高中英語(yǔ)選擇性必修四 Unit 3 Period Five Writing-An argumentative essay on sea exploration 課件

1、Sea ExplorationUnit 3Period FiveWritingAn argumentative essay on sea exploration寫作訓(xùn)練 弄清文路 寫作妙筆生花技法點(diǎn)撥 文體分析 把握寫作動(dòng)脈內(nèi)容索引本單元的寫作任務(wù)是辯論性議論文。一般包括四段：第一段說(shuō)明辯論的主題；第二段表明正方的觀點(diǎn)及其理由；第三段表明反方的觀點(diǎn)及其理由；第四段陳述自己的觀點(diǎn)。(有時(shí)也可以分為三段：第一段說(shuō)明辯論的主題；第二段表明正方和反方的觀點(diǎn)及理由；第三段表明作者自己的觀點(diǎn)。)技 法 點(diǎn) 撥文體分析 把握寫作動(dòng)脈寫作指導(dǎo)介紹討論的主題(開(kāi)頭句)：1.We had a discussion

2、 about whether it is necessary to.2.Weve had a survey on.3.Im writing to tell you about a discussion we have had about.過(guò)渡句：1.Opinions are divided on this issue.2.Opinions are mainly divided into two groups.3.Different people，however，have different opinions/think quite differently on this matter.常用表達(dá)

3、介紹正方觀點(diǎn)：1.45% of the students hold the view that.For one thing，.For another thing，.2.60% of the students are for the idea.介紹反方觀點(diǎn)：On the contrary/However/As the old saying goes，each coin has two sides.Nearly half of the students think that.On one hand，.on the other hand，.返 回當(dāng)前，隨著陸地資源短缺、人口膨脹、環(huán)境惡化等問(wèn)題的日益

4、嚴(yán)峻，各沿海國(guó)家紛紛把目光投向海洋，加快了對(duì)海洋的探索研究和開(kāi)發(fā)利用。一場(chǎng)以開(kāi)發(fā)海洋為標(biāo)志的“藍(lán)色革命”正在世界范圍內(nèi)興起。海洋資源的開(kāi)發(fā)利用，在很大程度上推動(dòng)了經(jīng)濟(jì)的發(fā)展，滿足了人類向海洋要效益的愿望，但在海洋開(kāi)發(fā)探索迅速升溫的同時(shí)，海洋資源也正承受著前所未有的壓力。寫 作 訓(xùn) 練弄清文路 寫作妙筆生花假設(shè)你是李華，最近你班就“人類是否應(yīng)該進(jìn)行海洋探索”進(jìn)行了討論。請(qǐng)根據(jù)討論結(jié)果，寫一封80詞左右的信給某英文報(bào)社的編輯來(lái)報(bào)道此事。贊成的理由反對(duì)的理由你的看法1.獲取更多的海底資源；2.提高對(duì)地球上生命的理解。1.造成海洋污染，導(dǎo)致海洋生物死亡；2.破壞生態(tài)系統(tǒng)。注意：開(kāi)頭和結(jié)尾已給出，不計(jì)入

5、總詞數(shù)。審題審題謀篇寫作要求是闡述“人類是否應(yīng)該進(jìn)行海洋探索”的討論結(jié)果，寫作時(shí)應(yīng)注意下面幾點(diǎn)：1.確定文體：這是一篇議論文。寫作時(shí)要注意議論文的寫作特點(diǎn)。2.主體時(shí)態(tài)：文章應(yīng)以一般現(xiàn)在時(shí)為主。3.主體人稱：由于是關(guān)于“人類是否應(yīng)該進(jìn)行海洋探索”的話題，所以人稱應(yīng)該以第三人稱為主。謀篇第一段：說(shuō)明討論的話題人類是否應(yīng)該進(jìn)行海洋探索；第二段：說(shuō)明正方和反方的觀點(diǎn)及理由；第三段：表明自己的觀點(diǎn)。遣詞造句核心詞匯1.執(zhí)行_2.支持_3.也，又，還_4.反對(duì)_5.導(dǎo)致_6.造成生態(tài)系統(tǒng)破壞_carry outin favour of/be foras well asbe against/object

6、tolead tocause ecosystem destruction連詞成句1.海洋探索使人們有可能發(fā)現(xiàn)新的藥物。Sea exploration new medicines.2.海洋探索也使人們有可能發(fā)現(xiàn)新的食物和能源。 Sea exploration new sources of food and energy.3.海洋探索可能會(huì)導(dǎo)致海洋污染。Sea exploration might marine pollution.4.海洋污染最終導(dǎo)致海洋生物死亡。Marine pollution finally .has made it possible for people to discove

7、rhas also made it possible for people to discoverbring aboutleads the ocean creatures to death5.海洋探索可能有助于增進(jìn)我們對(duì)地球上生命的了解。Sea exploration might help .6.科技進(jìn)步了。 7.我們可能有更多的選擇來(lái)管理這種平衡。We may this balance.improve our understanding of the life on the earthTechnology improves.have more options for managing句式升級(jí)

8、1.請(qǐng)把第1、2句話按下面括號(hào)內(nèi)的提示詞合成一句話。(1)Sea exploration has made it possible for people to discover .(not only.but also.)(2)Sea exploration has made it possible for people to discover new medicines .(as well as)2.請(qǐng)把第3、4句話按下面括號(hào)內(nèi)的提示合成一句話。Sea exploration might bring about marine pollution， .(which引導(dǎo)非限制性定語(yǔ)從句)3.請(qǐng)把第

9、6、7句話用主從復(fù)合句合成一句話。 ，we may have more options for managing this balance. not only new sources of food and energy but also new medicinesas well as new sources of food and energywhich finally leads theocean creatures to deathAs technology improves用適當(dāng)?shù)倪^(guò)渡詞語(yǔ)，把以上詞匯和句式，再加上聯(lián)想內(nèi)容，組成一篇80詞左右的英語(yǔ)短文。組句成篇參考范文Dear Edi

10、tor，Recently our class has had a discussion about whether sea explorationshould be carried out.Some of the students are in favour of sea exploration.They say sea exploration has made it possible for people to discover new medicines as well as new sources of food and energy.Others are against it.Although sea exploration might help improve our understanding of the life on the earth，it might bring about marine pollution，which finally leads the ocean creatures to death.It also might cause ecosystem destruction.