walk aroud the shopping mall nearby with my mother.
2.交通信号灯转绿了。在我们的车前还有一辆车，它就是不动.(ahead of )
The traffic light turns green.But a car is ahead of us,staying there .
3.我们应努力过上更为环保的生活。（green）
We should work harder to live a greener life.
4.从东方明珠电视塔上看下去，我们可以看到整个上海的中心（get a view of)
Seeing down from the Oriental Pearl TV Tower,we can get a whole view of the centre of Shanghai.
5.这部车待售，要价10万元（for sale）
The car is ￥100,000 for sale.
6到2040年，家中所有的电视机都将联网。（link to)
Up to 2040,all families' TV set will be linked (to the internet/wih each other).
7。2040年的生活将会和现在完全不同（completely)
Life in 2040 will be completely different from now.
8不幸的是，我们在海滩的时候，天气十分糟糕（horrible)
Unfortunately,the weater was horrible when we were on the beach.
1 I would like to go to shopping mall with my mom on sunday.
2 The traffic light turned green, but there was a car that ahead of our car didn't move.
3
1.星期天，我喜欢和妈妈一起去附近的购物中心逛逛。（shopping mall)
On Sunday，I would like to shop aroud the shopping mall nearby with my mother.
2.交通信号灯转绿了。在我们的车前还有一辆车，它就是不动.(ahead of )
The traffic light has turned green.But the car ahead of ours stays still.
3.我们应努力过上更为环保的生活。（green）
We should work hard to live a greener life.
1是On Sunday, I like to go to the nearby with mommy shopping center around. (shopping mall)
2是Traffic lights turn green. In our car and a car, it is not move ahead of).
3是We should try hard to live a more eco-friendly life. (green)
4是From the Oriental pearl TV tower on look down, we can see the whole Shanghai center (get a view of)
5是This car for sale for 100,000 yuan (sale).
6是By 2040, all the family's TV will networking. (link to)
7是2040 life will and now completely different ('re)
8是Unfortunately, we are at the beach, the weather is very bad (horrible)
望采纳
1. On Sunday, I like to go to the nearby with mommy shopping center around.
2. The traffic lights turn green. In our car and a car, it won't work.
3. We should try hard to live a more eco-friendly life
4. From the Oriental pearl TV tower on look down, we can see the whole Shanghai center
5. This car for sale for 10 million yuan
6 by 2040, all the family's TV will networking.
7. 2040 life will and now is totally different
8 unfortunately, we are at the beach, the weather is very bad
1.I like going to shopping mall with my mum on Sundays.
2.The traffic light turned green.The car ahead of us wouldn't move.
3.We should try our best to live a 'green' life.
4.We can get a view of the centre of Shanghai from the Oriential Pearl TV Tower.
5.The car for sale costs ten thousand yuan.
6.Televisions in our families will be linked to the Internet in 2040.
7.The life in 2040 will be completely different from it now.
8.Unluckily,the weather was very horrible when we were at beach.
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