高中英語(yǔ)必修二 Unit2 Wildlife Protection Period 3 Discovering Useful Structures 學(xué)案

1、新人教版必修二Unit 2 Period 3 Discovering Useful Structures 學(xué)案學(xué)生姓名班級(jí)序號(hào)課題內(nèi)容Unit 2 Wildlife Protection Period 3 Discovering Useful Structures教材分析In this lesson, we reviewed the passive voice, the simple past tense and the simple present tense, and learned the structure and usage of the present continuous pas

2、sive voice. There are four practices in the text. They are intensive training of the present continuous passive voice. The first exercise in the text is to rewrite the sentences. This subject requires students to underline the present continuous passive voice in the sentences, change them into activ

3、e voice and compare the differences in meaning. The second exercise students arerequiredto choose the suitable verb forms to complete the sentences.The third exercise studentsarerequiredto finish the passage with the present continuous passive voice of the verbs in brackets.The main idea is: in the

4、wetland of Liu Taos hometown, wild animals are being caught or killed in recent years.the wetland is being destroyed, rubbish everywhere.The wetland is being polluted seriously every day.The fourth subject in the text is oral training, which requires students to discuss problems in groups according

5、to the topic content, and prepare to give a presentation of your ideas to the class. The topic is :What do you know is being done in your neighbourhood to protect animals and plants? What suggestions do you have? In this lesson, the use of the present continuous passive voice is applied to classroom

6、 training, and a variety of topics are selected to improve students learning ability, consolidate students grammar knowledge, train students logical thinking ability and language expression ability, and strengthen students sense of teamwork. Combine simple grammar knowledge with the topic of animal

7、protection, closely follow the unit theme, step by step, and comprehensively improve students learning ability. 學(xué)習(xí)目標(biāo)與核心素養(yǎng)1. Students understand and master the structure and usage of the present continuous passive voice.2. Students can use the present continuous passive voice correctly in specific si

8、tuations.3. Be able to use the passive voice of the present continuous tense flexibly,talk with partners about topics related to animal and environmental protection and draw conclusions. 學(xué)習(xí)重點(diǎn)1. Help students to understand the structure and usage of the present continuous passive voice.2. Students ca

9、n use the present continuous passive voice correctly and talk with their partners about topics related to animal and environmental protection. 3.Students can use the present continuous passive voice correctly to write an article. 學(xué)習(xí)難點(diǎn)Students can use the present continuous passive voice correctly an

10、d talk with their partners about topics related to animal and environmental protection. 知識(shí)梳理一、重點(diǎn)單詞1. reduce vt.減少 ,縮小,降低2.deer n.鹿3.kangaroos n.袋鼠4.due adj.由于,因?yàn)閐ue to由于;因?yàn)?.insect n.蟲(chóng) n.網(wǎng)7.neighbourhood n.街區(qū) ;城區(qū);鄰近的地方二、重要語(yǔ)言點(diǎn)It is reported that living spaces for wildlife are being reduced due to the

11、 cutting of trees.據(jù)報(bào)道，由于砍伐樹(shù)木，野生動(dòng)物的生存空間正在減少。1.reduce vt.減少,縮小,降低搭配: reduce.to把.減少到. (to表示結(jié)果)reduce.by把.減少了. (by表示幅度)Giving up smoking reduces the risk of heart dis ease.戒煙會(huì)減少得心臟病的風(fēng)險(xiǎn)。They are looking at ways of reducing the waste of natural resources.他們正在尋找減少自然資源浪費(fèi)的方法。He was advised to reduce his alco

12、hol consumption.他被勸告減少飲酒。2.due to由于，因?yàn)镸ost of the problems were due to human error.多數(shù)問(wèn)題都是人為錯(cuò)誤造成的。Water in the pond gradually diminished due to lack of rainfall.由于缺少降雨，池塘里的水逐漸減少。歸納拓展be due to do sth.預(yù)計(jì)要做某事be due for應(yīng)得到.The boat is due to arrive at 12 o clock.船預(yù)計(jì)在12點(diǎn)鐘到達(dá)。I am due for an increase in pay

13、 soon.我不久就該加薪了。同步訓(xùn)練一、單詞填空1.2018北京卷Anger is rarely looked upon as a beneficial character trait,and is usually advised _(reduce) it.2.He is due_praise because of his heroic deeds.3.The number of the bikes they produce _(已經(jīng)減少到) 100,000 this year.4.His mistake was _(因?yàn)? lack of experience.5.2019天津3月卷The

14、 captain of the ship was advised to turn back due _a sudden heavy storm.二、完成句子1.The sports_(正在被舉辦)meeting in the new stadium.2.The giant machine_(被拆卸) at the moment and it will be set up in the new workshop in the near future.3.The classroom_(正被裝飾) with balloons and flowers right now and the student

15、s are preparing for the New Year party.4.The window of our classroom_(經(jīng)常被打破).5.The sum these computers will cost us_(正在計(jì)算中).三、句型轉(zhuǎn)換1.Please tell me something about the meeting being held now.Please tell me something about the meeting_.2.I find the national flag is being raised.I find the national fla

16、g_.3.The computer is in use now.The computer_now.4.These high-tech products are on display these days.These high-tech products are_ these days.5.The castle is under attack at the moment.The castle is_ at the moment.四、完形填空 Some of the greatest problems we face today are concerned with the gradual des

17、truction of our environment. Brown clouds; wildlife 1polluted water. These2all seem so huge. So my family does what we can. We take cloth bags to stores instead of using plastic bags. We walk where we dont have to3. But does it do any good? I recently learned something about flamingos(火烈鳥(niǎo)). These be

18、autiful birds gather in4groups of a thousand or more. Every year, when the time5for migration, a few flamingos start the process by taking off from the lake. But6of the others seem to notice, so the tiny group returns. However, the next day they7again. This time a few more struggle along with them,

19、but the vast majority still8no attention, so these pioneers come back. The9continues for several more days. Every time a few more birds join in but, 10the thousands of others still take no11, the great migration plan is once again12. Then one day something13. The same small group of birds takes wing

20、 and a tiny number more join in, just as before. And this time their total number, though still quite14, is enough to tip the balance. As one, the whole group takes flight and the migration15. What a16sight it must bethousands of flamingos taking to the sky at once! A few can make a17. Its true that

21、 all of the great problems of the world have been solved because of the18efforts of a few.If you believe in a cause(事業(yè)), dont19! Others will someday take notice and together we will20even our greatest problems.1. A. protectionB. extinctionC. migrationD. separation2. A. questionsB. costsC. examplesD.

22、 problems3. A. driveB. runC. cycleD. stand4. A. tinyB. differentC. hugeD. similar5. A. comesB. passesC. variesD. moves6. A. allB. anyC. noneD. most7. A. gatherB. tryC. singD. appear8. A. attractB. requireC. escapeD. pay9. A. planB. trendC. activityD. movement10. A. sinceB. thoughC. unlessD. while11.

23、 A. responsibilityB. noticeC. chanceD. measure12. A. put offB. cut offC. carried outD. worked out13. A. approachesB. worksC. changesD. disappears14. A. significantB. reasonableC. adequateD. small15. A. continuesB. delaysC. finishesD. begins16. A. familiarB. strangeC. magnificentD. unrealistic17. A.

24、pointB. decisionC. differenceD. mistake18. A. uselessB. tirelessC. extraD. special19. A. give upB. give inC. give awayD. give out20. A. identifyB. understandC. predictD. solve答案一、單詞填空1.答案to reduce解析句意：憤怒很少被視為一種有益的性格特征，通常建議減少它。be advised to do sth.被建議做某事。2.答案for3.答案has reduced to4.答案due to/owing to5.

25、答案to解析句意：由于突然的一場(chǎng)暴風(fēng)雨，船長(zhǎng)被建議返航。Due to由于，因?yàn)椤６?、完成句子答?.is being held2.is being taken apart3.is being decorated4.is frequently being broken5.is being calculated三、句型轉(zhuǎn)換答案1.which is being held now2.being raised3.is being used4.being displayed5.being attacked四、完形填空答案1.B；2.D；3.A；4.C；5.A；6.C；7.B；8.D；9.B；10.A；11

26、.B；12.A；13.C；14.D；15.D；16.C；17.C；18.B；19.A；20.D； 解析本文是一篇說(shuō)明文，作者從那些準(zhǔn)備遷徙的火烈鳥(niǎo)先行者身上認(rèn)識(shí)到少數(shù)群體也可以產(chǎn)生決定性的影響，并最終會(huì)帶領(lǐng)大多數(shù)人行動(dòng)起來(lái)解決我們與環(huán)境破壞有關(guān)的大問(wèn)題。1.考查名詞。句意：棕色云、野生動(dòng)物滅絕、水污染，這些問(wèn)題似乎都很嚴(yán)重。A. protection“保護(hù)”；B. extinction“滅絕”；C. migration“遷移”；D. separation“分離”。此處與Brown clouds和polluted water并列是三個(gè)嚴(yán)重的問(wèn)題，指的是野生動(dòng)物滅絕，故選B。2.考查名詞。句意：棕

27、色云、野生動(dòng)物滅絕、水污染，這些問(wèn)題似乎都很嚴(yán)重。A. questions“問(wèn)題”；B. costs“花銷，成本”；C. examples“例子”；D. problems“問(wèn)題”。根據(jù)第一句中的problems可知此處指具體的問(wèn)題，選D。3.考查動(dòng)詞。A. drive“開(kāi)車”；B. run“跑”；C. cycle“騎自行車”；D. stand“站”。根據(jù)上文的“We walk where we dont have to”可知此處是指我們會(huì)步行去不需要開(kāi)車去的地方，故選A。4.考查形容詞。句意：這些美麗的鳥(niǎo)成百上千甚至成千上萬(wàn)只聚集成群。A. tiny“微小的”；B. different“不同的

28、”；C. huge“巨大的”；D. similar“相似的”。根據(jù)下文的“groups of a thousand or more”可知，一個(gè)鳥(niǎo)群有很多只火烈鳥(niǎo)，規(guī)模非常大，故選C。5.考查動(dòng)詞。句意：每年，當(dāng)遷徙的時(shí)候，一些火烈鳥(niǎo)會(huì)從湖中飛出。A. comes“到來(lái)”；B. passes“經(jīng)過(guò)”；C. varies“不同”；D. moves“移動(dòng)”。the time comes for.“到的時(shí)候了”，故選A。6.考查代詞。A. all“所有”；B. any“任何”；C. none“一個(gè)也沒(méi)有，沒(méi)有人”；D. most“大多數(shù)”。根據(jù)下文的“so the tiny group returns

29、”可知，其他的火烈鳥(niǎo)中并沒(méi)有注意到，于是這一小群火烈鳥(niǎo)又飛回到湖面上，故選C。7.考查動(dòng)詞。A. gather“聚集”；B. try“嘗試”；C. sing“唱歌”；D. appear“出現(xiàn)”。根據(jù)下文的“This time a few more struggle along with them”可知，第二天，這些少數(shù)的先行者會(huì)再次從湖中飛出（準(zhǔn)備遷徙），故選B。8.考查動(dòng)詞。句意：這一次又有一些火烈鳥(niǎo)會(huì)與它們一起起飛，但絕大多數(shù)仍然沒(méi)注意到，所以這些先行者又回來(lái)了。A. attract“吸引”；B. require“要求”；C. escape“避開(kāi)”；D. pay“給予”。pay no at

30、tention to固定短語(yǔ)，“不注意”，故選D。9.考查名詞。句意：這種趨勢(shì)（嘗試）要持續(xù)好多天。A. plan“計(jì)劃”；B. trend“趨勢(shì)”；C. activity“活動(dòng)”；D. movement“運(yùn)動(dòng)”。此處指火烈鳥(niǎo)起飛準(zhǔn)備遷徙的嘗試，故選B。10.考查連詞。句意：由于成千上萬(wàn)的火烈鳥(niǎo)仍然沒(méi)有注意到，大遷移計(jì)劃再次被推遲。A. since“既然、由于”；B. though“盡管”；C. unless“除非”；D. while“而”。成千上萬(wàn)的火烈鳥(niǎo)仍然沒(méi)有注意到是大遷移計(jì)劃再次被推遲的原因，故選A。11.考查名詞。句意：由于成千上萬(wàn)的火烈鳥(niǎo)仍然沒(méi)有注意到，大遷移計(jì)劃再次被推遲。A.

31、responsibility“責(zé)任”；B. notice“注意”；C. chance“機(jī)會(huì)”；D. measure“措施”。take no notice與上文pay no attention to意思相近，表示沒(méi)注意到，故選B。12.考查動(dòng)詞短語(yǔ)。A. put off“推遲”；B. cut off“切斷”；C. carried out“實(shí)施”；D. worked out“算出”。根據(jù)上文先行者又飛回來(lái)可知，遷徙計(jì)劃被推遲了，故選A。13.考查動(dòng)詞。句意：但有一天，事情發(fā)生了變化。A. approaches“靠近”；B. works“起作用”；C. changes“改變”；D. disappears“消失”。根據(jù)下文的“The same small group of birds takes wing and a tiny number more join in”可知，情況發(fā)生了改變，又有一些火烈鳥(niǎo)加入，故選C。14.考查形容詞。句意：這一次，它們的總數(shù)雖然仍然很小，但足以打破平衡。A. significant“重大的”；B.