What is the sky?①This question is very difficult to answer.The sky is a space where there is nothing except the sun,the earth,the moon and all the stars.

Scientists can look at them through telescopes(望远镜) and,in this way,they can find out a great deal (许多,大量).They know many facts about the moon.For example,they know how big and how far away it is.②The moon is about 384,000 kilometers away from the earth.A plane cannot fly to the moon because there is no air.But a rocket can.

“How can a rocket fly?” If you want to know,get a balloon and then blow it up,until it is quite big.Do not tie up the neck of the balloon.Let it go!The balloon will fly off through the air very quickly.The air inside the balloon tries to get out through the neck of it,which pushes(推动)the balloon through the air.It does not need wings(翅膀)like a plane.③.Of course,the rocket is made of(由……制成) metal(金属).The metal must not be heavy but it must be very strong.There is a gas(气体) inside the rocket which is made very hot.When it rushes out of the rocket,the rocket is pushed up into the air.

1.将画线部分①改为同义句:

_________________________________________________________

2.将画线部分②译成汉语:

_________________________________________________________

3.从下面三个句子中选出一个,将其放回到画线部分③,使其上下文通顺合理。

A. This is what a rocket looks like

B. This is how a rocket works

C. This is why a rocket looks like a plane

4.请根据短文,判断正(T)误(F)。

In space there is only the sun,the earth and the moon.

5.请根据短文,判断正(T)误(F)。

The rocket can fly to the moon because it carries a gas inside it to push itself.

完成句子,每空一词

1.罗斯跑得很快,目的是能够赶上早班车。

Rose ran very fast __________ _______________ _____________ catch the early bus.

2.我去过北京好几次。我可以做你的向导。

I __________________ __________________ _________________ Beijing several times.I can be your guide.

3.——玛丽,你能帮我把书搬进教室吗?

——没问题。

—Mary,could you help me take the books into the classroom?

—_________________ _______________________.

4.父母经常会发现难以跟他们的孩子沟通。

Parents often find it difficult to_______________________ _______________________ their children.

5.到目前为止,我们国家已经向太空发射了很多卫星。

So far,our country _____________________ __________________________ many satellites into space.

书面表达

假如现在是2020年,你们学校组织了一次去火星的旅行。在火星上你们到处参观,举行聚会,与外星人(alien)通电话…… 总之,你们玩得很愉快。

请根据上述材料,以An Exciting Trip为题,以第一人称的形式描述一下你的火星之旅。要求表达准确,语法正确,行文连贯,可适当发挥,词数在80左右。

Jim has ______ useful book. ______ book is very interesting.

A. the; A B. an; A C. a; The D. an; The

— Are these books ______ ?

— No, they are not mine. They belong to _____.

A. your; her B. yours; her C. you; hers D. yours; she

—Did you know China is one of the oldest countries in the world?

—Yes, I did. It’s ________ than the US.

A. much older B. more older C. much elder D. more elder

The girl in purple is new here, so ________ people know her.

A. few B. a few  C. little D. a little

Mark, don't play computer games. Let's do .

A. useful anything B. anything useful

C. useful something D. something useful

If farmers _____________ trees and forests, giant pandas _____________ nowhere to live.

A. cut down, have B. will cut down, will have

C. will cut down; have D. cut down, will have

They___________ the Palace Museum next week.

A. hope me to visit B. hope visiting

C. hoped themselves to visit D. hope to visit