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1、Unit 7 Protect the Earth提优练习（一）一、单词辩音，每组划线部分读音相同的写(S)，不同的写(D)( ) 1. woodfood( ) 2. hardwarm( ) 3. nearearth( ) 4. gateplastic( ) 5. schoolafternoon( ) 6. energyposter( ) 7. wastedsaved( ) 8. oilpoint( ) 8. mostcoal( ) 10. cookcool二、用所给词的适当形式填空1. We should_(eat) fruit and vegetables every day.2. Mr G
2、reen_(drink) too much yesterday.3. _(not waste) water, please.4. He starts_(draw).5. There are three plastic_(bottle) on the table.6. The books are_(use). They are good for your study.7. We use wood_(make) things.8. They cut down too many_(tree).9. One day, Bobby_(throw) a banana skin on the ground.
3、10. What can we do_(keep) our city clean?三、按要求改写句子1. They drink water every day.（改为一般疑问句）_they_water every day?2. We should not waste water.（改为同义句）We should_water.3. He comes from Shanghai.（对划线部分提问）_ _he_from?4. We should save energy because there is not too much energy.（对划线部分提问）_ _we save energy?5.
4、 They put it on the wall.（对划线部分提问）_ _they put it?6. It is a nice poster.（改为感叹句）_ _nice poster!7. Our energy comes from coal and oil.（对划线部分提问）_8. We should talk loudly in class.（改为否定句）_Unit 7 Protect the Earth提优练习（二）一、根据中文意思将句子补充完整1. 我们不应该太多地开车，因为小汽车使用太多的能源。We shouldnt_too_because cars_a lot of_.2. 塑
5、料对地球有坏处。Plastic is_ _the Earth.3. 我们用木头制作桌椅和许多其他东西。We_wood_ _tables, _and_other things.4. 我们不应该使用太多的塑料袋和塑料瓶。We_ _too_ _bags or bottles.5. 太多可乐对我们身体健康是有害的。_ _cola_ _ _our health.6. 我们每天用水清洗东西。We_ _to_ _every day.7. 我们怎样才能再利用这些东西呢？_can we reuse these_?8. 地上有太多的塑料袋。There are_ _plastic_on the ground.9.
6、我们不应该砍伐太多的树木，因为树木帮助净化空气。We_cut down too_trees because trees help_the air clean.10. 为了保护地球，我们不应该开太多车。因为开车需要耗费石油。_protect the_, we_ _too much.Because we_oil_drive cars.二、根据要求改写句子1. It means “No eating or drinking”.（对划线部分提问）_2. We use too many plastic bags and bottles.（改为否定句）_3. We use wood to make tab
7、les.（对划线部分提问）_4. Wood comes from trees.（改为一般疑问句）_5. People should save energy because theres not much energy.（对划线部分提问）_6.You shouldnt waste water.（同义句）_7. We should move some factories away from our city.（对划线部分提问）_8. Billy should eat a lot of vegetables to keep healthy.（对划线部分提问）_9. They should be careful in the forest.（对划线部分提问）_
