【正文】 I don39。 need v./modal(情態(tài)動(dòng)詞 )/n. ? 一、作情態(tài)動(dòng)詞 ? 1． need作情態(tài)動(dòng)詞無人稱或數(shù)的變化， 后接動(dòng)詞原形， 多用于否定句和疑問句中 。 這就使得大型魚類、鳥類還有像鱷魚和蜥蜴這樣的爬行動(dòng)物在以后得到了發(fā)展。 *along with = together with。 ? Some strange customs have survived from earlier times. ? 有些奇特的風(fēng)俗從早期時(shí)代中繼續(xù)保留下來。 with prep. because of 由于，憑借 ? With the help of my classmates, I worked out the difficult question. ? 由于同學(xué)的幫助，我做出了這道很難的題目。 ? 眼鏡蛇式世界上最致命的蛇之一。 ? 同根詞： destroyer (n.) 搞破壞的人 ? 同義詞： destruct。 all the time ? 7. experience (v.) 經(jīng)歷 ? 同根詞： experience (n.)。Teenagers39。 so...that... 如此 ……以至于 …… ? She was so sick today that she couldn’ t go to work as usual. ? 她今天病得太厲害了，以至于無法像往常那樣去上班。因此，它們有更為有利的生存機(jī)會(huì)。 *allow v. ? 1) let sb. do sth.。s. ? 這就使得大型魚類、鳥類還有像鱷魚和蜥蜴這樣的爬行動(dòng)物在以后得到了發(fā)展。 /是的，你得回答。 ? 。如： — Must I do the work now? 我必須現(xiàn)在干這個(gè)活嗎？ — Yes, you must /have ，你必須做。許多還沒有老鼠那么大 。銥是一種在地球上非常稀有而在小行星上很常見的元素。 ? Are you sure that you worked out the correct answer? ? 你能確定你做出了正確的答案？ ? *be sure of/about sth. ? be certain of sth. 對(duì) ……有把握 ? I hope you are sure of your facts. ? 我希望你能對(duì)事實(shí)有把握。據(jù)認(rèn)為，這種變化使得地球上四分之三的生物毀滅了。 ? The soup didn’t agree with my taste. ? 這種湯不合我的口味。 domination (n.)控制；管轄 mammal [39。Unit 1 The End of Dinosaurs [39。 provide ? 9. evidence (n.)證據(jù)；證詞； ? 同義詞： proof ? 10. dominant (adj.)主要的；占優(yōu)勢(shì)的； ? 同根詞： ? dominate (v.)支配 。 agree on/about 同意，達(dá)成一致 agree with sb. on/about sth. 就某事與某人達(dá)成一致 agree with sth. 與 …… 相合；一致 agree to sth. （尤指不樂意或爭(zhēng)論之后的）同意；贊成 ? We agreed on the plan. ? 我們同意這項(xiàng)計(jì)劃。結(jié)果引起了地球上天氣的巨變和海洋污染。 ? The dead wood were pruned away, _______________ the tree _______________________________growth. ? The dead wood were pruned away, therefore, the tree has a better chance of growth. ? *be sure (that) ? be certain (that) 確保，肯定 ? I was sure (that) I locked the door last night. ? 我確定昨晚我鎖好了門。 那時(shí)，科學(xué)家們發(fā)現(xiàn)有一層薄薄的銥覆蓋在地球表面。 第六段 譯文 ? 許多哺乳動(dòng)物生存下來了。t have to。 必要 ? I don39。 /No, you needn39。 ? This allowed for the later development of large fish, birds and reptiles such as crocodiles and lizards. ? 蓬勃的房地產(chǎn)業(yè)使得城市化迅速發(fā)展。 let sth. happen 允許 ? His parents won’ t allow him to stay out late. 他的父母不允許他在外面呆到很晚。 Sentence Structure ? 這次事件對(duì)恐龍這樣的大型動(dòng)物來說是毀滅性的打擊。 ? It seems that the asteroid was so huge and hit the earth with such a strong force that it created a hole which was at least 200 kilometers across. ? 似乎可以推斷這顆小行星的體積如此巨大，撞擊地球的威力如此強(qiáng)烈，以至于給