【名师A计划】2017高考英语一轮总复习汇编 第一部分 教材知识梳理 Unit 4 Cyberspace课件 北师大版必修2.ppt

重点短语 重点句型 重点单词 ?offer n. vt.提供;提议,报价,出价 vi.提议;供奉;呈现 Already,users can buy books,find out about holiday offers,book tickets,and get all sorts of information from the Internet.人们已经可以在网上购书,查询假日优惠,预订票务,并从网上获取各类信息。(教材原句P8) ◆常见用法 1.offer sb.sth.=offer sth.to sb.向某人提供某物 offer to do sth.=make an offer to do sth.主动要做某事 2.accept/take an offer (of sth./to do sth.)接受(做某事的)提议 turn down/reject an offer拒绝提议 The kind hostess offered us all a cold drink.好心的女主人为我们每个人提供了一杯冷饮。? Tony offered to drive me home.托尼主动提出开车送我回家。? 重点短语 重点句型 重点单词 ◆词义辨析 1.offer含有主动提供之意,常用offer sb.sth.或offer sth.to sb.结构。 2.supply含有“供给,供应”之意,表示“为某人提供某物”时,常用结构为:supply sb.with sth.=supply sth.for/to sb.。 The newspaper stand supplies the dustmen with free hot water every day.报摊每天免费为清洁工供应热水。 3.provide与supply意思相近,其常用结构为:provide sb.with sth.=provide sth.for sb.。 He was desperate for work to provide for a large family.他渴望有份工作来养活一大家子人。 重点短语 重点句型 重点单词 ◆现学活用 用offer的适当形式填空 1.A good listener takes part in the conversation,offering ideas and raising questions to keep the talk flowing. 2.John has really got the job because he showed me the official letter offering him it. 重点短语 重点句型 重点单词 ?harm n. vt.伤害,损害,危害 someone who does terrible things to harm countries,governments and people做坏事伤害国家、政府和民众的人(教材原句P8) ◆常见用法 1.harm sb./sth.伤害某人/某物 2.do/cause harm to sb./sth.=do/cause sb./sth.harm 对某人/某物有害 There’s no harm in doing sth.不妨做某事 Too much direct sunlight will harm the young plants.太多阳光直射将伤害这些幼苗。 This scandal won’t do serious harm to his career.这起丑闻不会对他的事业造成多大的伤害。? The teacher may not be able to help but there’s no harm in asking him.老师可能帮不了忙,但是问他一下倒也无妨。? 重点短语 重点句型 重点单词 ◆拓展延伸 1.harmful adj.有害的 be harmful to...对……有害 2.harmless adj.无害的,无恶意的 be harmless to...对……无害 Smoking is also harmful to non-smokers’ health.吸烟同样会危害不吸烟者的健康。 ◆词义辨析 1.hurt既可指肉体上的伤害,也可指精神上、感情上的伤害。 He felt hurt at your words.你的话让他很伤心。 2.injure比hurt正式,多指损害健康、成就、容貌等,强调功能的损失。 A bullet injured his right eye.一颗子弹伤了他的右眼。 重点短语 重点句型 重点单词 3.harm指肉体上、精神上的伤害,也可指引起不安或不便。 Don’t harm