1、Unit 12 The Earth 第二课时 习题一、写出下列单词。1.地方 2.需要 3. 有时候 4.来自 5.生活 二、按要求写单词。1 . dirty (中文)_ 2. does(原形)_ 3.healthy(名词)_ 4. factory(复数)_ 5. get(过去式) _ 三、根据句子意思,选择适当形式填空。1. We must （save）the Earth .2. We （应该）stop throwing rubbish into rivers.3. There are many （不同的）plants and animals 4. The Earth （get）sick.5
2、. Now people work together to （keep）the Earth clean and healthy.四、将下列句子翻译成英语。1.他们捡起垃圾。 2.地球是一个美丽的地方。 3.我们居住在地球上 4.有时候人们把垃圾扔进河流和海洋里。 5. 地球生病了。 五、按要求写句子。1. They recycle glass and paper.（改为一般疑问句） 2. They plant trees every year. （就划线部分提问） 3. There are rivers, oceans, land and forests.（改为否定句） 4. There ar
3、e many different plants and animals.（改为一般疑问句） 5. The Earth was very clean and beautiful in the past.（翻译句子） Unit 12 The Earth 第二课时答案一、【解析】该题考查单词的熟悉程度【答案】1 place 2. need 3.sometimes e from5. life【答案】1. 脏的 2.do 3. health 4. factories 5. got 三、【解析】考察学生的句意理解能力。【答案】1. save 2. should 3. different 4.gets 5.
4、 keep四、【答案】1.They pick up rubbish. 2.The Earth is a beautiful place. 3. We live on the Earth. 4. Sometimes people throw rubbish into rivers and oceans. 5. The Earth gets sick.五、【答案】1. Do they recycle glass and paper? 2. What do they do every year? 3. There arent rivers, oceans, land and forests.4. Are there many different plants or animals?5.过去的地球非常干净和漂亮。
