一、用方框中所给词的适当形式填空。
repair collect strange brush advantage tooth
1. Larry is his shoes to keep them clean now.
2. Sam usually toys and keeps them in boxes.
3. People need to brush their after eating sweet food.
4. We met some on our way to the forest. They seemed lost.
5. There are many of reading books.
6. My father is good at bikes.

1. brushing 2. collects 3. teeth
4. strangers 5. advantages 6. repairing

二、句型转换。
1. I spent 100 yuan on this pair of trousers. (对画线部分提问)
you spend on this pair of trousers?
2. She needs to buy some vegetables for dinner. (改为否定句)
She to buy vegetables for dinner.
3. They often go to the park on Sundays. (对画线部分提问)
they often do on Sundays?
4. This is a very interesting book. (改为what引导的感叹句)
!
5. Li Ming plans to visit his grandparents this weekend. (改为同义句)
Li Ming visit his grandparents this weekend.
6. We should put the books in order in the library. (对画线部分提问)
we put the books in the library?

1. How much did 2. doesn't need; any
3. What do 4. What an interesting book this is 5. is going to 6. How should

三、阅读理解。
Most of you may think of clams（蛤蜊）as part of a big meal. But these little things can do a more important job: testing the cleanness of people’s drinking water!
The main water station in Poland（波兰）supplies（供应）water to millions of people there. They make eight clams test the drinking water. Because clams have an amazing sense of finding water pollution. If the water is not clean enough, they close their shells（壳）. So, the water station got the clams and connected their shells to a computer system. When four or more clams close their shells at the same time, an alarm will make a sound.
Clams will get used to dirty water in several months, so they only work for three months. People will get new clams to take over the job. The water station said this could work well to test water quality（质量）.
There’s a film on this story, called Fat Kathy. The film shows how wildlife helps people around the world, said Bored Panda, a leading art and pop culture magazine.
()1. What do we know about the water station in Paragraph 2?
A. It is the biggest water station in the world.
B. It uses clams to test water quality.
C. It sells clams to millions of people.
D. It will build a home for clams.
()2. What will clams do if there is water pollution?
A. They will not drink any water.
B. They will open their shells.
C. They will close their shells.
D. They will clean each other’s shells.
()3. Why did the station connect clams’ shells to a computer system?
A. To make the clams stay together.
B. To find the clams.
C. To check on their health.
D. To create an alarm.
()4. How does the water station stop the clams from getting used to water pollution?
A. By making them work for a short time.
B. By keeping them at other stations.
C. By changing the water quality at the station.
D. By making them do different kinds of jobs.
()5. What do we know from the last paragraph?
A. Good stories make good films.
B. People make the world wonderful.
C. Wildlife can help people live better.
D. The water pollution is getting worse.

1. B 2. C 3. D 4. A 5. C