Unit1T2SectionC

1、section c5知識目標(biāo)1. 重點(diǎn)單詞difficulty, measure, percent2. 重點(diǎn)短語1) half of 的一半2)one fifth 五分之一 two fifths 五分之二3) be short of 短缺4) so far 到目前為止5) take measures to do sth 采取措施做某事6) work well in doing sth 在方面很有效7) 20 percent 百分之二十8) deal with 處理3.重點(diǎn)句型(1) for example, we are short of energy and water. (2) so fa

2、r, our government has taken many measures to control the population. (3) thanks to the policy, china is developing quickly and peoples living conditions are improving rapidly. (4) it has worked well in controlling chinas population . 能力目標(biāo)1. 繼續(xù)學(xué)習(xí)現(xiàn)在完成時(shí)2. 繼續(xù)討論有關(guān)人口增長的問題。情感目標(biāo)引導(dǎo)學(xué)生充分認(rèn)識控制人口增長的必要性。讓學(xué)生收集資料，分組

3、討論人口過多所引起的問題。然后閱讀完成1b，找出與人口表達(dá)有關(guān)的句子。_設(shè)計(jì)意圖通過資料收集，全面了解人口問題的嚴(yán)峻，同時(shí)積累素材；另一方面找出文中原句，學(xué)習(xí)用恰當(dāng)?shù)恼Z言表達(dá)人口問題，為寫作奠定基礎(chǔ)。創(chuàng)意開場白：teacher: boys and girls, we have known the world has a large population. now, look at the picture and the statements about population.教學(xué)建議通過圖片，創(chuàng)設(shè)語言情景，呈現(xiàn)部分生詞、詞組及分?jǐn)?shù)的表達(dá)法。教師展示人才市場的圖片和事先準(zhǔn)備好的小黑板，引出1a。

4、板書單詞difficulty，詞組so far, one fifth，詳解并要求學(xué)生掌握分?jǐn)?shù)表示法；掌握單詞percent，詞組be short of, take measures to do sth。讓學(xué)生讀1a，然后回答1a中的兩個(gè)問題，完成1a精彩過渡lets look at 1b. describe the disadvantages of chinas large population according to 1a and write them down. you have two minutes教學(xué)建議利用關(guān)鍵詞復(fù)述1a，并獨(dú)立完成1b，進(jìn)一步了解中國所面臨的人口問題。讓學(xué)生自讀

5、1a并獨(dú)立完成1b，然后核對答案。學(xué)生閱讀1a的同時(shí), 教師把關(guān)鍵詞列在小黑板上。然后根據(jù)小黑板上的關(guān)鍵詞復(fù)述1a作示范，然后讓兩位同學(xué)復(fù)述。當(dāng)學(xué)生表達(dá)錯(cuò)誤時(shí), 教師給予糾正。當(dāng)學(xué)生表達(dá)不出時(shí), 教師或其他同學(xué)給予幫助，提高學(xué)生口語復(fù)述能力。精彩過渡now, look at the picture. the earth is full of people. every minute about 261 babies are born in the world. that means people have to find food for about 375 840 newborn babie

6、s every day. the population problem is serious. please listen to the tape and complete the article in 2a.教學(xué)建議教師拿出一張”地球上站滿人”的圖片或?qū)D片展示在多媒體上。讓學(xué)生仔細(xì)觀察, 然后播放2a錄音，完成2b。進(jìn)一步了解世界和中國人口狀況，強(qiáng)化練習(xí)現(xiàn)在完成時(shí)的用法。語法講解：1【導(dǎo)學(xué)】one fifth 五分之一 表示分?jǐn)?shù)的時(shí)候，分子用基數(shù)詞，分母用序數(shù)詞。分子大于1時(shí)，分母必須用復(fù)數(shù)?？梢越柚澳笖ⅲㄐ颍┳羽嚕ɑ保赣H說兒子餓了）的諧音來幫助記憶。如：1/4 one fourt

7、h 2/3 two thirds1/2 a (one) half/one second 【延伸】含有分?jǐn)?shù)的短語做主語時(shí)，謂語動詞的單復(fù)數(shù)由分?jǐn)?shù)后面的名詞決定（population例外）。如： two thirds of the people in the city are against the new law. 有三分之二的市民反對這項(xiàng)新法。three fourths of the apple has gone bad. 這個(gè)蘋果的四分之三都已經(jīng)壞掉了。2【導(dǎo)學(xué)】be short of 缺少，缺乏 如： many children in the less developed areas ar

8、e still short of food and clothes . 貧困地區(qū)的很多孩子仍然缺吃少穿?！狙由臁?1) be short for 是的縮寫 如：phone is short for telephone. phone是telephone的縮寫形式。(2) for short 簡稱，縮寫 如： we often call daniel dan for short. 我們經(jīng)常把丹尼爾簡稱為丹。3【導(dǎo)學(xué)】(1) so far 到目前為止，迄今為止，常用來判斷現(xiàn)在完成時(shí)。如：michael has made more than ten friends in china so far. 到

9、目前為止，邁克爾已經(jīng)在中國交了10多個(gè)朋友。(2) take measures to do sth 采取措施做某事 如：we will have to take stronger measures to stop the population from increasing rapidly. 我們將不得不采取更強(qiáng)有力的措施來阻止人口的快速增長。4【導(dǎo)學(xué)】because of 由于，因?yàn)椋?如：he went to school late because of the heavy rain.因?yàn)橄麓笥?，他上學(xué)遲到了?！狙由臁縯hanks to由于，因?yàn)?，幸虧（含有慶幸的意思）。在表達(dá)導(dǎo)致好的結(jié)果

10、時(shí)可與because of互換。如：thanks to his help, we finished this task successfully. = because of his help, we finished this task successfully. 由于他的幫助，我們成功地完成了這項(xiàng)任務(wù)。5【導(dǎo)學(xué)】work well （in sth/ doing sth） （在某方面）起明顯的作用 如：this kind of medicine works well in lung cancer. 這種藥對治療肺癌很有效。【延伸】與work相關(guān)的短語out of work 失業(yè)；work ha

11、rd 努力工作；hard work 艱苦的工作；work out 制定出，算出；work on 從事，致力于6. 【導(dǎo)學(xué)】have difficulty ( in ) doing sth 在做某事方面有困難 如：michaels brother has great difficulty（in）getting along well with others. 邁克爾的弟弟在和其他人友好相處方面有嚴(yán)重的障礙。my deskmate has some difficulty (in) spelling some of the worlds in american english. 我的同桌在拼寫某些美式

12、英語單詞時(shí)有些困難?！狙由臁浚?）這個(gè)句型中，difficulty前面可以加一些表示程度的修飾詞，如some, little, much, a lot of, no, any 等。（2）difficulty也可用trouble或problem替換即：have trouble/ a problem/ problems ( in ) doing sth (3)如果difficulty后面是名詞或代詞，則用have difficulty with sth【追蹤訓(xùn)練】選擇恰當(dāng)?shù)拇鸢? d )id you have any trouble _ the post office?a. to have fou

13、nd b. with findingc. to find d. in finding參考答案：d一 翻譯下列詞組或句子。1 世界人口的一半 half of the worlds population2 世界上五分之一的人口居住在中國 one fifth of the people in the world live in china.3 許多人找工作都困難 its difficult for lots of people to find jobs.4 人口眾多也給整個(gè)國家?guī)砹嗽S多其他的困難 the large population also causes many other difficu

14、lties for the whole nation.5 缺乏 be short of6 在做某事方面起明顯作用 work well in doing sth7 有很長的路要走h(yuǎn)ave a long way to go出題意圖本題旨在通過比較簡單直接的翻譯重現(xiàn)本課時(shí)重點(diǎn)單詞、短語，以讓學(xué)生對所學(xué)重點(diǎn)詞匯進(jìn)行鞏固和運(yùn)用。參考答案1. half of the worlds population 2. one fifth of the people in the world live in china. 3. its difficult for lots of people to find jobs

15、. 4.the large population also causes many other difficulties for the whole nation. 5.be short of 6.work well in doing sth 7. have a long way to go二、單項(xiàng)選擇。( b )1. its reported that _ of the foreign countries have chinese classes in their middle school. a. two three b. two thirds c. two third d. second

16、 three ( d )2. a new law has been passed and it will _ protecting the bird.a. be good at b. do well in c. be weak in d. work well in ( b )3. jane, maria doesnt know how to _ the problem. can you give her a hand? my pleasure. a. do with b. deal with c. get d. help( a )4. the population of the world i

17、s becoming _. a. larger and larger b. fewer and fewer c. more and more d. better and better( a )5. about three fourths of the boys often _ swimming in summer. a. go b. goes c. to go d. went ( d )6 . zhang shaohan _ a singer. a. is famous for b. is famous to c. is known for d. is known as ( b )7. we

18、have to face heavy traffic _ the large population.a. because b. because of c. thanks to d. thanks for ( a )8. our country will have _ trees and _ pollution，so our living environment will become better and better. a. more, less b. more, fewer c. less, more d. fewer, fewer( b )9._ maria _ jane are goo

19、d at playing volleyball. a. not only, but also b. both, and c. neither, nor d. either, or( c )10. i have finished my homework. when _ you _ it?a. have, finished b. do, finishc. did, finish d. will, finish出題意圖：通過做題，強(qiáng)化學(xué)生對課時(shí)內(nèi)的重點(diǎn)語言點(diǎn)的理解和運(yùn)用。解題思路1. b 分?jǐn)?shù)的表達(dá)為先分子后分母，分子用基數(shù)詞，分母用序數(shù)詞；分子大于1時(shí)，分母用復(fù)數(shù)。 2. d work well

20、in 在某方面起明顯作用。 3. b 處理問題。do with 與what 搭配；deal with 與how 搭配。 4. a 人口只能用large/ small修飾 5. a 有often和in summer可知用一般現(xiàn)在時(shí)態(tài)；一部分作主語由后面的名詞，即boys決定單復(fù)數(shù)。 6. d famous和known 意思、用法基本相同。singer是張韶涵的身份。 7. b 巨大的人口是交通擁擠的原因，且導(dǎo)致了不好的后果；large population是名詞短語，不能用because。 8. a more是many和much的比較級，可以修飾可數(shù)名詞和不可數(shù)名詞；less 是little的比

21、較級，只能修飾不可數(shù)名詞；fewer是few的比較級，只能修飾可數(shù)名詞。“環(huán)境越來越好”是因?yàn)闃淠径嗔?，污染少了?9. b 該句謂語動詞用的是are。而a，c，d在連接倆個(gè)主語時(shí)都要遵守就近一致的原則。10. c 這里when是對過去動作發(fā)生的時(shí)間提問，強(qiáng)調(diào)過去時(shí)間，而不強(qiáng)調(diào)影響。課后作業(yè)方案一寫出下列分?jǐn)?shù)。1. 1/3 one third 2. 3/5 three fifths3. 5/6 five sixths 4. 4/9 four ninths5. 3/4 three fourths/ three quarters 6. 1/2 one second/ a (one) half7.

22、3 2/5 three and two fifths 8. 2 6/7 two and six sevenths出題意圖：本題旨在練習(xí)分?jǐn)?shù)的英語讀法。基本方法是：“母序子基（母敘子饑：母親說兒子餓了）”；分子大于1，分母加s。參考答案1. one third 2. three fifths 3. five sixths 4. four ninths 5. three fourths/ three quarters6. one second/ a (one) half 7. three and two fifths 8. two and six sevenths二、用所給詞的適當(dāng)形式填空。1.

23、we believe it will work well in protecting (protect) the students eyes.2. every minute, about 261 babies are born (born) in the world.3. it has reached two fifths (five) of the worlds population. 4. forty percent of the students in our class enjoy (enjoy) playing basketball.5. china has done somethi

24、ng to control (control) the increasing population.6. some parents in less developed (develop) areas prefers boys to girls.7. the greens will stay (stay) at home next friday8. the sun goes (go) down earlier in winter than in summer出題意圖通過做題，鞏固學(xué)生對重點(diǎn)單詞，短語的理解，掌握和運(yùn)用及對各種時(shí)態(tài)的準(zhǔn)確判斷。解題思路1. protecting work well

25、in doing的結(jié)構(gòu). 2. are born be born 出生于；“世界上每分鐘都有261個(gè)孩子出生”是客觀現(xiàn)狀，所以用一般現(xiàn)在時(shí)態(tài)。 3. fifths 五分之二 4. enjoy 一部分作主語時(shí)，由后面的名詞決定單復(fù)數(shù)形式。 5. to control 不定式表目的 6. developed less developed 欠發(fā)達(dá)的 7. will stay 由next friday可知是將來時(shí)態(tài)。 8. goes 客觀事實(shí)用一般現(xiàn)在時(shí)態(tài)。三. 根據(jù)句意和首字母提示補(bǔ)全單詞。1. many babies are born in this hospital every year.2.

26、the population of china is over 1.3 billion.3. china is a developing country while the japan is a developed country.4. the number of trees on the mountain increases by 20 percent every year and it will be covered with tall trees in years. 5. youd better take measures to improve your spoken english.

27、6. what problems will the large population cause?7. the students met many difficulties during their travel, but they didnt give up. 8 .david used to be quiet, but he is quite outgoing now.出題意圖本題旨在練習(xí)學(xué)生對于句子的整體理解，同時(shí)鞏固本堂課所學(xué)重點(diǎn)，也能為完成短文填空打基礎(chǔ)。解題思路1. born be born in 出生于 2. billion billion“十億”中國人口13億多 3. deve

28、loping, developed developing country 發(fā)展中國家；developed country 發(fā)達(dá)國家 4. percent 百分之二十；percent不用復(fù)數(shù) 5. measures 采取措施做某事 6. cause cause problems 引起問題 7. difficulties meet difficulties 遇到麻煩/困難 8. used used to be 過去是，曾經(jīng)是。大衛(wèi)現(xiàn)在很外向。用but來轉(zhuǎn)折，說明與現(xiàn)在相反。四根據(jù)中文提示，完成句子1. 他喜歡說不喜歡寫。 he prefers speaking to writing.2. 我們好久

29、沒有收到他的來信了。we havent heard from him for a long time.3老師讓我們上課別說話。the teacher asked us not to talk in class.4一定要讓他準(zhǔn)時(shí)還書。make sure that he can return the book on time.5活到老學(xué)到老。its never too late to learn.6我已經(jīng)把它寫在這張紙上了。ive written it down on this piece of paper already7他的工廠里有三個(gè)德國人，四個(gè)日本人。其他的是美國人。there are t

30、hree germans and four japanese in his factory. and the others are americans.出題意圖不斷重現(xiàn)課堂重點(diǎn)，加深學(xué)生印象；并通過翻譯，練習(xí)學(xué)生的語言表達(dá)能力。參考答案1. prefers, writing 2. heard from 3. not, to4. make sure 5. never, late 6. written, down 7. three germans, four japanese, the others五短文填詞。there are more than 1.3 billion people in ch

31、ina. its almost one fifth of the worlds population. how to control the population growth is a big problem. some people think 1 it impossible to control the population growth. but i dont quite agree 2 with them, because where there is a will, there is a way.the question is that we should make it known to everybody 3 how serious the population problem is. our farmland is becoming less and less to everyone. we have already got too many mouths to feed. 4 unless we control the population growth