北师大版英语选修七 Unit 20　New Frontiers 知识点课件52张PPT

课件52张PPT。
选修模块 7　Unit 20　 New Frontiers
1.assist vt.帮助;协助;援助
教材原句
①The new international crew are planning to take over from the existing one and 　assist????(assist) with...单句填空
②I had a teaching 　assistant????(assist) in class whose creativity would in-fect other students.(2016课标全国II阅读理解)
③Owing to her 　assistance????(assist), we succeeded in starting the engine.
④The patient was able to walk 　with???? the assistance of a nurse.完成句子
⑤A team of nurses　assisted????the doctor　in????performing the operation.
一组护士协助医生做了手术。
⑥We will have robots and computers to　assist us with????the things that are boring.
至于那些枯燥无味的事情,将由机器人和电脑来帮助我们处理。点拨
(1)assist sb. with sth.帮助某人某事
assist sb. to do/in doing sth.帮助某人做某事
(2)assistance n.援助,帮助
with the assistance of...在……的帮助下
come to one's assistance来帮助某人
(3)assistant n.助手,助理,助教;adj.助理的2.conflict n.冲突;矛盾;争执 v.冲突;抵触
教材原句
①There will therefore no longer 　be any conflict???? and people will be able to live together in peace and equality. 所以将不会再有任何冲突,人们将能够在和平与平等中生活在一起。单句改错
②She often comes into conflict for her father-in-law.
　for→with????
③Now, she is on conflict with her parents over her future career.
　on→in????写作微练
④在处理人际关系时,我们应努力阻止个性方面的冲突。
　In dealing with public relations, we should make every effort to prevent the conflict in personality.????点拨
(1)come into conflict with sb. over sth.
和某人在某事上产生冲突/矛盾
in conflict with和……冲突;和……不一致
armed conflict武装冲突
(2)conflict with与……发生冲突3.rescue vt.营救;救出 n.拯救,救援
教材原句
①Dave also goes outside the ship 　to rescue????(rescue) Frank, and HAL refuses to let him back in. 单句填空
②I was the first Western TV reporter permitted to film a special unit car-ing for pandas 　rescued???? (rescue) from starvation in the wild.(2016课标全国I语法填空)
③It was with the help of the local guide that the mountain climber 　was rescued????(rescue).单句改错
④You rescued her a very embarrassing situation.
　her∧→from????点拨
(1)rescue sb./sth. from...从……中把某人/某物救出来
come to one's rescue/the rescue of sb.援救某人
(2)rescuer n.救助者;援救者;救援人员单句填空
②Georgia did decide to donate a large bag of toys 　to???? a little girl.(2018课标全国Ⅲ阅读理解)单句改错
③The goods in this charity shop often donated by the public.
　∧often→are????点拨
(1)donate sth. to...向……捐献某物
(2)donation n.捐赠;捐献;捐赠物
make a donation to...向……捐赠
collect donations for...为……募捐5.correspond vi.通信;相一致,符合;相当于
教材原句
①...the way 　we correspond???? went from 　writing letters???? to emailing.
……我们通信的方式从写信过渡到了发电子邮件。单句填空
②His interest in writing came from a long　correspondence????(corre-spond)with a close college friend.
③I　have corresponded????(correspond)with her for long, but I have never met her in the flesh.单句改错
④Investment in the railways will bring a correspondence improvement in services.
　correspondence→corresponding????写作微练
⑤随着通信的普及,人们网上交友变得越来越方便。
　With the popularity of correspondence, it is becoming more and more convenient for people to make friends online.????点拨
(1)correspond to/with...和……一致
correspond with...和……通信
(2)correspondence n.来往信件;通信;相似
in correspondence with...与……有通信联系
correspondent n.记者,通讯员
(3)corresponding adj.符合的,相应的,相关的6.cure vt.治愈;改正;矫正 n.治愈;痊愈;疗法
教材原句
①...when Fleming's discovery was first helping 　to cure????(cure) people, the US Navy was looking for ways of improving the accuracy of their mis-siles. 单句改错
②Who was it that cured the old professor in his cancer?
　in→of????
③Some researchers believe that a cure of AIDS will be found.
　of→for????活学巧用(用cure,treat,heal或recover填空)
④I hope the doctor can 　cure????the pain in my shoulder.
⑤We must　treat???? everybody alike.
⑥Doctors do their best to　treat????the sick,but they can't perform a mira-cle.
⑦How long will it take for the broken bone to 　heal????up?
⑧He is in hospital,　recovering????from a heart attack.完成句子
⑨It was a long time before the cut on my hand　healed????completely.
过了很长一段时间我手上的伤口才愈合。
⑩The way the students　are treated????in the school influences their evalu-ation of the education.学生在学校受到的对待方式影响他们对教育的评估。点拨
a cure for sth.医治……的方法
cure sb. of sth.治愈某人的病;改掉某人的坏习惯
【温馨提示】　类似结构参见Unit 13【辨析】7.permit v.允许,准许 n.许可证
教材原句
①You are not permitted 　to work????(work) if you are on a student visa. 单句填空
②At no time will smoking 　be permitted????(permit) here.
③The rules of the school do not permit 　parking????(park) near the school gate.
④It's strange that he should have taken the books without the owner's
????permission????(permit).(2018江苏卷)单句改错
⑤You can't take photographs here in being permitted.
　in→without????
⑥Without a driver's license, you are not permitted drive the car.
　∧drive→to????点拨
(1)permit sb. sth.允许某人某事
permit doing sth.允许做某事
permit sb. to do sth.允许某人做某事
(2)permission n.允许,许可
ask for permission请求许可/允许
without(one's)permission未经(某人)同意/允许/许可
with one's permission在某人的许可下8.declare vt.宣称;宣布;宣告;声明;表明
教材原句
①NASA 　declared????(declare) that a rock from Mars proved...单句填空
②The newly-elected president declared　for????their action, meaning that he　declared????(declare)it to be legal;as a result, he must be responsible for his　declaration????(declare).完成句子
③Yesterday, nobody 　declared against the plan???? for next term.
昨天,没有人声明反对下学期的计划。点拨
(1)declare sb./sth.(to be/as)...宣布/表明某人或某物(是)……
declare for/against声明赞成/反对
declare oneself+adj.宣称自己……
declare sth.+adj.宣布某物……
declare war on(向……)宣战
declare that...宣称……
(2)declaration n.声明;宣言rather than 而不是
教材原句
①Due to China's rapidly developing space programme, this could be sooner rather 　than???? later. 单句填空
②We would rather our daughter 　stayed????(stay) at home with us, but it is her choice, and she is not a child any longer.
③He played computer games till late last night, 　or???? rather, early this morning. 单句改错
④As far as I can judge, it is he, rather than you, that are to blame.
　are→is????
⑤The sweater she bought was beautifully rather than cheap.
　beautifully→beautiful????完成句子
⑥I would rather that 　you hadn't done that thing???? yesterday morning.
我宁愿你昨天上午没有做那件事。完作微练
⑦勇于面对你的问题而不是逃避它们才是解决事情的最好办法。
　Facing up to your problems rather than running away from them is the best approach to working things out.????点拨
(1)rather than连接两个名词或代词作主语时,谓语动词遵循“就远原则”,类似的还有as well as、(together/along)with、including等。
(2)or rather更确切地说
(3)would rather(not)do sth.宁愿(不)做某事
【温馨提示】　“宁愿……也不……”的多种表达参见Unit 1
【点津】????would rather后接宾语从句时,从句用虚拟语气形式,谓语用过去式(be用were)表示对现在或将来虚拟,用had done表示对过去虚拟。
1.by+时间点
教材原句
①By the year 2015, the clothing industry 　will have produced????(pro-duce) new types of material that will remain stainless no matter what you spill on them. 单句填空
②He said he 　had waited???? (wait) for two hours by the time we got to the railway station.
③The construction of the two new railway lines 　has been completed???? (complete) by now.
④Tommy is planning to buy a car and he 　will have saved???? (save) e-nough for a used one by next month.
⑤By the time he 　was???? (be) twelve, Edison had begun to make a living by himself. 单句改错
⑥The committee is discussing the problem right now and it will hopefully have solved by the end of next week.
　∧solved→been????写作微练
⑦到下个学期末为止,我们将学习3,000多个英语单词。
　We will have learned over 3,000 English words by the end of next term. ????点拨
“by+时间点”意为“到……时为止”,常与完成时态连用。
(1)by+将来时间点,句子谓语动词常用将来完成时,表示到将来某时已完成的动作。
(2)by+过去时间点,句子谓语动词常用过去完成时,表示到过去某时已完成的动作。
(3)by now意为“到现在为止”,句子谓语动词常用现在完成时。2.no matter what引导状语从句
教材原句
①By the year 2015, the clothing industry will have produced new types of material that will remain stainless no matter 　what???? you spill on them. 单句填空
②No matter 　how???? many times I asked to watch cartoons, my parents would not let me. (2018课标全国Ⅱ短文改错)
③As many as five courses are provided, and you are free to choose
????whichever???? suits you best.
④Each person, no matter 　who???? they are, has psychological imbalances. (2018北京卷七选五)单句改错
⑤One can always manage to do more things, no matter when full one's schedule is in life.
　when→how????写作微练
⑥通常,无论我们多远、多忙,我们都将努力回家庆祝中秋节。
　Usually, no matter how far away or how busy we are, we will try to come home to celebrate the Mid-Autumn Festival.????点拨
(1)“no matter+疑问词”,意为“不论/不管……”,只引导让步状语从句,不引导名词性从句。
(2)whatever,whoever,whichever,whomever既可引导让步状语从句(相当于no matter what/who/which/whom),也可引导名词性从句。
(3)whenever/wherever/however相当于no matter when/where/how,用于引导状语从句。
【点津】????whatever和whichever在引导从句时,可在从句中作主语和宾
语,还可作定语。
3.There is no doubt...
教材原句
①There is no doubt 　about???? it. 单句填空
②I doubt 　if/whether???? they can swim across the river.
③There is no doubt 　that???? it is unwise to depend completely on the rat-ings in consumption.(2018江苏卷书面表达)
④If you have any doubts　about???? your health, you'd better consult your doctor at once. 句式升级
⑤There is no doubt about the success of our experiment.
→　There is no doubt that our experiment will succeed.????(使用复合句)写作微练
⑥毫无疑问,健康比财富重要。
　There is no doubt that health is more important than wealth.????点拨
be in doubt拿不准;不肯定
no doubt无疑;很可能
without/beyond doubt毫无疑问