内容正文:
Unit 8 Our Blue Planet Lesson 1 Function 课后练习 一、词型转换 1. planet(复数)_ _2. long(名词)_ _ 3. fresh(反义词)_ _ 二、短语翻译 1. 蓝色星球_ _ 2. 淡水湖_ _ 3. 节约用水_ _ 4. 在地球上_ _ 5. 数百万的_ _ 三、根据句意及首字母或汉语提示补全单词 1. The e_ is our home. We should protect it. 2. There are many p_ in the solar system. 3. The Nile River is the l_ river in the world. 4. We need to save every d_ of water. 5. Most of the water on the earth is s_ water. 四、用所给词的正确形式填空 1. There _ (be) a lot of water on the earth. 2. We should try our best _ (save) water. 3. The water vapor _ (go) up into the sky. 4. When water vapor _ (get) cold, it becomes water again. 5. Millions of water _ (drop) come together to form clouds. 五、句型转换 1. The Yangtze River is 6,300 kilometers long. (对划线部分提问) _ _ is the Yangtze River? 2. There is a beautiful lake on the earth. (改为一般疑问句) _ _ a beautiful lake on the earth? 3. We can only use about 1% of the water on the earth. (对划线部分提问) _ _ water can we use on the earth? 4. The water is very important to us. (改为感叹句) _ _ the water is to us! 5. We should save water. (改为同义句) We _ _ to save water. 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 4._ almost everywhere. Even in the 5._ part of the world, there is some water in the air. You can not see it 6._ feel it when it is part of the air. The water 7._ seas, rivers is a liquid (液体). The water in the air is not a liquid 8._ a gas (气体). Clouds are made of water. They are made of very small 9._ of water. Water, you have 10._ found, is very useful, so we must 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. ourself D. ours ( ) 4. A. can find B. finds C. is found D. are found ( ) 5. A. dry B. drier C. driest D. most dry ( ) 6. A. nor B. and C. or D. then ( ) 7. A. in B. on C. of D. to ( ) 8. A. but B. and C. then D. also ( ) 9. A. drops B. pieces C. bits D. pairs ( ) 10. A. never B. ever C. just D. always 七、任务型阅读 阅读短文,根据短文内容回答问题。 Water is all around us. Water is in the ocean. Water is in the lakes and rivers. Water is in the air. There is more water than land on the earth. All things must have water to live. The plants must have it. The animals must have it. We must have it, too. We cannot live without drinking water. Sometimes, we do not have all the water that we need. The land will dry up without water. Sometimes, there can be too much water in the land. If it rains very, very hard, the rain water will run down the hill. It takes some of the land with it when it runs down the hills. It is called erosion when the water takes the land away. Water on the earth will never be used up. It goes from the ocean to the air to make clouds. Then, it falls from the clouds down to the land. It runs off the land and out to the ocean again. The clouds in the air are made of water. Sometimes the water falls down from the clouds. It makes rain. The rain falls onto the land. Some of it goes into the ground. Some of it washes down and goes back into the ocean. Some water that is not rain or snow falls down from the clouds. Some of this water is sleet (雨夹雪). The sleet is made of little pieces of ice. Some water that is not rain or snow or sleet falls down from the clouds. Some of this water is hail (冰雹). The hail is made of ice balls. 1. What must all things have to live? 2. What is it called when the water takes the land away? 3. Where does the water in the air come from? 4. What are the clouds in the air made of? 5. What is hail made of? 参考答案: 一、1. planets 2. length 3. salty 二、1. the blue planet 2. freshwater lake 3. save water 4. on the earth 5. millions of 三、1. earth 2. planets 3. longest 4. drop 5. sea 四、1. is 2. to save 3. goes 4. gets 5. drops 五、1. How long 2. Is there 3. How much 4. How important 5. ought to 六、1 - 5 AD BCC 6 - 10 CAAAC 七、1. All things must have water to live. 2. It is called erosion when the water takes the land away. 3. It goes from the ocean to the air to make clouds. 4. The clouds in the air are made of water. 5. The hail is made of ice balls. 学科网(北京)股份有限公司 $$