9. Why do we have many high buildings? ____________________________________

10. Can you give a title for the passage? ______________

四、看图完成短文。

　　Could there be life on Mars?

　　You probably know a lot about the city you live in. You may even know some interesting facts about our earth. But how much do you know about M _______,the planet where many think there may be l_______?

　　For many years, people have studied Mars. They have sent instruments (仪器) and r_______ to the red planet. Some of them succeeded, but most f_______.

　　The first spacecraft (航天器),Mariner 4 from America, got a c _______look at Mars on November 28,1964.Mariner 4 showed Mars had a red surface with many big h _______.There were also signs that there had been w _______on Mars. Of course, scientists wouldn't miss the opportunity(机会)to send spacecraft to the red planet when it is so close to us.

　　NASA, National Aeronautics and Space Administration (美国国家宇航局),sent two robots to Mars in June and July. In January 2004,they will t_______ to Mars at some 12 000 miles per hour. The two robots will then begin a 3month s _______to look for evidence (证据) of water and life from Mars. X k B 1 . c o m

　　One day, humans will travel to Mars to have a even closer look at the earths red n _______.Maybe it could be you!

五、选词填空。

　　Won't,study,fewer,credit card,predictions,true

1.There _______ be any paper money.Everyone will have a _______ _______.

2.I think there will be _______ trees.

3.There were many famous _______ that never came _______.

4.Kids _______ go to school.They'll _______ at home on computers.

六．看图，完成下列对话。

1. A: Will people have _______ in their homes?

　B: Yes, _______ _______.I think every home will have one.

　A: _______ can they do in their homes?

　B: I think they can do all things.

　A: Well, I _______.Can they help their children do homework?

　B: Yes, they_______.

2. A: I think there will be more students in our school.

　B: Well, I _______ agree. But I think there will be fewer teachers.

　A:I _______.We will study on line.

3.A:What is that in the sky?

　　B: It's an _______.

　　A: How can she get there?

B: She takes a _______ _______.