必修三Unit4Astronomy_thescienceofthestarsPeriod7review學(xué)案(無(wú)答案)

1、班級(jí)深圳市富源學(xué)校高中部課時(shí)教案高一英語(yǔ)學(xué)科英語(yǔ)時(shí)間月日星期第節(jié)第4頁(yè)課題教學(xué)目Un it4 Astro nomy: the scie nee of the starsPeriod 7 review un it4重難點(diǎn)1.課題鳥(niǎo)兒在湖面上空繞圈子。導(dǎo)入2.The origi n of life on earth is a questi on that in terests astro no mers.To review Ian guage points in un it 4How to use those key points by themselves教學(xué)過(guò)程n our solar syst

2、em eight pla nets circle around the sun.在我們的太陽(yáng)系里八個(gè)行星繞太陽(yáng)運(yùn)轉(zhuǎn)。The birds were circli ng around over the lake.地球上生命的起源是個(gè)使天文學(xué)家感興趣的問(wèn)題。the origi ns of civilizati on 文明的起源3. However， accord ing to a widely accepted theory, the uni verse bega n with a Big Bang that threw matter in all direct ions.但是，一種普遍為人們所接受

3、的理論是：宇宙起源于一次大爆炸，這次大爆炸將物質(zhì)投射到四 面八方。widely accepted被廣泛地接受、認(rèn)可begin with 始于to begin with 起初4. a cloud of dust 一團(tuán)塵埃ofcloudMy mother drew myun cles atte nti onto a cloud of unu sualsize and shape .我的媽媽讓我的叔叔注意一團(tuán)形狀大小很不規(guī)則的云彩。.What it was to become was uncertain, 它 會(huì) 變 成 什 么 沒(méi) 有 人 知 道 ，5 What it was to become是

4、一個(gè)主語(yǔ)從句，在整個(gè)句子中做主語(yǔ)；【聯(lián)想拓展】be to do這一結(jié)構(gòu)在本句中表示“即將”。betodo的其他用法：1）表示命令、義務(wù)、職責(zé)等，可譯作“應(yīng)該、必須”。長(zhǎng)輩要求晚輩做某事常用這一句型。2）表示將來(lái)要做的事，或按計(jì)劃、約定要做的事，這一用法主要用于正規(guī)文件中，可譯作“打算、將要”。3）表示不可避免將要發(fā)生的事，或命中注定的事。6 in time 來(lái) 得 及 ； 總 有 一 天， 遲 早I was just in time for the flight.【聯(lián)想拓展】in no time 立即，立亥Uat any time在任何時(shí)候at one time 曾經(jīng)，一度at times有時(shí)

5、，偶爾on time 按時(shí),準(zhǔn)時(shí)of the time現(xiàn)在的，當(dāng)時(shí)的【練習(xí)】用time介詞短語(yǔ)填空(1) Why are youin a hurry toleavehere? Get hometo bathethe children.(2)These busesare n everandthe passe ngers arealwayscomplai ning.(3)1 am away,please callmeifsome onecome toseeme.(4)Youcan imagine this lake used tobea beautiful place in our provine

6、e(5)Herushedout of thekitche nwhenheheardtheshout.I sitsile ntlyand won derifthis kind of job isworth alltheeffort.7 some small clever ani mals, now with hands and feet, appeared and spread all over the earth.一些小巧聰明，長(zhǎng)著手腳的動(dòng)物出現(xiàn)了，它們散布在地球各個(gè)地方。 spread(spread, spread) vt使伸展，延伸 vi.(消息等)傳開(kāi)，流行【聯(lián)想拓展】spread ou

7、t 傳開(kāi)spread rumors散布謠言8 They are putti ng too much carb on dioxide into the atmosphere, which preve nts heat from escap ing from the earth into space.preve ntsb./sth.(from)doi ng sth. 阻止 某人 或者某 事做 某 事His words can prevent us from buying books.與這種結(jié)構(gòu)相似的有 stop sb./sth.(from) doing sth. (from 可以省略)和 keep

8、 sb./sth. from doing sth.(from不可以省略)練習(xí)1. Weasleepthe teleph one rang.我們剛要入睡，這時(shí)電話(huà)響了。2. A car kno cked dow n a little boy.一輛小汽車(chē)不小心撞倒了一個(gè)小男孩。3. The orpha ns who lost their pare nts in the earthquake should beby our government.在這次地震中失去父母的孤兒應(yīng)該由政府撫養(yǎng)長(zhǎng)大。4and do what you like.去吧，做你喜歡的事。5. Hetell me the secretsome one patted him on the shoulder.他正要告訴我這個(gè)秘密，突然有人拍他的肩膀。6. It is impolite toothers for a long time.長(zhǎng)時(shí)間盯著別人看是不禮貌的。7. I am afraid I can tyou.我恐怕我不能允許我的女兒嫁給你。1. h