八级英语上册 Unit 7 Will people have robots Section B备课资料教案 （新版）人教新目标版.doc

unit 7will people have robots? section b1.today there are already robots working in factories.今天,已经有机器人在工厂工作了。already副词,意为“早已;已经”,多用于肯定句中,用于疑问句时表示惊讶和意料之外。如:he has already left.他已经离开了。【拓展】already一般于用肯定句;否定句或疑问句中则用yet。如:has he finished the work yet?他已经完成那项工作了吗?i havent finished it yet.我还没有完成它。2.some can help to build cars,and they do simple jobs over and over again.有些可以帮助制造小汽车,它们可以反复地做一些简单的工作。simple形容词,意为“简单的;简易的”。同义词是easy,反义词是hard/difficult。如:i can write some simple french articles.我能写一些简单的法语文章。over and over again意为“反复地;一遍又一遍地”。如:he thanked me over and over again.他反复地向我表示谢意。3.however,some scientists believe that although we can make robots move like people.然而,一些科学家认为虽然我们能够使机器人像人们一样活动believe此处用作及物动词,意为“相信;认为有可能”。如:you cant believe anything she says.你不能相信她说的任何事情。its hard to believe that he is only 10.很难相信他只有10岁。【拓展】believe sb.意为“相信某人(所说的话是真的)”;believe in sb.意为“信任某人”。如:i believe him,but i cant believe in him.我相信他说的话是真的,但我不能信任他。注意:believe通常不用于进行时态。4.for example,scientist james white thinks that robots will never be able to wake up and know where they are.例如,科学家詹姆斯怀特认为机器人将永远不能醒来并知道它们在哪里。【辨析】be able to与canbe able to意为“能够”,强调能力,有时态、人称和数的变化,可用于各种时态,不与can连用can意为“能;会”,无人称和数的变化,只有一般现在式和一般过去式两种形式if i dont do this,i wont be able to sleep tonight!如果不这样做的话,今晚我会睡不着的!can you finish the work on time?你能按时完成这项工作吗?wake up意为“醒来”。wake sb.up意为“把某人唤醒”,代词须放在wake与up之间。如:i usually wake up at 6:30.我通常6点半醒来。his mother often wakes him up at 5:00 in the morning.他妈妈经常早上5点把他叫醒。5.but many scientists disagree with mr.white.但许多科学家不同意怀特先生。disagree不及物动词,意为“不同意”,其反义词为agree。如:bill and kate often disagree but they are good friends.比尔和凯特常常意见不同,但他们是朋友。i disagree with you.我不同意你的意见。巧记:dis(否定前缀)+agree(同意)disagree(不同意)【拓展】able(能,会)disable(使丧失能力)like(喜欢)dislike(不喜欢)appear(出现)disappear(消失)believe(相信)disbelieve(不相信)6.however,they agree it may take hundreds of years.然而,他们也赞同那将需要几百年的时间。这是一个含有宾语从句的复合句。they agree为主句,it may take.作agree的宾语,为宾语从句。hundreds of意为“大量的;许多的”,其前不能用具体的数字修饰,其后跟复数名词。注意:英语中表示确数的方法为“基数词+计数单位的单数(hundred,thousand,million,billion)+名词复数”;表示概数的方法为“计数单位的复数(hundreds,thousands,millions,billions)+of+名词复数”,其前不能有具体的数词,但是可以有表示抽象概念的词some,a few,many,several等。如:there are six hundred workers in the factory.工厂里有六百名工人。thousands of visitors have come to hangzhou in the past two weeks.过去两周有成千上万的游客来到了杭州。巧记:模糊数字两有(有s,有of),具体数字两无(无s,无of)。7.if buildings fall down with people inside,these snake robots can help look for people under the buildings.如果建筑物倒塌了,里面有人,这些蛇形机器人能帮助寻找建筑物下的人。fall down意为“突然倒下;倒塌”。如:babies often fall down when they learn to walk.婴儿在学走路时经常会摔倒。the tower probably will not fall down.这个塔也许不会倒下。look for意为“寻找”,强调寻找的动作。如:what are you doing?你在做什么?im looking for my pen.我在找我的钢笔。8.this was not possible 20 years ago,but computers and rockets also seemed impossible 100 years ago.20年前这是不可能的,但是在100年以前,电脑和火箭似乎也是不可能的。possible形容词,意为“可能的”,其反义词为impossible,意为“不可能的”。如:well start as early as possible.我们要尽早出发。dont ask me to do impossible things.别叫我做不可能的事情。【拓展】as.as possible“尽可能地”,两个as中间用形容词或副词原级。如:as soon as possible尽可能快(指时间)if possible“如果可能的话”。如:if possible i want to go to the usa for study.如果可能的话,我想去美国学习。9.so ill probably just like a bird.因此,我可能就像一只鸟。probably副词,意为“也许;大概;可能”,常用作状语。如:he probably told his father all about the matter.他可能把这一切都告诉了他的父亲。【辨析】probably,maybe与perhapsprobably常用于句中,maybe相当于perhaps,常用于句首。另外probably比maybe和perhaps表达的可能性大。如:he will probably come tomorrow.他很可能明天来。maybe/perhaps you are right.或许你是对的。10.during the week,ill wear smart clothes.在工作日期间,我将穿干练的衣服。during介词,意为“在期间”。如:we go swimming every day during the summer.整个夏天我们每天都去游泳。【辨析】during,for与in在说到某事是在某一段时间之内发生的用during;说到某事持续多久则用for;说到某事具体发生的时间用in。如:we visited many places of interest during the summer holiday.暑假期间我们参观了很多名胜古迹。ive been here for two weeks.我在这儿待了两周。they usually leave school in july.他们通常七月份毕业。例1 therea new park in this city in 2 years.a.is having b.will have