内容正文:
Unit 10 Air
Period 1 Listen and say, Look and learn & Ask and answer(分层作业)
基础练
一、写出句子中与所给例词同类的词。
1. important I think air is helpful to all living things. __________
2. sky Look at the bird flying in the cloud. __________
3. keep Air makes the balloon high in the sky. __________
4. everywhere The fresh air is around our school. __________
5. them We need it to stay alive. __________
二、根据中文或首字母提示填空
1. The ______ (工厂) produces a lot of black smoke.
2. Too much ______ (烟雾) will make the air ______ (脏的).
3. We should try to keep the air ______ (干净的).
4. Air has no s______ or shape.
5. Air is e______ around us.
三、单项选择。
( )1. Air has no ______.
A. smell B. colour C. both A and B
( )2. Air can keep ______ high in the sky.
A. kites B. balloons C. both A and B
( )3. ______ makes the air dirty.
A. Factory smoke B. Green trees C. Fresh wind
( )4. We need air to ______.
A. keep alive B. watch films C. play games
提升练
四、选词填空
词汇:important, dirty, clean, everywhere, helpful
1. Air is ______ to every person and animal.
2. The smoke from cars makes the air ______.
3. Planting more trees can make the air ______.
4. You can find air ______ in the world.
5. Fresh air is ______ for our health.
五、按要求完成句子。
1. Air keeps kites high in the sky.(对画线部分提问)
_______ _______ air keep high in the sky?
2. It is important to all plants.(改为一般疑问句)
_______ _______ important to all plants?
3. The smoke makes the air dirty.(对画线部分提问)
_______ _______ the smoke make the air?
4. We need air to keep alive.(改为否定句)
We _______ _______ air to keep alive.
5. Air is everywhere.(改为同义句)
Air is _______ _______ us.
六、给下列句子选择恰当的答句。
答句:
A. No, I'd like to stay at home. B. It's about air.
C. We can plant more trees. D. No, we can't.
E. It's air. F. No, it doesn't.
( )1. What is it?
( )2. Does air have any colour?
( )3. Can we see air?
( )4. Why is air important?
( )5. How can we keep the air clean?
拓展练
七、阅读材料,选择正确的答案。
Air is very important to us. We can’t live without it. It has no smell or shape. We can’t see it, but we can feel it. Some factories and cars make smoke. The smoke makes the air dirty. To keep the air clean, we can plant more trees. We can also walk or ride bikes instead of taking cars.
( )1. We can’t live without ______.
A. water B. air C. food
( )2. What makes the air dirty?
A. Factory smoke B. Green trees C. Fresh wind
( )3. How can we keep the air clean?
A. Cut down trees B. Take more cars C. Plant more trees
参考解析
基础练
一、写出同类词。
1. helpful(与 important 同为形容词,描述事物的作用)
2. cloud(与 sky 同为表示天空相关的名词)
3. makes(与 keep 同为动词,表动作)
4. around(与 everywhere 同为表示范围 / 位置的词)
5. it(与 them 同为宾格代词)
二、根据中文或首字母填空。
1. factory(“工厂” 的英文表述)
2. smoke; dirty(“烟雾” 对应 smoke,“脏的” 对应 dirty)
3. clean(“干净的” 的英文表述)
4. smell(根据 Air 的特点 “no smell or shape”,填 smell)
5. everywhere(根据 Air 的特点 “it is everywhere”,填 everywhere)
三、单项选择。
1. C(Air 的特点是 “no smell or shape”,既无气味也无颜色)
2. C(Air 能让风筝、气球等停留在高空)
3. A(工厂烟雾会污染空气,树木和清风会净化空气)
4. A(我们需要空气维持生命)
提升练
四、选词填空。
1. important(空气对所有生物 “重要”)
2. dirty(汽车烟雾会让空气变 “脏”)
3. clean(种树能让空气变 “干净”)
4. everywhere(空气 “遍布” 世界)
5. helpful(新鲜空气对健康 “有益”)
五、按要求完成句子。
1. What does(对事物 “kites” 提问,用 What,主语 air 是不可数名词,助动词用 does)
2. Is it(改为一般疑问句,将 be 动词 is 提前)
3. How does(对状态 “dirty” 提问,用 How,主语 smoke 是不可数名词,助动词用 does)
4. don’t need(否定句,在实义动词 need 前加 don’t)
5. around(“everywhere” 可同义替换为 “around us”,表示 “在我们周围”)
六、选答句。
1. E(回答 “What is it?”,对应 “是空气”)
2. F(回答 “Does air have any colour?”,空气无颜色,用 No)
3. D(回答 “Can we see air?”,空气不可见,用 No)
4. B(回答 “Why is air important?”,对应 “它和空气有关”)
5. C(回答 “How can we keep the air clean?”,对应 “种树” 的方法)
拓展练
七、阅读材料选答案。
1. B(短文第一句提到 “We can’t live without it”,it 指代 air)
2. A(短文提到 “Some factories and cars make smoke. The smoke makes the air dirty”)
3. C(短文提到 “To keep the air clean, we can plant more trees”)
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