1、Save Our World,Unit 8,Lets Clean Up!,Lesson 43,pollution/plun/n.污染,知識點,3,考向,pollution是不可數(shù)名詞，一般用污染源或者被污染物pollution構成表示各種污染的名稱。 eg：light pollution 光污染 air pollution 空氣污染,拓展,pollution的動詞形式為pollute，意為“污染；弄臟”，常用于pollute sth. with/by sth.結構中。 eg：We should not pollute our rivers with waste. 我們不應該用廢棄物污染我們的河

2、流。,典例,To make a green world, we should try to reduce air _ (pollute) by walking more and driving less.(南通),pollution,Air is polluted. And air pollution is serious, especially in big cities.空氣被污染了?？諝馕廴臼菄乐氐?，尤其是在大城市。(熱點）,魔法記憶,clean up把打掃干凈,知識點,4,考向,clean up是由動詞加上副詞構成的短語，所跟的賓語若是代詞，要放在動詞和副詞之間；如果賓語是名詞，可放在

3、兩者之間，也可放在副詞up之后。 eg：You could help clean up the city parks. 你可以幫助清掃城市公園。 Look at your desk！Clean it up! 看看你的桌子吧！把它清理干凈！,典例,Many volunteers will help to _ the city parks next Friday.(廈門) Agive up Bpick up Cclean up,【點撥】采用短語辨析法。句意：許多志愿者下周五將幫忙打掃城市公園。give up 放棄；pick up撿起；clean up把打掃干凈。,C,a bit of一點兒,知識點

4、,5,考向一,a bit of作定語修飾不可數(shù)名詞，相當于a little。 eg：He knows a bit of/a little English. 他懂一點兒英語。,典例,Can you speak Chinese, Steve? Yes, only _. I have been in China for only one month.(云南) Afew Ba few Clittle Da little,D,考向二【易錯點】,a bit“有點兒；一點兒”，是用來說明程度的副詞短語，在句中作狀語，可修飾動詞、形容詞、副詞或比較級，相當于a little。 eg：This pair of

5、shoes is a bit/a little expensive. 這雙鞋有點兒貴。 The speaker spoke up a bit/a little so as to make himself heard more clearly. 演講者把嗓門提高了一點兒，以便使別人聽得更清楚。,explain/ksplen/v.解釋,知識點,6,考向【重點】,explain的用法,典例,Sally loves chocolate. That _ (explain) why its hard for her to lose weight.(無錫),explains,一、根據(jù)句意及首字母提示完成單詞

6、 1. Air p_ is bad for our health. 2. Im hungry. I want to eat a b_ of bread. 3. He was busy reading. He didnt pay a_ to the teacher. 4. The teacher kept e_ the use of the idiom to me until I understood it. (福州) 5. Please pick up the r_and throw it into the dustbin.,ollution,it,ttention,xplaining,ubb

7、ish,二、從方框中選擇適當?shù)脑~并用其適當形式填空 6. Can you help me to_the classroom? 7. _ that bag on the floor. 8. If a river is _, farmers cant use the water for their crops. (衢州) 9. I_ tell him the truth. 10. Many people in the world watched the 2014 FIFA World Cup. It _.,clean up,Pick up,polluted,agree to,drew their attention,本節(jié)課我們主要學習