5.上海的磁悬浮列车最高时速可达每小时431 千米。

The maglev train in Shanghai can reach                             431 km per hour.

根据下列的对话情景在每一个空白处填上一个适当的句子，使对话的意思连贯、完整。

A： Hi,Jane,would you like to help to protect the environment?

B： 1.       

A： Well,first,you can start by turning off the lights when you leave the room.

B ： 2.        But sometimes I turn

off the lights without thinking what’s next.

A: Second,you can ride a bike or walk.

3 .       

B ： That will not only save energy and money but also reduce air pollution,what else?

A: Try recycling paper.

B： Mmm,newspapers,magazines,mails...

4 .       

A: And last,take a bag when you go shopping. Don’t use plastic bags.

B: OK. 5.          Let’s  do  it together.

4.我们通常用木材料来造纸。

We usually        wood__      paper.

3.如果电动车被广泛使用，电量需求将会增加。

There will be                  in  electricity       if  electricity  vehicles  are widely used.

2.我的表-无法忍受城市生活的高消费。

My cousin can’t stand                                in  the city.

1 . 二十世纪七十年代，美国人发明了照相机和手机。

                       ，Americans invented digital cameras and cellphones.

(   ) 5. —What do you call this in English?

—It’s a stamp. It’s used          sending letters.

A. by B. of C. with D. for

(   ) 4.        he  is very tired,           he still goes on working.

A. Though ; but  B. But; though

C. Though; /  D. But; /

(   ) 3.          Lucy            Lily comes from the USA.

A. Both... and

B. Not only...but also

C. /... and

D. Both... or

(   ) 2. —Who’s the tallest boy in  your class?

—Mike is taller than any        boy  student in our class.

C. each     D. one