初中英语Section A教学演示ppt课件

这是一份初中英语Section A教学演示ppt课件，共26页。PPT课件主要包含了Objectives，Free talk，Lead-in，n 煤炭，n 垃圾箱，Lead in，Practice，rubbish，fish，litter等内容，欢迎下载使用。
T talk abut air pllutin, water pllutin and sund pllutin.T think abut ways f prtecting the envirnment.T learn the new wrds:
1. Hw many kinds f pllutin are there in ur daily life?2. Why shuld we prtect the envirnment?3. What can we d t save the earth?
The earth is plluted.
air pllutin
The factries that burn cal pllutethe air with a lt f black smke.
Factries put waste int the river.
water pllutin
nise pllutin
There are mre cars n the rad.
litter v. 乱扔 n. 垃圾Rubbish， waste垃圾，废弃物
Peple shuld thrw away litter in the bin.
land pllutin
Here are sme wrds related t different kinds f pllutin. Write them in the bx belw. Then add mre wrds.
lud music cars rubbish planes littering ships factries smking building huses mbile phnes
lud music, planes, building huses, mbile phnes
cars, factries, smking, building huses
rubbish, littering, ships, factries
Nw try t add mre wrds.
machinescrwdsvehicles
burningpwer plants nuclear dispsal
sewageindustrial waste pesticides
What des this picture shw?
Water pllutin has becme a serius prblem.
Here are sme wrds related t different kinds f pllutin. Write them in the bx belw. Then add mre wrds.
carsfactriessmkingbuilding huses
lud musicplanesbuilding huses mbile phnes
rubbishlitteringshipsfactries
Listen and cmplete the sentences.
really dirty
Rle-play the cnversatin.
Listen t the interview. Circle the kinds f pllutin that Jasn and Susan talk abut.
A. land pllutin B. air pllutin C. nise pllutin D. water pllutin
Listen again and cmplete the sentences.
1. The air is badly plluted because there are __________ n the rad these days.2. Factries that burn cal als _______ the air with a lt f black smke.3. There is als t much rubbish and waste. Peple ________________ things every day.4. Peple are als littering in ____________ like parks. This is turning beautiful places int ugly nes.
are thrwing away
public places
Listen again and cmplete the sentences.
1. The air is badly plluted because there are ___________ n the rad these days.2. Factries that burn cal als ________ the air with a lt f black smke.
3. There is als t much rubbish and waste. Peple ________________things every day.4. Peple are als littering in ______________ like parks. This is turning beautiful places int ugly nes.
turn… int… 把……变成……
Use the infrmatin in 2a and 2b t rle-play cnversatins between Jasn and Susan.
A: The air/river/land has becme really plluted rund here. I’m getting very wrried/nervus. B: Yes, I used t... A: The prblem is that …
there’re mre cars n the rad these days. factries that burn cal als pllute the air with a lt f black smke. there is als t much rubbish and waste. peple are thrwing away things every day.… …
Hw t cut dwn air pllutin?
take the bus r subway instead f driving.
ride a bike.
Never take wden chpsticks r plastic frk.
remember t thrw rubbish in the bins.
keep public places clean and beautiful.
Our actins can make a difference and lead t a better future!
Read the dialgue in 2d, then cmplete the mind map in pairs.
Hw t cut dwn waste pllutin?
bring a bag t g shpping.
1.try 的用法try t d sth.意为“尽力做某事”。We are trying t save the earth.我们正尽力的挽救地球。和try搭配的词组①try ding sth.意为“试着做某事”。②try n意为“试穿”。②try ut意为“尝试,试验”。③try ne’s best t d sth.意为“竭尽全力做某事”。相当于d ne’s best t d sth.⑤have a try意为“试一试”。
2.advantage n.优点；有利条件【注意】There are ther advantages f bike riding.骑自行车还有其它的优点。【注释】advantage的反义词是disadvantage,意为“缺点，不利条件”。【搭配】have the advantage f…具有……有利条件；t ne’s advantage对某人有利
have the advantage f
T her advantage
3.cst v.花费 n.花费；价钱【注意】It’s gd fr health and it desn’t cst anything!它对健康有好处，并且它没有花费任何东西！It tk me an hur t finish my hmewrk yesterday.我昨天花了一个小时完成我的家庭作业。I spend ten dllars buying the dictinary.我花十美元买了这本词典。He paid five dllars fr the meal.他付了五美元的饭钱。【注释】cst的过去式和过去分词均为cst,其主语常是物。
【辨析】spend, pay与take（1）spend意为“花费”，主语常是“人”。常用于spend…n sth./spend…(in)ding sth.结构中。（2）pay意为“花费”，主语常是“人”。常用搭配为pay fr，意为“付费；付出代价”。（3）take表示“花费”时的常用句型：It takes sb. sme time/mney t d sth.意为“花费某人一些时间/金钱做某事”。