八年级下册英语第一单元.ppt

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1、Revision of Unit One,Will people have robots?,Will people have robots?,一般将来时表示将要发生的动作或情况:,I will/shall arrive tomorrow.我明天到.Will you be busy today?你今晚忙吗?,将来我要成为一名工程师。,他明天要回学校。,一般将来时,一般将来时由助动词shall或will加动词原形构成Shall用于第一人称,will用于第二、三人称(现在很多说英语的国家,在陈述句中,即使第一人称一般也用will),I will be an engineer in the futur

2、e.,He will come back to school tomorrow.,I wont be an engineer in the future.Will you be an engineer in the future?,He wont come back to school tomorrow.Will he come back to school tomorrow.,P3 三、四,Will people have robots?,表示将要发生的动作或情况,除了一般将来时外,还有一些其他结构和时态:,be going+不定式(表示打算、准备做的事或即将发生和肯定要发生的事):,How

3、 are you going to spend your holidays?假期你准备怎样过?I think it is going to snow.我看要下雪了.,对于事先经过考虑的打算、计划、意图,应使用be going to,而不是will 结构。What are you going to do next Sunday?下星期天你打算干什么？Im going to go fishing.我打算去钓鱼。表示有某种迹象，一定会发生的事情用be going to.Look at the black clouds.It_ rain.表示不受人的主观意愿影响的单纯将来，一般只能用will结构。例如

4、：Tomorrow will be April Fools Day.明天是愚人节。I _(be)20 years old in two months.,is going to,will be,在表示即将发生某事时，两者区别意义不大，多可互换。例如：What is going to happen?就要发生什么事？What will happen?将要发生什么事？一般说来，be going to 表示较近的将来，而will 则表示较远的将来。试比较：It is going to snow tonight.今晚要下雪。There will be a strong wind in a few days

5、.几天后将有一场大风。P1 一、二P5 二、四,Will people have robots?,相关知识:1.表示“存在”的句型 There be+主语+其他成分 eg:There is a book on the table.2.表示“将来存在”的句型 There will be+主语+其他成分 eg:There will be more people in this city.3.表示“将来存在”的疑问句型,否定句型和简略回答 Will there be+主语+其他成分?Yes,there will./No,there wont.There will not+主语+其他成分.,e.g.十

6、年之后会有更多的电影明星.,There will be more movie stars.,There wont be more movie stars.Will there be more movie stars?,There be 结构的就近原则,(Be动词的单复数由其后名词的单复数决定),桌上有一个盒子和三本书。,There is a box and there books on the desk.,桌上有三本书和一个盒子。,There are there books and a box on the desk.,Will people have robots?,词语对对碰,in vs

7、after,相同点:这两个词后都可接时间,表示“在 以后”不同点:“in+一段时间”表示以现在为起点的将来一段时间以后,常与将来时连用.“after+一段时间”表示以过去某一时间点开始的一段时间以后,常于一般过去时连用.当after后接某一时间点时,仍可用于将来时.,Itll be finished _ five minutes.He will go to the park _supper.Ill be free _ nine oclock.Its two oclock.Ill come _ an hour.He came here again_five days.,in,after,afte

8、r,in,after,P5 三,Will people have robots?,词语对对碰,can vs be able to,相同点:两者都表示能力不同点:can只有现在式和过去式.be able to可用于现在时、过去时和将来时,但它没有进行时.表示经过努力而成功的某一次动作,只能用be able to.,试做以下试题:He _ drive a car.He _climb over the mountain before.,can,was able to,P6 四,Will people have robots?,词语对对碰,fewer vs less,相同点:这两个词后都是比较级,均可

9、表示“较少的”不同点:fewer是few的比较级,只能修饰可数名词的复数.less是little的比较级,只能修饰不可数名词的复数.,试做以下试题:I earn _ money than my sister.There are _ cars parked outside than yesterday.We have _ students this year than last year.You ought to smoke _ cigarettes and drink _ beer.,fewer,fewer,fewer,less,less,P3 二P5 三,V+ing 做主语Predictin

10、g the future can be difficult.,_(do)homework is our duty._(do)you homework first.,Its+adj.+for sb+to do sth.Its good for us to eat vegetables.,Its impossible for him _(finish)the work.,二者可相互转换,Doing,Do,to finish,hate.keep alone.lonelydress dress sb 给某人穿衣服 dress up 乔装打扮 dress oneself 自己穿衣服,习题回顾：,I _

11、you when Bill _ here tomorrow.A will call;comes B call;will come C call;comes D will call;will comeMy mother will buy some fruit and vegetables this afternoon.(否定句)My mother_ buy_ fruit _ vegetables this afternoon.Mr.Li has a robot in his home.(改为将来时态)My father will take subway to go to work.(用often改写句子）Sally _ swim when she was five.,A,主将从现,wont,any,or,Mr.Li will have a robot in his home.,could,