人教版 选修9unit 4 Exploring plants知识点.ppt

* mimosa 1. familiar be familiar with 熟悉；通晓 be familiar to 为…所熟悉 He is ~ with English. He is ~ with this city. This city is ~ to him. 2. date back to= date from 奥运会可以追溯到古希腊时期。 The Olympic Games can ~ the ancient Greek times. 我们的友谊始于中学时期。 Our friendship ~s from our high school days. 这座建于12世纪的城堡非常漂亮。 The castle dating back to/dating from 12th century is very beautiful. 3. Howere, it was not until… that … It was not until he came back that Mother went to bed. 直到他回来，妈妈才去睡觉。 Mother didn’t go to bed until he came back. Not until he came back did Mother go to bed. It was for this reason ____ her uncle moved out of New York and settled down in a small village. A. which B. why C. that D. how 4 .scale 尺度,衡量, 天平,等级；比例（尺）;规模 He put the meat on the ~s. The ~ of this map is one centimeter to one kilometer. the ~ to measure one’s abilities on a large/small scale ”大/小规模的“ It _____ the twins who helped the old man several days ago.? A. was???? B. are???? C. were?????? D. had been 他们正在大规模地备战。 They are preparing for war on a large scale. 5. opportunity 抓住……机会 提供……机会 错过……机会 take/ seize/ catch the ~… give/offer an ~… miss/ lose the ~… 6. 现在分词短语做伴随状语 他们又说又笑地走进房间。 他给我发了电子邮件，希望得到进一步的信息。 Laughing and talking, they went into the room. He sent me an e-mail, hoping to get further information. 7. accompany vt. 陪伴, 伴随, 伴奏 他陪他的朋友去看电影。 雷声常常伴随着闪电而来。 他在太太演唱时时常为她伴奏。 He accompanied his friend to the film. Lightning usually accompanies thunder. He often accompanies his wife in her recital. company: I enjoyed his company.我喜欢他和我结伴。 in company with 在...陪同下 keep sb. company 陪伴某人 keep company with 和...常来往 companion n. 同伴, 共事者，伴侣； 8. restriction n. 限制, 约束；~ on 有一条禁止在学校吸烟的限制。 There is a restriction on smoking in schools. place/ impose/ enforce a ~ on prices / speed 对……实行限制 restrict vt. 限制, 约束, 限定 She ~s herself to one