Unit 3 Care for the Earth同步练习（4课时，含答案）

第二课时 一、单项选择。 (　　)1. This is _____ new school. A. we　　　　　　 B. our　　　　　　 C. us (　　)2. — _____ — Because I have a toothache. A. When do you see the doctor B. How do you see the doctor C. Why do you go to see the doctor (　　)3. We _____ make the air dirty. A. should B. shouldn't C. don't (　　)4. — Let's go out to play, Su Nan. — I'm sorry, I _____ do my homework first. A. have to B. can C. don't (　　)5. We should do _____ for our earth. A. something B. some C.what 二、看图, 用We should … 或We shouldn't … 写句子。 1. _____ 2. _____ 3. _____ 4. _____ 5. _____ 答案： 一、1. B　2. C　3. B　4. A　5. A 二、1. We shouldn't cut down trees. 2. We shouldn't pick flowers. 3. We should plant more trees. 4. We shouldn't waste water. 5. We should care for the animals.第四课时 一、 写出下列单词的动名词形式。 1. boat _____ 2. skate _____ 3. shop _____　　　　 4. swim _____　　 5. walk _____　　　 二、用所提示的单词或汉语, 回答下列问题。 1. What does Mr. Tiger eat every day (meat) _____ 2. How often do you read a book (four times a week) _____ 3. What do you play once a week (tennis) _____ 4. Why are you healthy (吃得好, 睡得好) _____ 5. How many books do you buy on the weekend (两本) _____ 答案： 一、1. boating　2. skating　3. shopping 4. swimming　5. walking 二、1. Mr. Tiger eats meat every day. 2. I read a book four times a week. 3. I play tennis once a week. 4. Because I eat well and sleep well. 5. I buy two books on the weekend.Unit 3 Care for the Earth 第一课时 一、 英汉互译。 1. 采;摘 _____ 2. dirty _____　　 3. 浪费 _____　 4. drive _____　　　 5. 认为 _____　　　 6. more _____　　　 二、 连线。 pick flowers　　　　　　　　　　　 浪费水 make the air dirty 开车 waste water 摘花 drive a car 砍伐树木 cut down trees 污染空气 答案： 一、1. pick　2. 脏的　3. waste 4. 驾驶;开(车)　5. think　6. 更多的 二、提示: pick flowers—摘花 make the air dirty—污染空气 waste water—浪费水 drive a car—开车 cut down trees—砍伐树木第三课时 一、读一读, 判断下列单词与其汉语意思是(√)否( )相符。 (　　)1. well 将要　　　 (　　)2. twice 两次　　 　(　　)3. sleep 睡觉 (　　)4. once 一个 (　　)5. night 夜晚 二、英汉互译。 1. once a month _____ 2. 每星期三次 _____ 　　　　 3. do well in _____　 4. 睡得好 _____ 　　　 5. how many _____　　　 三、 用单词的正确形式填空。 1. We read many _____(book) every day. 2. I often play tennis _____(two) a week. 3. She plays ping-pong_____(good). 4. My mom doesn’t like cats _____(and) dogs. 5. We should play sports to keep _____(health). 答案： 一、1. 　2. √　3. √　 4. 　5. √ 二、1. 每月一次2. three times a week 3. 在……做得好4. sleep well 5. 多少 三、1. books　2. twice　3. well　4. or　5. healthy ... ...