人教新目标 (Go for it) 版八年级下册Section A授课课件ppt

这是一份人教新目标 (Go for it) 版八年级下册Section A授课课件ppt，共50页。PPT课件主要包含了Lead in，Milk，Bamboo ，Huge，higher，highest，longer，longest，crowded，stronger等内容，欢迎下载使用。

What’s yur favrite animal?Why d yu like it?
An elephant weighs 5,000 kils.
An elephant is 350 cm tall.
It eats 150 kils f fd a day.
Use the language in the bx t help yu make sentences.
A panda weighs 100 kils.
A panda is 150 cm tall.(standing n tw legs)
It eats 10 kils f fd a day.
Example sentence:This elephant weighs many times mre than this panda.(200 cm taller/shrter, weigh much mre/less, eat much mre/less, eat many times mre)
1b Listen and check (√)the numbers yu hear.
_____ 100 ______16 ______20 ______50_____ 120 ______0.1 ______0.2 _____150
1c Listen again and cmplete the sentences.
1. At birth , a baby panda is abut _____t ______ kils.2. At birth, a baby panda is abut ______cm lng.3. A baby panda is nt black. It is _____ and it has n _______.4. A panda can live up t _____t _____ years.
1d Take turns telling yur classmates abut pandas.A: A baby panda cannt see.B: An adult panda weighs many times mre than a baby panda.
2b Scan the article t find ut what these numbers mean:10, 12, 200, 2,0000.
2c Scan the article again and write shrt answers t the questins. 1. What is Lin Wei’s jb?2. What d the baby pandas eat fr breakfast?3. What d adult pandas eat?4. Why are pandas endangered?5. What is ne way f saving pandas?
She is a panda keeper.
Because there was less bamb fr the pandas.
The children sing sngs r make artwrk abut pandas and ther wild animals.
2d Cmplete the sentences using wrds and phrases frm the passage.
children in cities
Chinese gvernment
planting mre bamb
3a Read the fllwing wrds ad phrases abut whales. Put them in the crrect place in the chart.
Live in the sea.
Eat small fish and ther sea life.
Sing sngs and jump high ut f the water.
Humans catch… and whales parts …
Rules …and stp…
3b Write a paragraph abut whales and why they need t be prtected . Include all f the infrmatin in 3a. Then make a pster.
Whales are … They live in … They eat … They can … One interesting fact is... . Anther interesting fact is... Sme kinds f whales are in danger shuld prtect whales think peple shuld/shuldn’t...
mre dangerus
mst dangerus
Grammar Fcus:
1.形容词比较级和最高级的用法：让我们记住这首口诀吧。没有比较用原级，两者相比比较级，三者以上最高级。 动词后加原级， than句子比较级, the字在前最高级, 碰上f 和in短语,千万别忘最高级。 2.名称 范围 标志词原级 =1 very, s比较级 =2 than 最高级 =3 in, f 短语
1. This elephant weighs many times mre than this panda. 这头大象比这只大熊猫重很多倍。【自主领悟】(1)weigh是动词, 意为“有……重, 重……”。weigh many times mre than. . . 意为“比……重很多倍”, time在此表示倍数。(2)表示两倍用twice, 三倍(及以上)用“基数词+times”。若要表述“比……倍还要多”可在倍数前加ver, mre than。
【归纳拓展】倍数的三种常用表达法(1)A+be+倍数+as+形容词/副词原级+as + B。例如: A is fur times as strng as B. A比B强壮3倍。(2)A+be+倍数+形容词/副词比较级+than + B。例如: A is mre than ten times bigger than B. A比B大10倍还多。
(3)A+be+倍数+计量名词+f + B。例如: Asia is fur times the size f the Eurpe. 亚洲是欧洲的四倍大。
【活学活用】 ①你的房间是我的两倍大。Yur rm is______ ________ _______ __________mine. ②猎豹跑得比人快6倍还不止。A cheetah runs mre than ______ ________ _______ __________ ________a man. =A cheetah runs ver ______ ________ _______ __________ 　　　　　　　　　　　　　a man. 答案: ①twice as large/big as②six times as fast as; six times faster than
2. At birth, a baby panda is abut 0. 1 t 0. 2 kils. 刚出生时的大熊猫大约0. 1到0. 2千克。【自主领悟】birth是名词, 意为“出生, 发育”, 常用短语为: at birth意为“出生时”, give birth t意为“生; 引起, 产生”, date f birth意为“出生日期”。
【活学活用】 ①小袋鼠出生时在它妈妈的育儿袋里。_______ _______, a baby kangar is in its mther’s puch. ②著名的女演员姚晨生了一个健康的男孩。Ya Chen, a famus actress _______ _______ _______ a healthy by. 答案: ①At birth　②gave birth t
3. Adult pandas spend mre than 12 hurs a day eating abut 10 kils f bamb. 成年大熊猫一天花多于12个小时吃10千克竹子。【自主领悟】spend是及物动词, 意为“花费”。常用短语为: spend. . . (in)ding sth. /n sth. 意为“在(做)某事上花费(时间/金钱)”。例如: Mike spends frty minutes ding his hmewrk every evening. 迈克每天晚上花费四十分钟做作业。
【用法辨析】spend/pay/cst/take表示“花费”
【巧学助记】辨析spend/cst/take/pay表示“花费”的技巧在于: 一看主语(spend, pay主语是人; cst, take主语是物); 二看花费时间还是金钱(cst, pay表示花钱; take表示花时间; spend既可表示花费时间也可表示花费金钱), 三看句式结构。
【活学活用】 选词填空: spend/pay/cst/take。①He　　　　　t much time playing cmputer games last summer vacatin. ②It　　　　　me abut half an hur t walk t schl every day. ③—Hw much did yu　　　　　fr the CD player? —Tw hundred yuan. ④The watch she bught yesterday　　　　　her fifty dllars. 答案: ①spent　②takes　③pay　④cst
4. Scientists say there are nw fewer than 2, 000 pandas living in the remaining frests. 科学家们说现在不到2 000只大熊猫生活在剩下的森林里。
【自主领悟】(1)“there be +. . . +ding”表示“有……正在做……”, 谓语动词be要符合就近原则。例如: There are quite a few rbts wrking in this factry. 有许多机器人正在这家工厂工作。(2)remaining为形容词, 意为“剩余的, 遗留的”, 常在句中作定语。例如: I bught a pen with the remaining mney. 我用剩下的钱买了一支钢笔。
【用法辨析】remain和leave的区别
【活学活用】 ①飞机晚点了, 机场有很多人在等飞机。The plane is late; ________ ________many peple ________ fr the plane at the airprt. ②唯一遗留的问题是我们怎样能筹集到钱。The nly ________ ________ is hw we can raise the mney. ③杰克昨天把书落在学校里了。Jack ________ his bk ________ ________ yesterday. 答案: ①there are; waiting　②remaining questin③left; at schl
5. Teaching children is ne way t help save pandas. 教育孩子们是保护大熊猫的一种方式。【自主领悟】teaching children是动名词短语, 在句中作主语, 其后谓语动词用单数形式。例如: Wrking as a prfessinal athlete is a difficult jb. 做一名职业运动员是份辛苦的工作。
【活学活用】 ①读报能提高你的阅读技能。　　　　　 　　　　　can imprve yur reading skills. ②吃水果和蔬菜有益健康。Eating fruits and vegetables　　　　　gd fr health. 答案: ①Reading newspapers　②is
6. We shuld prtect whales frm water pllutin. 我们应该保护鲸鱼免受水污染。【自主领悟】prtect是及物动词, 意为“保护, 保卫”; prtectin是名词, 意为“保护”, 常用短语为prtect. . . frm. . . 意为“保护……免受……的侵害或侵犯”。例如: Everyne shuld prtect the envirnment frm pllutin. 每个人都应该保护环境免受污染。
【温馨提示】(1)prevent/stp/keep. . . frm ding. . . “阻止……做……; 阻止……的发生”。(2)prevent/stp sb. frm ding sth. 用法相同, 在主动语态中介词frm可以省略, 被动语态中不能省略。keep sb. frm ding sth. 中的frm无论在主动语态中还是在被动语态中都不能省略。
【活学活用】 ①他抬起胳膊, 保护他的孩子免受伤害。He raised his arm t _________his child _________ hurt. ②我们应该多植树以阻止沙尘暴的发生。We shuld plant mre trees t _________ the sandstrm _________. 答案: ①prtect; frm　②prevent/stp; (frm) happening
7. Sme kinds f whales are in danger because humans catch whales fr meat, fat and il. 因为人们为了得到肉、脂肪和食用油而捕杀鲸鱼, 一些种类的鲸鱼正处在危险中。【自主领悟】be in danger是介词短语, 意为“处在危险中”; 其反义短语为: be ut f danger意为“脱离危险”, 在此, danger是不可数名词, 意为“危险”, 其形容词形式为dangerus。
【活学活用】 ①Sme wild animals are　　　　　 　　　　　(处在危险中)because f the fld. ②It’s　　　　　(danger) t play n the street. 答案: ①in danger　②dangerus
Ⅰ. 单项选择。1. The Oriental Pearl Twer(东方明珠塔)is　　　　　than the Eiffel Twer(埃菲尔铁塔). A. 144 meters higher B. 144 meters highC. 144-meter higher D. 144-meter-higher2. An adult panda eats many times　　　　　a baby panda. A. mre B. lessC. mre than D. less than
3. A giraffe can live up　　　　　30 years. A. t B. in C. at D. fr4. The light travels　　　　　the sund. A. 8. 8×105time as fast asB. 8. 8×105times as faster asC. 8. 8×105time as faster asD. 8. 8×105times as fast as
5. The tiger weighs　　　　　mre than the cat. A. much B. littleC. much time D. many time
Ⅱ. 用所给词的适当形式填空1. It’s 12: 00 p. m. Mst students are still　　　　　(wake). 2. He jumped with　　　　　(excite) after hearing the gd news. 3. His grandpa had a lt f　　　　　(ill) last year. 4. We shuld try t save the　　　　　(endanger) animals. 5. 　　　　　(walk) n the mn is nt as easy as n the earth. 答案: 1. awake　2. excitement　3. illnesses　4. endangered5. Walking
6. China is a lt　　　　　(crwded) than Canada. 7. An adult elephant weighs many　　　　　(time) mre than a baby elephant. 8. Accrding t a survey, the nise will prevent the baby rabbits frm　　　　　(grw) nrmally. 9. The ld man stpped　　　　　(write) music last year. 10. The plice give us s much　　　　　(prtect). 答案: 6. mre crwded　7. times　8. grwing　9. writing　10. prtectin
Ⅲ. 完成句子1. 老师正在为她的生日准备礼物。The teacher is __________the gifts __________ her birthday. 2. 昨晚医生们花费了六个小时拯救这个小孩。Dctrs __________ six hurs __________ the child last night. 3. 现在有许多老人仍住在山里。There __________ many ld peple __________ in the muntains nw. 答案: 1. preparing; fr　2. spent; saving　3. are; living
4. 政府每年派许多老师到山村教学。The gvernment __________ many teachers __________ teach in the muntain villages every year. 5. 以前, 很多人吃不饱而死于饥饿。Once upn a time, many peple didn’t eat enugh fd and __________ __________ hunger. 答案: 4. sends; t　5. died frm
Ⅳ. 选词填空。 stp, sea, jump, teeth, fr, prtect, rules, danger, huge, like　　Whales are　1　animals. Sme f them have　2　. They live in the　3　. They eat small fish and ther sea life. They can　4　high ut f the water and they can sing sngs. They are s cute. Hwever, sme kinds f them are in　5　because humans catch whales　6　meat, fat and il. Whale parts sld t make things　7　candles and sap. Besides,
peple put rubbish int the sea. We shuld　8　whales frm water pllutin. I think peple shuld make　9　n whale prtectin and　10　putting rubbish int the sea. 答案: 1. huge　2. teeth　3. sea　4. jump　5. danger　6. fr 7. like　8. prtect　9. rules　10. stp
Fill in each blank with the crrect wrds given. Change the frm f the wrds if necessary. 1.What has happened t the giant turtles? There aren’t ___________ （many) ’s a _____ (fact) that India has the secnd largest ppulatin in the mre it rained , _________ (much) wrried we _______(millin) peple live in that hill is three _______ (time)　as high as this ne.
1.Write and master the phrases and the sentences. 2. Write the phrases twice and master ten phrases.