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八年级英语下册第一单元知识要点

发布时间:2013-12-11 12:33:16  

八年级下册第一单元知识要点

Unit 1语法

本单元主要学习将来时态的表达

1.将来时态:表示将要在将来的时间里发生的动作。主要的时间状语有in the future , tomorrow,

the day after tomorrow, next day(month, year), in +段时间表示的将来时间,如:in ten years, in two weeks等.

将来时的肯定构成:主语+will+V原+其他 I will go to Beijing tomorrow.

将来时的否定构成:主语+will+not (won’t )+V原+其他 I won’t go to Beijing tomorrow.

将来时的疑问构成:Will +主语+V原+其他?Will you go to Beijing tomorrow?

Yes, I will. No, I won’t.

在英语中也可以用另外一种句子表示将来时

肯定构成:主语+be going to + V原+其他. I am going to Beijing tomorrow.

否定构成:主语+be going to + V原+其他. I am not going to Beijing tomorrow.

疑问构成:Be+主语+ going to + V原+其他?Are you going to Beijing?

Yes, I am No, I am not.

两者的区别主要是:1)be going to 表示有某种暗示

Eg:It is going to rain.(通过看天气或云而判断出来的。)

2)be going to 有计划性,有某种打算 I am going to be a teacher.

除了以上之外,will 和 be going to 可以通用。

2.There be 句型表示“有”,have 也表示“有”, 那么“将要有”的表达如下:

① There is going to be ②there will be

③主语(必须是人做主语)+will have ④主语(必须是人做主语)+ be going to have

There is going to be a sports meeting next week.

= There will be a sports meeting next week.

I will have a new toy car. = I am going to have a toy car.

3.不定代词:表示没有具体指代的人或物。

表示物的不定代词 everything, something, anything, nothing

表示人的不定代词everybody(everyone),somebody(some one),

anybody(any one),nobody(no one)

注意:所有的不定代词没有复数形式,只有单数形式。

自由的 adj I will be free tomorrow.

免费的 adj Everything is free, you needn’t take money.

n. freedom 自由

6.pollution污染n.(不可数名词)There is much pollution in the city.

7. agree : v 同意 agree with sb. 同意某人 I agree with you.

Agree to do sth同意做某事

agree —disagree= don’t agree

在Section A 中必须掌握的短语

there will be 将要有②in people’s homes 在人们的家里

③study at home on computers 在家通过电脑学习

④be free 免费 ⑤live to be… 活到…⑥in 100 years 一百年以后⑦less pollution 更少的污染 ⑧big and crowded 大而拥挤⑨more tall buildings 更多的高大建筑物

8.alone, lonely

alone, 独自一人 强调一个人 lonely, 孤独的;寂寞的 强调内心的孤独,寂寞 I live alone, but I don’t feel lonely. v. 饲养 I like keeping pets.

v. 使某人… keep (sb.) doing sth I keep him waiting.

保持 keep sth + adj Please keep the room clean. Keep quiet.

10. can / be able to 区别

共同点:含义相同 能够

不同点: can 是情态动词,只有一般现在时态和过去时态

be able to 可用于各种时态,be动词随主语的不同要做相应的变化。

He can play soccer.= He is able to play soccer.

11. need: 双重身份的动词 1)情态动词+V原 I need a new bike.

2) 行为动词 need to do sth I need to buy a new bike.

13.One of + 名词复数+动词单数+其他 ….的之一

He is one of the best students. 他是最好的学生之一。

14.be used by 被用于…. The bike is used by riding.

15.see sb doing sth 看见某人正在做某事 I see him playing soccer.

see sb do sth 看见某人做了某事 I saw him play soccer.

在Section B 中必须掌握的短语

①fell in love with 爱上②as a reporter 作为一个记者③living alone 独自一人居住

④on the weekend 在周末⑤one day 一天⑥World Cup 世界杯⑦for fun 为了娱乐

⑧from now 从现在⑨work for sb 为某人工作⑩job interview 工作面试⑾fly to 飞向…

⑿come true 实现

16. help: help sb do sth =help sb with doing sth =help sb with sth

He helps me clean the room.=He helps me with cleaning the room.

17. such\ so 表示“如此”时的区别

such a\an + adj. + 单数名词 He is such a clever boy.

so +adj.+a\an +单数名词 = He is so clever a boy.

18.try try to do sth 努力做某事 I try to listen him carefully.

try doing 尝试做某事

try one’s best to do sth 尽某人最大努力做某事

I try my best to help her. 我尽我最大努力帮助她。

19. the same …..as 同… 一样 He has the same pen as me.

(注意same前面的the 永远不可以丢掉。)

20. make v make sb do sth 使某人做某事 Playing games make me be happy.

make sb +adj 使某人…. = Playing games make me happy.

21.It is +adj for sb. to do sth. 对于某人来说做某事是 adj.

It is important for us to be healthy.

It is easy for a child to wake up.

23. over and over again 再三地 They do simple jobs over and over again.

24.fall in love with … 爱上……

例:When I met Mr. Xu for the first time, I fell in love with him at once. 当我第一次见到许老师,我立刻爱上他。

25. keep/ feed a pet pig 养一头宠物猪

a piece of paper 一张纸 two pieces of paper 两张纸

26,Are you kidding? 你在骗我吗?

27, Be quick, or you will be late = If you don't be quick, you will be late

在时间/条件状语从句中,如果从句用一般现在时,主句用将来时

1) If you ask him,he will help you.如果你请他帮忙,他会帮你的。

2) If you fail in the exam,you will let him down.如果你考试不及格,你会让他失望的 本单元的不规则动词:

take --took think--thought come--came

Many,much ,little, a little ,few, a few, more ,fewer ,less的区别

many,much都意为"许多", many + 可数名词,much + 不可数名词。

How many people are there at the meeting?

How much time has we left?

a little,后跟不可数名词,意思是一些

There is a little water in the bottle,you can have it. (瓶子中还有一些水,你可以喝)

a few,后跟可数名词复数,意思是一些

I have a few oranges.(我有一些橘子)

little,后跟不可数名词,意思是几乎没有,很少

She is very poor and she has little money.(她很穷,几乎没什么钱)

few,后跟可数名词复数,意思是几乎没有,很少

There are few trees here.(这里几乎没有树)

more 是说更多,有时候也用more than 搭配,一般用语可数名词

fewer 更少,也是可数名词

less,更少,有时候less than 搭配,用语不可数名词

little —less —least few—fewer—fewest

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