Unit 4 Exploring plants 导学案1.doc

Unit 4 Exploring plants导学案1. date back to 追溯到，后接点时间，在句中做谓语时，常用一般现在时，无被动态。date from date back 意为“追溯；存在”， 后接“段时间”eg. The Great Wall of China dates back to the third century B.C. The beautiful folk legend dates back more than 300 years. 2. scale n. 1)磅秤；天平盘 a pair of scales 一台天平 a spring scale 弹簧秤 weigh sth. In the scale 用秤称2) 规模； 程度； 范围（与on 连用）on a large/ big/ vast / grand scale 3. conflict n.(c.或 u.) / vi. 斗争 Eg. 1) Some people feel there is a great deal of between religion and science.2)The two parties have been in since the election. 3) Do British law with any international laws?4. tight adj. 紧的； 紧密的 a knot 打的紧紧的结 a rope 绷紧的绳索a ship 不漏水的船My shoes are too 5. seal n. 1) 海豹 2）封口； 封条 vt. 封闭eg. an envelopMy lips are sealed, I wont tell you. 我现在守口如瓶，不会告诉你的。6. appeal to(prep.) sb. 对有吸引力 appeal to sb. for sth. 为某事向某人呼吁 appeal to sb. to do sth. 呼吁某人做某事eg. This idea ed to his father. We are ing to the government for food and clothes. The government is ing everyone to save the water. 7. attach sth. to (prep.) 把 系在上 attach to 与 有联系 attach importance/ significance/ value/ weight to sth. 认为有重要性(意义，价值，分量)be attached to 爱慕 依恋; 附属于Eg.1)Please this label to the bottle. 2) Do you live in a bedroom with a bathroom attached? 3) This institute is ed to the University of Texas. 这个研究所附属于得州大学。4) I am very much ed to that old car. 5) Most people attach great importance to their childrens education.8. distant adj. 远的 a relative distance n. 远方；距离 in the distance at a distance keep sb. at a (对某人) 保持距离 9. fluency n. 流利 fluent adj. 流利的 flu n. 流感 speak English with fluency speak fluent English10. botany (u. n. ) 植物学 Botany Bay 植物湾 botanist (c.n.) 植物学家 botanical adj. 植物学的 garden 植物园11. beard n. 下巴上的胡须 wear a 留胡须 mustache n. 唇上的胡须 whiskers n. 脸颊的胡子Warming up and reading1. adapt toadapt (oneself) to be adapted to eg. Our eyes slowly adapted to the dark. We adapted ourselves to the hot weather.2. Sb. be familiar with sth. Sth. be familiar to sb. Eg. He is familiar with the plants names. = The plants names are familiar to him.3. 比较：far away, far-away, far away from, far from1）far away 作表语或状语； away 可以省去； 也可作后至定语。2）far-away 作前至定语3）far away from 只表距离， away 可省去。4）far from 除表距离外， 还有 “远远不， 完全不， 并非” 之意， 后接名词， 动名词或形容词 eg. They dont live far(away). They live at a far-away place. The school is far(away) from my house.I am far from ( being) happy in my present job. 一点也不满意-Are you cold?-Far from it! 怎么会（反而有点热）4. as 作关系代词 Eg. He was a foreigner, as I knew from his accent. Dont read such books as you dont understand. As is known to all, China is stronger and stronger.5. times 1）时代 in modern times/ fall behind times 2）境况，日子，时势 Times have been good since 1980. 3) 倍数，次数6. bring back / up/ in / about/ sb. back to life 7. send away 把送往别处，解雇，打发走 Eg. He sent his son away to school in Germany. send up / for/ off = see off / out (发送，发出)8. opportunity (C; U) 机会；良机 have an to do sth./ doing sth. catch/ seize/ take an give/ offer an 比较: opportunity/ chanceopportunity 多指特殊的机会，含期待的意味，而chance多指偶然的机会，含侥幸之意；有时可互换，但chance 还可表可能性。Eg. There is a chance that he may be alive.9. introduce A to B 把A 介绍给B Introduce oneself Introduce into/ in sp. 把某物引进某地10. purpose: on purpose with the purpose of for the purpose of Whats the purpose of doing sth? to the purpose 中肯地11. ruin vt. 毁灭；毁坏 + 宾语 n. (C.) 废墟；遗迹；复数加 s (U.) 毁坏，破坏 Eg. She poured water all over my painting and ed it. We saw the s of the church. Drink led to his . 酗酒把他毁了。短语: in ruins 成为废墟 / go into ruin/ come into ruin(毁灭) /ruin ones hopeReading 212.over time 经过一段时间Eg. Can you stay over Sunday?13. reward n. 报酬，报答，奖赏 vt. 奖赏,酬劳Eg. She got nothing in for his kindness. He got a of $ 500. I shall him for his