資源簡介

Unit 10 Air
單詞、短語
air，factory，clean，everywhere，smoke，fresh，alive，dirty，plant，balloon，hurt，tie，string，
cloth，keep……alive，plant trees，a piece of
句子
It keeps them high in the sky.
★詞匯突破★
1.air（名詞）空氣
The air is fresh.空氣清新。
2.factory(名詞）工廠
Look at the black smoke from the factory.看那邊黑煙來自于工廠。
3.clean(形容詞）干凈的；潔凈的
Trees keep the air clean.樹木使空氣干凈。
4.everywhere(副詞）到處；處處
I've looked everywhere for my pen，but I can't find it.我到處找我的筆，但是還是沒找到。
5.smoke（名詞）煙
Where is the smoke from 煙從哪里來？
6.fresh（形容詞）清新的
The air is so fresh here.這里的空氣如此清新。
7.alive(形容詞）活著的
We all need it to keep us alive.我們需要它來維持生命。
8.dirty(形容詞）臟的
It makes the air dirty.它把空氣都弄臟了。
9.plant(動詞）種植
We should plant more trees and keep the air clean.我們應(yīng)該多種點樹，讓空氣保持清新。
★句型突破★
It keeps them high in the sky.它使它們高高的在天上。
★知識拓展★
空氣污染
air pollution空氣污染
fog and haze霧霾
construction dust建筑粉塵
carbon emission 碳排放
vehicle exhaust汽車尾氣
harmful substances有害物質(zhì)
單選題
1. What keeps us alive （ ）
A. Water
B. Fire
C. Air
D. Earth
2. Where does the black smoke usually come from （ ）
A. Trees
B. Factories
C. Plants
D. Animals
3. What do trees do to the air （ ）
A. Make it dirty
B. Keep it clean
C. Make it hot
D. Make it cold
4. Which word means "everywhere" （ ）
A. Somewhere
B. Anywhere
C. Everywhere
D. Nowhere
5. What is the opposite of "fresh" （ ）
A. Dirty
B. Clean
C. Clear
D. Pure
6. What do we call the air that is not clean （ ）
A. Fresh air
B. Clean air
C. Dirty air
D. Pure air
7. What can we do to keep the air clean （ ）
A. Plant more trees
B. Build more factories
C. Drive more cars
D. Burn more wood
8. What is the main cause of air pollution （ ）
A. Planting trees
B. Breathing
C. Burning fossil fuels
D. Drinking water
9. Which of the following is not a source of air pollution （ ）
A. Vehicle exhaust
B. Construction dust
C. Carbon emission
D. Photosynthesis
10. What do we call the substances that are harmful to our health （ ）
A. Harmful substances
B. Useful substances
C. Natural substances
D. Organic substances
11. What do balloons need to keep them high in the sky （ ）
A. Air
B. Water
C. Fire
D. Earth
12. What does "keep...alive" mean （ ）
A. Make...die
B. Keep...living
C. Make...sleep
D. Make...stop
13. What do we call a place where things are made （ ）
A. School
B. Hospital
C. Factory
D. Restaurant
14. What do we call a piece of material used for covering or making things （ ）
A. Cloth
B. Wood
C. Stone
D. Metal
15. What do we call the process of putting trees into the ground to grow （ ）
A. Planting
B. Watering
C. Cutting
D. Burning
易錯知識點及練習(xí)
易錯知識點1: 形容詞辨析
易錯點: Clean和fresh的區(qū)別，dirty的反義詞。
練習(xí):
- The air is so ______ here. (fresh)
- It makes the air ______. (dirty)
易錯知識點2: 動詞短語的用法
易錯點: Keep...alive的意思。
練習(xí):
- We all need air to ______ us alive. (keep)
- Trees help to ______ the air clean. (keep)
答案及解析
1. C. Air (空氣維持我們的生命)
2. B. Factories (工廠通常會排放黑煙)
3. B. Keep it clean (樹木使空氣保持干凈)
4. C. Everywhere (everywhere表示“到處”)
5. A. Dirty (dirty是fresh的反義詞)
6. C. Dirty air (不干凈的空氣叫dirty air)
7. A. Plant more trees (多種樹可以保持空氣清潔)
8. C. Burning fossil fuels (燃燒化石燃料是空氣污染的主要原因)
9. D. Photosynthesis (光合作用不是空氣污染的來源)
10. A. Harmful substances (有害物質(zhì)對我們的健康有害)
11. A. Air (氣球需要空氣才能保持在天上)
12. B. Keep...living (keep...alive表示“保持……活著”)
13. C. Factory (工廠是制造東西的地方)
14. A. Cloth (cloth是一塊用來覆蓋或制作東西的材料)
15. A. Planting (把樹種到地里生長的過程叫planting)

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