大學(xué)英語(yǔ)基礎(chǔ)教程(北大版)unit-1-恐龍滅絕(the-end-of-dinosaurs)-資料下載頁(yè)
2025-08-05 05:17本頁(yè)面
【正文】 the news. 正是三星期后我們才得知這條消息 ? *dominant ? ；占優(yōu)勢(shì)的；顯性的 ? ；顯性基因 ? Peace was the dominant theme of the conference. ? 和平是大會(huì)的首要議題。 ? The British were formerly dominant in India. ? 英國(guó)人從前統(tǒng)治印度。 第六段 譯文 ? 許多哺乳動(dòng)物生存下來(lái)了。許多還沒(méi)有老鼠那么大 。 正如今天許多像松鼠這樣的小哺乳動(dòng)物可以冬眠一樣，它們能在災(zāi)難中最?lèi)毫拥奶鞖饫锒?。事?shí)上，人類(lèi)是幸運(yùn)的。如果我們?nèi)祟?lèi)生存在恐龍時(shí)代，很可能我們也被毀滅了。也可能正是由于恐龍從地球上消失的緣故，大型哺乳動(dòng)物才出現(xiàn)在地球上，從而最終導(dǎo)致哺乳動(dòng)物中最具統(tǒng)治地位的人類(lèi)的出現(xiàn)。 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(wú)人稱(chēng)或數(shù)的變化， 后接動(dòng)詞原形， 多用于否定句和疑問(wèn)句中 。如： You needn‘t 。 ? 2．由 need引出的一般疑問(wèn)句，肯定回答常用 must或 have to。否定答語(yǔ)常用 needn39。t. 如： — Need I answer the question? 我需要回答那個(gè)問(wèn)題嗎？ — Yes, you must. /Yes, you have ，你必須回答。 /是的，你得回答。 /No, you needn39。，不必了。 3．由 must引出的一般疑問(wèn)句，肯定回答用 must,否定答語(yǔ)用needn39。t或 don39。t have to。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。/No, you needn39。t /don39。t have to. 不，你現(xiàn)在不必做。 ? 二、作行為動(dòng)詞 need ? 作為行為動(dòng)詞有人稱(chēng)和數(shù)的變化， 后面可接名詞、代詞、動(dòng)名詞及帶 to 的動(dòng)詞不定式； ? 可用于肯定句、疑問(wèn)句和否定句中，如： She needs 。 I don39。t need to see the 。 — Do you need to go at once? 你需要馬上走嗎？ — Yes, I 的，我得馬上去。 — No, I don39。，不用馬上走。 ? 。 必要 ? I don39。t think there39。s any need for that. ? 我認(rèn)為沒(méi)那必要 . Vocabulary ? 1. have discovered ? 2. hit ? 3. destroying/to be destroyed ? 4. were blocked ? 5. are... allowed to ? 6. disappeared ? 7. to hibernate ? 8. survived ? 9. experienced ? 10. to create Expressions ? 2. He was the sort of person you could depend on. ? 3. Along with some decoration, I got what we needed at the party in the supermarket. ? 4. She is a talented musician as well as a creative photographer. ? 5. An interesting article about cloning on today’s newspaper attracted my attention. ? 6. The police tried to find out what led to the young man killing his own father. ? 7. I hope you are sure that all facts are against you on the court. ? 8. This device can be used to block out the noise. Translation ? 1. The reason of dinosaurs’ disappearance attracts many scientists’ attention. ? 2. He seems to agree on my suggestion. ? 3. The weather was so hot that we had to stop our class. ? 4. Are you sure that the student who wears a pair of glasses borrowed your book? ? 5. After the exam, you should at least check the test paper. ? 6. The life of this family depends on the father’s ine. ? 7. After the asteroid hit the earth, some small mammals survived. ? 8. Teenagers under 18 years old are not allowed to enter the bar.
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