人教版必修5Unit3Life in the future单词学案2.doc

Unit3 Life in the future单词学案2课题: Unit3 Life in the future 教学重点：单词的记忆及理解课前准备：请同学们提前阅读导学案内容，了解课堂上要完成的任务，并做好以下准备：预习导学案，读熟第三单元单词Teaching Steps :（教学步骤）Step 1：Have a check -复习上节课内容Step2：learn the following words and expressions自学下列的单词，不会的地方标出，自己查字典或等待老师的解决。12.bend/bent/ bent v 使弯曲 n .弯a sharp bend in tube 管的陡曲处 make/take a bend 转弯 a sharp bend 一个急转的弯bend down 弯身He bent down and picked it up .他俯身把它捡起来。13.press (1)v.压；按；推；榨；He pressed the doorbell. 他按了门铃。Some drinks are made by pressing fruit. 有些饮料是压榨水果制成的。2）挤He pressed his way through the crowd. 他挤过人群3)紧迫，敦促 Time presses. 时间紧迫。Well let you know if anything presses. 如有紧急情况,我们会通知你的4） 新闻界，新闻记者UThe power of the press is very great. 新闻界的力量非常强大。5) 出版社，出版业，印刷机 the University Press 大学出版社14. optimistic/ pessimistic （常与about连用） 乐观的 / 悲观的 We should be optimistic about the future.我们应该对未来乐观。Theres no reason to be pessimistic about the future.没有理由对未来悲观。optimist 乐观主义者 optimism 乐观主义 pessimist 悲观主义者 pessimism 悲观主义15.switch n 开关 ，转换 v 转移，转换You pressed the wrong switch.你按错了开关。He switched the light on .他打开了灯。switch on /off 接上/切断（电流） switch to 转（换）到 At first， the speaker was referring the problem of air pollution，but suddenly he switched to another subject.(转到)16.opportunity 机会 take the opportunity to do sth =take the opportunity of doing sth 趁机.Let me take the opportunity to say a few words.请让我趁此机会讲两句。Opportunity comes but once.机不可失，时不再来。17.enormous adj巨大的an enormous amount of money 巨款18.imitate v 1)模仿Jane imitates the cuckoo.简模仿布谷鸟的叫声。 2). 以.做为范例,仿效I wish you would imitate your brother a little more.我希望你多学学你的兄弟。 3). 仿制;伪造It was some kind of plastic made to imitate iron.这是一种塑胶,但外观仿制得像铁。 19.assist v 援助 assistance n 援助 assistant 助手，助理1)帮助,协助(+with/in)We asked him to assist us in designing a new bridge.我们请他帮助我们设计一座新桥。 2)到场,出席(+at)She refused to assist at the reception for reasons unknown.不知什么缘故她不肯出席招待会。 3)assist in 帮助，援助He assisted in designing the new bridge. 他协助设计那条新桥。 20.require v 需要，要求The roof requires repairing.屋顶需要修理了。 This project will require less money. 这项工程所需的投资较少。 We require extra help .我们需要额外的帮助。The situation requires that I(should) be there.情况需要我在那儿。归纳require的用法：_21.mood n 心情，情绪I am not in the mood to argue.我没有心情争辩。 She is in a good mood today . 她今天心情很好。22.sight U目光，视力lose ones sight 失明 catch sight of 看见 at the sight of 看到.lose sight of 看不见 in sight 看得见out of sight 看不见 at firstsight 乍一看He lost his sight in the war. 他在那次战斗中失明了。There is not a tree in sight. 一颗树也看不见The train was soon out of sight. 很快火车就看不见了。_ _（乍一看），theproblemseemedeasyI_（看见）her getting on the bus when I came out of the bookstore.23.sweep up 打扫，横扫，掠过The strong wind swept up the leaves off the street. 大风把街上的树叶扫光了。After all the guests had left, I swept all the mess.所有的客人离开后，我打扫了所有垃圾。Step4 ：词语辨析ache/ pain两者均可表示“疼痛”，区别如下：1. ache 主要指肉体局部持续的疼痛或隐痛；而 pain 的应用范围则较广，可指轻微的痛或剧烈的痛，可指局部的痛或全身的痛，可指持续的痛或突发的痛等。如：The ache in his back lasted for two days. 他的背痛了两天。The boy cried with pain. 这男孩痛得哭了起来。注：有时两者都可用。如：I have an ache a pain in the back. 我背痛。有时两者可连用。如：My body was all aches and pains. 我浑身疼痛。2. 由于 ache 通常用于指局部的持续性疼痛，所以它经常与某些表示身体部位的词构成合成词，表示身体的某处疼痛(此时通常不用 pain)。如：headache (头痛)，toothache (牙痛)，stomachache (胃痛)，earache (耳痛)，backache (背痛)，等等。另外注意：这些带 -ache 的复合词，除 headache 为可数名词外，其余的则既可用作可数名词(主要见于美国英语)，也可用作不可数名词(主要见于英国英语)。3. 用于引申义表示精神或感情上的痛苦时，通常用 pain。如：The death of his father gave him much pain. 他父亲的死使他很悲痛。His harsh words caused her much pain. 他说的话很刺耳，她听了很不舒服。 Step：当堂检测I.单词拼写：1. As soon as you know the answer, please p_the button.2. He is not fit for the sales promotion,for he l_skills in persuading.3. We are ready to overcome any difficulties and make a difference if we are O_ about our future.4. F_of lighting made me see clearly the way to the office.5. There are several touring _(代理）in the city ;you can ask any one of them for help.II.英汉互译：1. .一个急转的弯_2.press the doorbell_3. 对.乐观_4.接上/切断（电流）_5. 转（换）到_6.趁机._7. 巨款_8.援