（精選）新人教版高中英語選修八U2課文重點(diǎn)句匯集

1、新人教版高中英語選修八U2課文重點(diǎn)句匯集1. Cloning has always been with us and is here to stay. It is a way of making an exact copy of another animal or plant. It happens in plants when gardeners take cuttings from growing plants to make new ones. It also happens in animals when twins identical in sex and appearance ar

2、e produced from the same original egg. The fact is that these are both examples of natural clones.克隆一直與我們同在，而且它還要持續(xù)下去。這是一種用來生產(chǎn)與原型完全相同的動(dòng)植物的方法。當(dāng)園藝師從生長著的植物上剪下枝條來培植新植物時(shí)，就會(huì)產(chǎn)生這種現(xiàn)象。這種現(xiàn)象也發(fā)生在動(dòng)物身上，從同一個(gè)原生卵子產(chǎn)生性別和相貌相同的雙胞胎也是克隆。實(shí)際上，這些都是自然克隆現(xiàn)象。2. Cloning has two major uses. Firstly, gardeners use it all the time to

3、 produce commercial quantities of plants. Secondly, it is valuable for research on new plant species and for medical research on animals. Cloning plants is straightforward while cloning animals is very complicated. It is a difficult task to undertake. Many attempts to clone mammals failed. But at la

4、st the determination and patience of the scientists paid off in 1996 with a breakthrough - the cloning of Dolly the sheep. The procedure works like this:克隆技術(shù)有兩大用途。第一，園藝師一直用它生產(chǎn)大量的供商用的植物。第二，它在對(duì)新植物物種的研究以及在對(duì)動(dòng)物的醫(yī)學(xué)研究方面都是很有價(jià)值的?？寺≈参锖唵?，但克隆動(dòng)物就非常復(fù)雜了。這是一項(xiàng)很難完成的任務(wù)?？寺〔溉閯?dòng)物的多次嘗試都失敗了。但是，科學(xué)家的決心和耐心最終得到了回報(bào)，這就是1996年具有突破性

5、的克隆羊“多莉”的誕生。它的程序如下圖(略)所示：【pay off 得到好結(jié)果，取得成功(常用主動(dòng)態(tài))；償清債款；付清工資解雇  】pay off(指冒風(fēng)險(xiǎn)的政策、做法等)帶來好結(jié)果，成功，行得通。又如：The gamble paid off.賭贏了。1 Female sheep A provides an egg cell.2 The nucleus is removed from the egg cell.3 The egg cell is ready for a new nucleus.4 Female sheep B provides a som

6、atic cell for the clone. The nucleus of this cell contains all the genes needed to produce a new sheep.5 The nucleus is taken out of the somatic cell.6 The nucleus from sheep B and the egg cell from sheep A are joined using electricity.7 The cell divides and grows into an embryo.8 The embryo is put

7、into female sheep C，who becomes the carrier of the clone.9 The lamb is the clone of the donated cell from Sheep B which provided the nucleus.1 母羊(甲)提供一個(gè)卵細(xì)胞。2 在卵細(xì)胞中取出細(xì)胞核。3 卵細(xì)胞準(zhǔn)備接受新的細(xì)胞核。4 母羊(乙)提供一個(gè)供克隆的軀干細(xì)胞。該細(xì)胞應(yīng)包含有生產(chǎn)一頭新羊所需要的全部基因。5 取出該細(xì)胞的細(xì)胞核。6 用電把母羊(乙)的軀干細(xì)胞核和母羊(甲)的卵細(xì)胞連接起來。7 細(xì)胞分裂并生長成胚胎。8 把胚胎置入母羊(丙)體內(nèi)，母羊(

8、丙)就是克隆羊的代孕。9 這頭小羔羊就是母羊(乙)所提供的細(xì)胞核克隆而成的。3. Dollys death, like her birth, was bound to raise worries. 多莉的死亡，就像她的出生一樣，必定會(huì)引起人們的擔(dān)憂?！救私贪娼滩挠⒄Z8選修第2單元第14頁】The weather is bound to get better tomorrow. 明天天氣一定會(huì)變好。Youve done so much work that you are bound to pass the exam. 你下了這么大功夫，一定能考及格。4. The fact that she se

9、emed to develop normally was very encouraging. Then came the disturbing news that Dolly had become seriously ill. Cloning scientists were cast down to find that Dolly's illnesses were more appropriate to a much older animal. 多莉看來是在正常地成長著，這很令人鼓舞。接著傳來了多莉病重的壞消息。研究克隆的科學(xué)家發(fā)現(xiàn)多莉得的病更容易發(fā)生在年老的羊身上，這讓他們很沮喪。5

10、. On the other hand, Dolly's appearance raised a storm of objections and had a great impact on the media and public imagination. It became controversial. It suddenly opened everybody's eyes to the possibility of using cloning to cure serious illnesses and even to produce human beings. 另一方面，多

11、莉的出現(xiàn)引起了一陣強(qiáng)烈的反對(duì)，對(duì)媒體和公眾的想象力也產(chǎn)生了極大的影響。它引起了爭議。因?yàn)樗蝗淮蜷_了人們的眼界，看到了有可能利用克隆技術(shù)來治療重病，甚至還有可能克隆出人類。6. Although at present human egg cells and embryos needed for cloning research are difficult to obtain, newspapers wrote of evil leaders hoping to clone themselves to attain their ambitions. 盡管目前供克隆研究的人類卵細(xì)胞和胚胎很難獲得，

12、報(bào)紙報(bào)道說，有些邪惡頭目希望把自己克隆出來以實(shí)現(xiàn)他們的野心。7. Religious leaders also raised moral questions. Governments became nervous and more conservative. Some began to reform their legal systems and forbade research into human cloning, but other countries like China and the UK, continued to accumulate evidence of the abund

13、ant medical aid that cloning could provide. 宗教領(lǐng)袖也提出了道德方面的問題。各國政府惶恐不安而且更加謹(jǐn)慎。有些政府開始改革司法制度，明令禁止進(jìn)行克隆人類的研究，但是其他國家，如中國和英國，則仍然在繼續(xù)收集克隆技術(shù)有可能提供豐富的醫(yī)療救助的證據(jù)。8. The possibility of cloning fierce and extinct wild animals has always excited film makers. The popularity of films such as Jurassic Park, in which a scie

14、ntist clones several kinds of extinct dinosaurs, proves how the idea struck a mixture of fear and excitement into people's hearts. 克隆兇猛和滅絕的野生動(dòng)物的可能性一直使電影制片商感到興奮。在電影侏羅紀(jì)公園中，一個(gè)科學(xué)家克隆了幾種類型的恐龍，這部電影很受歡迎，這證明了使人恐懼又興奮地這種想法是多么的令人刻骨銘心。9. The advantage is that if there is a new illness some of these animals m

15、ay die,but others will survive and pass on the ability to resist that disease to the next generation. The great drawback to cloning a group of animals is that they would all have the same arrangement of genes and so might die of the same illness.優(yōu)點(diǎn)是如果有一種新的疾病，這些動(dòng)物中的一些可能會(huì)死亡，但其它的會(huì)存活下來并且把它們抵抗這種疾病的能力傳給它們

16、的下一代。經(jīng)過克隆的動(dòng)物群體的最大的缺點(diǎn)是：他們的基因排列有可能完全相同，因而他們有可能會(huì)死于同一種疾病。10. From time to time people suggest that the animals that have disappeared from the earth, like dinosaurs, can possibly be brought back to life through cloning.人們時(shí)常設(shè)想從地球上消失的動(dòng)物,例如恐龍,有可能通過克隆技術(shù)使它們復(fù)活。11. It is useless to clone an animal if there is n

17、ot enough diversity in the group for it to overcome illnesses. 該群中如果沒有足夠的多樣性使它克服疾病,克隆動(dòng)物就沒有用。12. Diversity in a group means having animals with their genes arranged in different ways. 群體多樣性意味著這群動(dòng)物的基因要以不同的方式排列。13. The advantage is that if there is a new illness some of these animals may die, but other

18、s will survive and pass on the ability to resist that disease to the next generation. The great drawback to cloning a group of animals is that they would all have the same arrangement of genes and so might die of the same illness. Then none of them would be left to continue the species. 其優(yōu)點(diǎn)是：如果發(fā)生了某種

19、新的疾病，這類動(dòng)物可能會(huì)死去，而另外一些卻能存活下來，并且把這種抗疫力傳給下一代。經(jīng)過克隆的動(dòng)物群體的最大缺點(diǎn)是:它們的基因排列有可能完全相同,因而 它們有可能會(huì)死于同一種疾病。14. Based on what we know now, you can not clone animals that have been extinct longer than 10000 years. 據(jù)我們現(xiàn)在所知, 絕種一萬年以上的動(dòng)物不能克隆。Unit 2 Cloning workbook 翻譯1. 我非常喜歡自家用黑麥粉做的含有堅(jiān)果的長方形面包。(adore; loaf; brown flour)I a

20、dore homemade rectangular loaves made with brown flour and nuts.2. 他非常保守，居然贊賞這個(gè)并沒有給移民選民帶來多少權(quán)利的憲法。(conservative; in favour of; constitution; immigrant voters)He is very conservative, and is even in favour of a constitution that gives few rights to immigrant voters.3. 當(dāng)合唱隊(duì)的領(lǐng)隊(duì)從劇院退休的時(shí)候，他們?yōu)樗e辦了一個(gè)宴會(huì)。(chorus; retire; opera; a dinner party)When the leader of the chorus retired from the opera, they held a dinner party for him.4. 媒體在影響公眾意見方面扮演著重要的角色。(the med