大學(xué)英語基礎(chǔ)教程(北大版)unit-1-恐龍滅絕(the-end-of-dinosaurs)(已修改)
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【正文】 Unit 1 The End of Dinosaurs [39。da?n?39。s?] n. 恐龍 Some questions for you to think ? On seeing this title, what do you think the text is going to tell us? ? What’s the reasons for such a huge animal disappear from the earth? ? Did people and dinosaur live at the same time? ? The text is going to tell us that the end of dinosaurs was caused by an asteroid(小行星 ) hitting the earth many years ago, which destroyed the natural conditions the dinosaurs depended on. Dinosaur n. 恐龍 Dinosaur ? Dinosaur— the mon name was given to a group of reptiles(爬行動物 ), often very large, that first appeared in the Late Triassic Period(三疊紀(jì)時代 ) about 215 million years ago and thrived worldwide for some 150 million years. Most died out by the end of the Cretaceous Period(白堊紀(jì)時代 ), about 65 million years ago. ? If all of Earth time from the very beginning of the dinosaurs to today were pressed into 365 days, the dinosaurs appeared January 1 and became extinct the third week of September. By parison, people have been on earth only since December 31. asteroid [39。230。st?r??d] n. 小行星 ? Asteroid is diameter (n. 直徑 ) that orbits (v. 環(huán)繞軌道 ) the Sun primarily between the orbits (v. 軌道 ) of Mars (n. 火星 ) and Jupiter (木星 ). It is because of their small size and large numbers relative to the nine major plas that asteroids are also called minor plas. The two names are frequently used interchangeably. A video about the end of the dinosaur Review the New Words ? 1. disappearance n. 消失，不見 ? dis(not, 不 ) + appear(顯示，出現(xiàn) )+ance(名詞后綴 ) Review the New Words ? 2. destroy v. 毀滅，破壞 ? de(to remove, to reduce，移開，減少 )。 ? 同根詞： destroyer (n.) 搞破壞的人 ? 同義詞： destruct。 damage。 kill Review the New Words ? 3. create (v.) 創(chuàng)造 ? 同根詞： creation (n.)創(chuàng)造 。 creative (adj.)有創(chuàng)造力的； ? 4. pollution (n.) 污染，污染源 ? 同根詞： pollute (v.) 污染 ? 5. survive (v.) 幸存 ? 同根詞： survival (n.)幸存； survivor (n.)幸存者 ? 6. constantly (adv.)持續(xù)地，不斷地；經(jīng)常地 ? 同根詞： constant (adj.)不變的；經(jīng)常的 ? 同義詞： unchanging。 continuous。 all the time ? 7. experience (v.) 經(jīng)歷 ? 同根詞： experience (n.)。 經(jīng)驗(yàn)；經(jīng)歷 ? 同義詞： e through。 suffer ? 8. allow (v.) 允許，提供 ? 同根詞： allowable (adj.)容許的 。 allowance (n. )津貼；限額 。 ? 同義詞： permit。 provide ? 9. evidence (n.)證據(jù)；證詞； ? 同義詞： proof ? 10. dominant (adj.)主要的；占優(yōu)勢的； ? 同根詞： ? dominate (v.)支配 。 domination (n.)控制；管轄 mamma
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