内容正文:
Unit 8 Our Blue Planet Lesson 2 Thinking skills
课后练习
一、词型转换
1. east(形容词)________2. million(复数形式)________
3. deep(名词)________4. long(名词)________
5. fresh(副词)________
二、短语翻译
1. 覆盖________2. 北冰洋海岸线________
3. 流经________4. 淡水湖________
5. 四大洋之一________
三、根据句意及首字母或汉语提示补全单词
1. The Changjiang River is about 6,300 k________ long.
2. The o________ covers about 71% of the earth's surface.
3. There are many fish in the f________ water.
4. The river runs t________ the city.
5. We should save every d________ of water.
四、用所给词的正确形式填空
1. The lake covers about 1,000 ________ (square) kilometers.
2. There are millions of ________ (fish) in the ocean.
3. The Nile River is one of the ________ (long) rivers in the world.
4. We use a comma every three digits from the right when the number is greater than 999. For example, 1,000,000 is one ________ (million).
5. Look! The water ________ (flow) into the river.
五、句型转换
1. The Pacific Ocean is very large and deep.(改为感叹句)
________ ________ and deep the Pacific Ocean is!
2. The lake is about 200 meters deep.(对划线部分提问)
________ ________ is the lake?
3. There is a lot of water on the earth.(改为否定句)
There ________ ________ water on the earth.
4. We can use water to do many things.(改为被动语态)
Water can ________ ________ to do many things.
5. The river runs through the city.(改为一般疑问句)
________ the river ________ through the city?
六、完形填空
Water is very important 1 living things. Without water there can be 2 life on earth. All animals and plants need water. Man also needs water. We need water to drink, to cook food and to clean 3 . Water is found almost everywhere. Even in the 4 part of the world, there is some water in the air. You can not see or feel it 5 it is part of the air. The water 6 seas and rivers is a liquid. The water in the air is not a liquid 7 a gas. Clouds are made of water. They are little 8 of water. When the water 9 , it is rain. Fallen snow is also water. You may 10 that water is very useful. So we should save water.
( )1. A. to B. of C. with D. by
( )2. A. none B. not C. much D. no
( )3. A. our B. ourselves C. ours D. us
( )4. A. dry B. drier C. driest D. most dry
( )5. A. when B. where C. because D. so
( )6. A. in B. on C. of D. to
( )7. A. or B. and C. then D. but
( )8. A. drops B. piece C. bits D. pairs
( )9. A. fall B. falls C. falling D. is falling
( )10. A. find B. look for C. discover D. look
七、任务型阅读
阅读短文,根据短文内容回答问题。
Water is very important to us. We cannot live without it. There is a lot of water on the earth, but we cannot use most of it. About 97.5% of the earth's water is salty. Most of the fresh water is snow and ice near the North and South Poles.
We can use only about one percent of the water on the earth. We use water from both lakes and rivers. Some of the water evaporates (蒸发)and then becomes rain. Of course we use rainwater for farms and other things. We use this water again and again.
Sometimes the earth's water is in the wrong place. There is a lot of rain in the tropics(热带地区), but it is difficult to have farms in the tropics. Most of the land there is not very rich. Some desert land is rich, but there is only a little water in the desert.
Water is a problem for many people in the world.
1. How much of the earth's water can we use?
2. Where is most of the fresh water?
3. Why is it difficult to have farms in the tropics?
4. What is a problem for many people in the world?
5. Can we live without water?
参考答案:
一、词型转换
1. eastern 2. millions 3. depth 4. length 5. freshly
二、短语翻译
1. cover 2. the coastline of the Arctic Ocean 3. run through
4. freshwater lake 5. one of the four oceans
三、根据句意及首字母或汉语提示补全单词
1. kilometers 2. ocean 3. freshwater 4. through 5. drop
四、用所给词的正确形式填空
1. square 2. fish 3. longest 4. million 5. is flowing
五、句型转换
1. How large 2. How deep 3. isn't much 4. be used 5. Does; run
六、完形填空
1 - 5 ADBCA 6 - 10 ADABA
七、任务型阅读
1. We can use only about one percent of the water on the earth.
2. Most of the fresh water is snow and ice near the North and South Poles.
3. Because most of the land there is not very rich.
4. Water is a problem for many people in the world.
5. No, we can't.
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