牛津译林版（2019）选择性必修 第三册Unit 3 Back to the past Reading 学案（含答案）

Unit 3 Back to the past
Welcome to the unit & Reading
学习目标
1. 掌握本节生词、短语及句型的表达与运用。
2. 通过课堂练习，对课文内容有更深入的了解。
知识运用
1. convince
词性：_________ 意思：________
convince sb.(that)... 使某人相信……
convince sb.to do sth. 说服某人做某事
练习：I'm not ________(convince) he's on the level.
2. influential
词性：_________ 意思：________
influence on/upon...对.....的影响/作用
have an influence on...对......有影响
come/fall under the influence of..受......的影响
练习：She plays an ________(influential) role within the government.
3. panic
词性：_________ 意思：________
in (a) panic 惊慌地;处于恐慌中
get into a panic陷入恐慌(表示动作)
the panic over/about...对.....的恐慌
练习：The children fled in ________(panic).
4. insist
词性：_________ 意思：________
insist on/upon sth 坚称某事;坚决要求某事
insist on/upon doing sth 坚持要做某事
练习：She kept ________(insisit) on her innocence.
5. on behalf of
意思：________
on behalf of = on sb's behalf
练习：They campaigned on ________ of the homeless.
句型梳理
1. Those who make great discoveries must often overcome many challenges along the way-as was the case with as the explorer Christopher Columbus.
那些获得伟大发现的人必然要在这一过程中经常克服许多挑战--就像探险家克里斯托弗·哥伦布那样。
语法：as 引导非限制性定语从句
as引导非限制性定语从句时，代替整个主句，对其进行说明，有“正如……;就像……”之意。as 在非限制性定语从句中作主语、表语或宾语,通常用逗号将其引导的从句与主句隔开。
as引导非限制性定语从句的常用表达：
as is known(to all)/as we(all) know 众所周知
as is said/reported/expected 正如所说的/正如所报道的/正如所预料的
as is mentioned above 正如上面提到的
as I can see/remember 正如我所看到的/正如我所记得的
as is often the case 像往常情况一样
as often happens 正如经常发生的那样
As is known to Americans, Mark Twain is a great American writer. 美国人都知道,马克·吐温是一位伟大的美国作家。
【注意】as可指主句提到的事实或情况,因此其引导的非限制性定语从句的位置比较灵活，可以放在主句前或主句后也可插人主句之中；而which 引导的非限制性定语从句不能位于主句之前，which常译为“这一点”。
As she hoped, he won the championship.她如愿以偿,获得了冠军。
Oxygen, as we know, is a gas.正如我们所知,氧气是一种气体。
2. Regardless of all the challenges, to keep everyone out of danger with his knowledge and bravery across the ocean.不顾所有挑战，哥伦布设法凭借自己的知识和勇敢确保每个人都平安越过海洋。
语法：“keep+宾语 + 宾语补足语”结构
在“keep+宾语 +宾语补足语”结构中,宾语补足语可以是形容词、副词、介词短语、分词等。
Everybody must keep your clothes clean.大家必须保持衣服干净。
Please keep your hands behind your back请把手放在背后。
Remember to keep the engine running, for it is difficult to start.记住要让发动机保持运转，因为它发动起来很困难。
Please remain seated and keep your seat belts fastened.请坐好并系好安全带。
答案
知识运用
1. convince
2. influential
3. panic
4. insisting
5. behalf