英語(yǔ)必修3第4單元課件

1、英語(yǔ)必修3第4單元課件第一課時(shí)Warming up & Reading2Each religion and culture has its own ideas about how life began on earth. What do you know about them?34567重點(diǎn)單詞1astronomy n天文學(xué)astronomer n天文學(xué)家2system n系統(tǒng)；體系；制度3theory n學(xué)說(shuō)；理論4. religion(n.)宗教，宗教信仰religious(adj.)宗教上的5globe n球體；地球儀；地球global adj.全球性的；全世界的6. violent a

2、dj.猛烈的；激烈的；強(qiáng)暴的violence n暴力violently adv.猛烈地 87. fundamental(adj.)基本的；基礎(chǔ)的8. atmosphere n大氣層；氣氛9. unlike prep.不同；不像dislike vt.不喜歡10.presence n出席；到場(chǎng)；存在present adj. & n. & v在場(chǎng)的；目前，現(xiàn)在；出席；頒發(fā)，授予11. harmful adj.有害的；傷害的harm n危害，害處harmless adj.無(wú)害的12chain(n.)鏈子；連鎖；鎖鏈9exactly 精確地，準(zhǔn)確地，確切地 exact adj. eg. Your ans

3、wer is exactly right.happen take place Great changes have taken place in my hometown in the last thirty years.10according to 根據(jù)，按照，據(jù)所說(shuō) 翻譯：Everything went accoring to plan. theory a formal set of ideas that explain why sth. happens n. 學(xué)說(shuō)，理論 throwthrewthrown throw away 扔掉11 direction 方向 matter 物質(zhì) 事情，問(wèn)

4、題 拓展： as a matter of fact in fact actually12combine .with .把與結(jié)合起來(lái) 翻譯：They live happily because they combine their work with pleasure. create creative creativity v. adj. n. 創(chuàng)造 有創(chuàng)造力的 創(chuàng)造力 13body 身體，軀干 天體uncertain 不確定的 certain 確定的 certainly adv.settle into 安定下來(lái)，穩(wěn)定下來(lái) settle down 定居，安定下來(lái)14solid 堅(jiān)固的，結(jié)實(shí)的glo

5、be n球體；地球儀；地球global adj.全球性的；全世界的15 violent adj.猛烈的；激烈的；強(qiáng)暴的violence n暴力violently adv.猛烈地so .that. 如此以至于造句：他是如此的有趣以至于每個(gè)人都很喜歡他。16He is so funny that everyone likes him very much.it is not clear whether .or not 還不確定, 還不清楚 句子仿寫： 他要不要來(lái)還不確定17It is not clear whether he will come or not.18 來(lái)得及；及時(shí) If you cat

6、ch the early bus, youll get there in time. 如果你趕上早班車，你會(huì)及時(shí)到達(dá)那兒的。 Will we be in time for the six oclock train? 我們來(lái)得及趕上六點(diǎn)鐘的那趟火車嗎？in time19atmosphere (n.)(1)(圍繞地球的)大氣；大氣層；大氣圈(2)C(房間、封閉空間或某處的)空氣 These plants love warm, humid atmosphere.這些植物喜歡溫暖潮濕的空氣。(3)C & U 氣氛； 氛圍The atmosphere changed as soon as she wal

7、ked in.她一進(jìn)來(lái)氣氛就變了。20appear 出現(xiàn)v. appearance n.disappear 消失v. disappearance n 知識(shí)點(diǎn)回顧：The fact is that I earned my passage by working as an unpaid hand, which accounts for my appearance.( unit 3, page 18)21unlike prep.不同；不像Water had also appeared on other planets like Mars but, unlike the earth, it had d

8、isappeared later.在火星等其他行星上也出現(xiàn)了水，但不像在地球上一樣，這些水后來(lái)消失了。Its unlike him to be late; hes usually on time.他不是會(huì)遲到的那種人；他通常很準(zhǔn)時(shí)。22易 錯(cuò) 點(diǎn) 撥自我完善誤區(qū)備考1. unlike/dislike/alike/likely(1)unlike prep.不同；不像(2)dislike vt. 不喜歡(3)alike adj. 相似的，同樣的(4)likely adj. 很可能發(fā)生的，有希望的It is likely/unlikely that.有/沒(méi)有可能23fundamental 基礎(chǔ)的，基

9、本的 Hard work is fundamental to success.勤奮工作是成功的基礎(chǔ)。development n. 發(fā)展 develop v. developed （社會(huì)，國(guó)家）發(fā)達(dá)的 deloping 發(fā)展中的造句：中國(guó)是一個(gè)發(fā)展中的國(guó)家24presence n出席；到場(chǎng)；存在present adj. & n. & v在場(chǎng)的；目前，現(xiàn)在；出席；頒發(fā)，授予 at present 現(xiàn)在，目前2526chain n鏈子，連鎖；鎖鏈This produced a chain reaction，which made it possible for life to develop.這就產(chǎn)生

10、了一個(gè)連鎖反應(yīng)，使生命的發(fā)展成為可能。He is in a poor taste with a thick gold chain round his neck.他戴著一條粗粗的金鏈子，顯得俗氣。27重點(diǎn)短語(yǔ)1in time及時(shí)；終于2according to 據(jù)所說(shuō)；根據(jù)，按照3. combine .with. 把與結(jié)合起來(lái)4. settle into 穩(wěn)定下來(lái)5. allow(permit) sb. to do sth. 允許某人做某事28.完成句子1地球變得激烈動(dòng)蕩，不知道這個(gè)固體形狀是否會(huì)繼續(xù)存在下去。The earth became_ it was not clear whether

11、the shape would last or not. (so. that.如此以至于)292噴出的烈火與巖石及時(shí)產(chǎn)生了碳、氮?dú)狻⑺魵夂推渌麣怏w，從而形成了地球的大氣層。They_ carbon, nitrogen, water vapour and other gases, which _ the earths atmosphere. (be in time to do sth.及時(shí)做某事；be to do sth.常用來(lái)表示不可避免將要發(fā)生的事情)303水對(duì)于生命的發(fā)展起關(guān)鍵作用，這一點(diǎn)在當(dāng)時(shí)并不明顯。_water was to be fundamental to the develo

12、pment of life. (It is obvious that.很明顯)314很多科學(xué)家相信，由于地球上長(zhǎng)期有水存在，使地球得以把有害氣體和酸性物質(zhì)溶解在海洋里。_the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas. 325. This produced a chain reaction, which _. 這就產(chǎn)生了一系列的反應(yīng)，使得生命的發(fā)展成為可能。33答案：1.so violent that2.were in time to produce; were to make3.It was not immediately obviou