高中英語 Unit 4 Wildlife Protection Period four課件 新人教版必修2.ppt

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Period Four Grammar & Writing,觀察感悟(源于教材) Ⅰ.現(xiàn)在進(jìn)行時的被動語態(tài) 1.It said, “we________________ for the wool beneath our stomachs.” 2.Our fur ________________ to make sweaters for people like you. 3.I wonder what ________________ to help you. 4.So good things ________________ here to save local wildlife. 答案 1.are being killed 2.is being used 3.is being done 4.are being done,[知 識 梳 理],Ⅱ.單句語法填空 1.My money ________ (give out), so I must go to the bank to draw some of my savings out before I have none in hand. 2.—Why does the river smell so disgusting? —Because large quantities of water ________ (pollute). 3.The foreign friends you referred to are looking forward to ________ (show) around our school. 4.The building ________ (build); I can’t stand the noise. 5.—Have you moved to your new school? —Not yet.Our school ________ (design). 答案 1.is giving out 2.has been polluted 3.being shown 4.is being built 5.is being designed,Ⅲ.將下列句子變?yōu)楸粍诱Z態(tài) 1.Our teacher is showing the visitors around the school. ______________________________________________________ 2.They aren’t repairing my car but they are repairing your car. ______________________________________________________ 3.We are holding a basketball match now. ______________________________________________________ 4.Are they searching for the last boy? ______________________________________________________ 5.Are you making a plan for your study? ______________________________________________________,6.—Is the worker cutting the grass? —No, he is watering the flowers. ______________________________________________________ 答案 1.The visitors are being shown around the school (by our teacher). 2.My car isn’t being repaired but your car is being repaired (by them). 3.A basketball match is being held (by us). 4.Is the lost boy being searched for? 5.Is a plan for your study being made (by you)? 6.—Is the grass being cut? —No, the flowers are being watered (by the worker).,Ⅳ.根據(jù)漢語完成句子 1.At the moment my house ________________. 目前我的房子正在維修。 2.The children ________________ by the teacher. 這位老師在照看這些孩子。 3.The new building is ________________. 新大樓正在建設(shè)中。 4.________________ by several reporters now. 現(xiàn)在有好幾個記者正在對這個電影明星進(jìn)行采訪。,5.Many soldiers ________________ that country by ship.Maybe there is going to be a war over there. 船正在把許多士兵運(yùn)往那個國家，或許那兒將有一場戰(zhàn)爭。 答案 1.is being repaired 2.are being looked after 3.being built 4.The film star is being interviewed 5.are being carried to,現(xiàn)在進(jìn)行時的被動語態(tài) 1.構(gòu)成形式 am/is/are＋being＋過去分詞 2.表達(dá)的意義 (1)表示某事/某人此時此刻正在被…… The bridge is being repaired. 這座橋正在維修。 (2)表示某事/某人現(xiàn)階段正在被…… Many interesting experiments are being carried out these days. 這些天正在做一些有趣的實(shí)驗(yàn)。,(3)表示一種經(jīng)常性的行為，常與always, constantly, frequently等連用，表示贊賞、羨慕、討厭等感情色彩。 I feel very surprised that the window of our classroom is frequently being broken. 我感到非常吃驚的是我們教室的那扇窗子經(jīng)常被打破。 (4)表示按照計劃或安排將要進(jìn)行的一個被動動作(僅限于少數(shù)幾個及物動詞hold, take等)。 A party is being held tonight. 今晚將要舉行一場晚會。 (5)一些表示狀態(tài)、心理活動、擁有、存在等的動詞，一般不用現(xiàn)在進(jìn)行時的被動語態(tài)，而常用一般現(xiàn)在時的被動語態(tài)。 Xiao Wang, come here.You are wanted on the phone. 小王，過來一下，有你的電話。,Ⅰ.滿分作文賞析 請用英語為China Daily寫一篇關(guān)于保護(hù)野生動物的短文。內(nèi)容包括： 1.許多野生動物瀕臨滅絕，保護(hù)野生動物勢在必行； 2.分析造成野生動物瀕臨滅絕的原因，如：森林遭到破壞、環(huán)境被污染、人類大量捕殺等； 3.提出保護(hù)野生動物的一些建議。 注意：詞數(shù)80左右。,[寫 作 點(diǎn) 撥],【范文“悅”讀】 Many wild animals have already died out and hundreds of others are becoming endangered.So it is necessary to protect wild animals.If nothing is done, we may find ourselves alone on the earth. Wild animals are endangered for many reasons.Firstly, the forests where animals live are being destroyed.As a result, a lot of animals are losing their habitats.Secondly, many animals are dying out because of pollution.Besides, too much hunting also causes the disappearance of certain species of wild animals. In my opinion, the government should keep people from destroying forests and shut down factories which pollute rivers and air.What’s more, more wildlife centers should be set up.,Ⅱ.作文仿寫 江豚(finless porpoise)受人類活動的影響而瀕臨滅絕，目前總數(shù)不足100只。假設(shè)你是李華，用英語給世界自然保護(hù)基金組織(WWF)寫一封信。信的內(nèi)容包括： 1.寫信的目的； 2.簡述江豚的現(xiàn)狀； 3.給WWF的一些建議。 注意：詞數(shù)80左右。,【參考范文】 Dear Sir or Madam， I’m writing the letter to report you the emergent situation of the Chinese Yangtze finless porpoise.Because of the human beings’ destructive influence, the number of this precious species has promptly dropped to less than 100.,As far as I know, your foundation can help those species that are at the edge of distinction.I’m writing this letter to you to ask for your generous donation to our project to protect this endangered species.If it is not too much inconvenient, would you please come to China to have a close observation of the poor porpoises and give us aid and directions to prevent them from dying out completely? Thanks for reading my letter and anxiously anticipating to hear from you soon. Yours sincerely， Li Hua,【寫作方法指導(dǎo)】 野生動植物保護(hù)是生態(tài)保護(hù)中重要的部分，近年來受到越來越多的重視。與此相關(guān)的寫作話題常涉及野生動植物現(xiàn)狀、面臨的危險、正在或應(yīng)該采取的措施，以及保護(hù)它們的意義等。 這類文章多分為三個部分：第一部分寫出瀕危動植物的現(xiàn)狀；第二部分說明物種滅絕對整個生態(tài)系統(tǒng)、人類的影響，或是分析利弊；最后一部分提出保護(hù)的建議或進(jìn)行呼吁。 描述瀕危的動植物以及實(shí)施的政策時多用現(xiàn)在時，若是呼吁大家進(jìn)行保護(hù)則多用將來時。分析利弊時可采用從句或連詞等以使句子顯得結(jié)構(gòu)緊湊。,常用句式： 1.In our country, the number of wild animals is becoming smaller and smaller. 2.Many animals are in danger of dying out nowadays. 3.As is known in the chart, the number of animal species decreases faster and faster. 4.This trend will continue. 5.The reasons are as follows. 6.As far as I’m concerned, something must be done to stop this illegal action.,