5. 人口的快速增长是一个大问题。

  is a big problem.

4. 这辆汽车以每小时90公里的速度前进。

The car is moving  90 kilometres per hour.

3. 许多人在春节时相聚。

  get together at the Spring Festival.

八、 根据所给汉语提示完成句子。(10分)

1. 这个游戏不但有趣还有挑战性。

The game is challenging  .

七、 根据短文内容及首字母提示完成单词。(10分) 

    Recently,a solar powered (太阳能动力的) plane took to the sky for the first time. It had passed an important test on the way to travel a 1 the world.

   The plane took o 2  from an airport in Switzerland (瑞士) at 45km an hour. It s 3 rose above the fields and into the sky.

  “There has never been an airplane of that kind that could fly —never an airplane so big,so light,u 4  so little energy ,” said Bertrand Piccard,a leader of the project.

   During the 90-minute f 5,the plane did several turns. It climbed nearly 1.6 km above the countryside.

   Engineers plan to test a night flight before July. Then they will use the r 6  of the tests to build a second plane. They plan to travel around the world in that plane next year.

  The plane f 7 at 70km an hour. That is faster than a bike and s 8  than a car. Piccard and pilot Andre Borschberg will take the plane around the world. The p 9  will keep the plane in the air for up to five days at a time.

 “We want to f 10  it day and night with no fuel (燃料) ，” Piccard said.

1. a   2. o   3. s   4. u   5. f 

6. r   7. f   8. s   9. p   10. f 

5. Look!The bus is  (crowd) with so many people. Let's wait for the next bus.

4. There is something wrong with my computer. Til have it   (fix) this afternoon.

3. One fifth of the students in our grade   (be) from other cities.

2. Peter turned off the computer after he finished  (write) an e-mail.

六、 用括号中所给词的适当形式填空。(5分)

1. You'd  better   (eat) less food before you go to bed.