知识点是人的认知单位。下面是小编为大家精心整理的8年级下册英语知识点，仅供参考。

8年级下册英语知识点(一)

情态动词should的用法

should是情态动词，它的基本用法是必须和其他动词一起构成谓语。情态动词没有人称和数的变化，意为"应该......"。

should(应当，应该)用于所有人称，表示劝告或建议。

eg. You should wait a little more.

你应该再多等一会儿。

--- I have a very bad cold.我感冒很厉害。

--- You should lie down and have a rest.你应该躺下，多喝水。

2maybe与may be

1.maybe是副词，译为“也许、可能”，相当于“perhaps”。如：

Maybe he can answer the question. 也许他能回答那个问题。

He maybe is from the USA, too. 他可能也来自美国。

2.may be中的may为情态动词，译为“可能是......”。如：

He may be from the USA, too. 他可能也来自美国。

She may be our English teacher. 她可能是我们的英语老师

3too many,too much与much too

1.too many意为“太多”，用于修饰可数名词的复数。如：

There are too many students in our class. 我们班上有太多的学生。

2.too much意为“太多”，用于修饰不可数名词。如：

We have too much work to do. 我们有太多的工作要做。

3.much too表示“太”，用来修饰形容词或副词。如：

The box is much too heavy, so I can't carry it.

箱子太重了，所以我搬不动它。

4 few、a few、little、a little的区别和联系：

1.few / a few用来修饰可数名词，few表示否定意义，没有，几乎没有;a few表示有肯定意思，有几个。 例如：

He has few friends here, he feels lonely. 他这里没朋友，他感觉寂寞。

There are a few eggs in the basket.篮子里有几个鸡蛋。

2.little / a little用来修饰不可数名词，little表示否定意思，没有，几乎没有。

a little 表示肯定意思，有一点儿。 例如：

There is little ink in my bottle, can you give me a little ink?

我的瓶子里没有墨水了，你能给我点儿墨水吗?

5 not…until 直到 …(否定句) 才，动词为短暂性或瞬间性动词

She didn’t leave until we came.

He went shopping after he got up.

=He didn’t go shopping until /before he got up.

……until/till 直到··· (肯定句)动词为延续性动词

We stayed here till/until 12 o’clock.

8年级下册英语知识点(二)

重点句子

1.What’s the matter ? What’s the mater with you ? 你怎么啦?

=What’s the trouble with you?=What’s wrong with you?

I have a cold / have a sore back / have a stomachache

2.That’s too bad. You should / shouldn’t … 那太糟糕了. 你应该/不该…

You should lie down and rest / drink hot tea with honey / see a dentist / see a doctor .

He shouldn’t eat anything = He should eat nothing. 他不应当吃任何东西.

3.I’m not felling well . 这里well表示身体状况，不能用good代替

I don’t feel well= I’m not feeling well 我感觉不舒服.

4.When did it start ? About two days ago . 什么时候开始的?大约两天前

5.I hope you fell better soon . 我希望你很快好起来

这里better是well的比较级

6.Traditional Chinese doctors believe we need a balance of yin and yang to be healthy. 传统中医认为我们需要阴阳调和以保持身体健康。

这里 to be healthy是动词不定式短语，作目的状语

7.You should eat hot yang foods, like beef. 你应该吃一些像牛肉之类的阳性食物。

8.Eating Dangshen and Huangqi herbs is also good for this.

吃党参和黄芪等草本植物也对这有好处。

9.People who are too stressed out and angry may have too much yang.

太紧张易怒的人或许吃了太多的阳性食物。too much后跟不可数名词，而too many后跟可数名词复数

10.It’s easy to have a healthy lifestyle ,and it’s important to eat a balanced diet . 有一个健康的生活方式很容易，饮食平衡是很重要的。

→ It’s easy to do sth . 做某事容易 / It’s important to do sth . 做某事重要

11.You should rest for a few nights. 你应该休息几个晚上

12.I study late every night, sometimes until 2 am, but I don’t think I’m improving.

我每天晚上学到很晚，有时到凌晨2点钟，但我认为我没有提高。

13believe in 信任某人，强调品质，believe sb.相信某人的话

I believe him, but I can’t believe in him.

他的话是真的，但是我不信任他这个人。

14 .I have a toothache . I need to see a dentist .

→ need意思为 “需要” ，作实义动词时，后跟动词不定式，否定式为don’t /doesn’t / didn’t need (to do sth.) ;作情态动词时，只能用于否定句或疑问句中，否定式为needn’t(do sth.) ，除有过去式外，没有其它的形态变化

8年级下册英语知识点(三)

重点短语归纳

1. foot---feet 脚 <复> tooth---teeth 牙齿 <复>

2. have a cold 感冒

3. have a stomachache 胃疼

4. have a sore back背疼

5. have a sore throat喉咙疼

6. have a fever发烧

7. lie down and (have a)rest 躺下休息 have a rest 休息

8. hot tea with honey 加蜜的热茶

9. see a dentist 看牙医 see a doctor 看医生

10.drink lots of water多喝水

11.lots of ,a lot of, a lot

a lot of=lots of，可以修饰可数名词复数和不可数名词，一般用在肯定句中。：

There are lots of ( a lot of) books in our library.

There is a lot of water on the ground

a lot,是一个副词词组，跟动词连用;表示十分，很等意思; Thanks a lot.

12. have a toothache牙疼

13. That’s a good idea好主意

14. go to bed 去睡觉 go to bed early 早上床睡觉

15. feel well感到好 feel ill 感到不舒服

I don’t feel well= I’m not feeling well

我感觉不舒服.

16. start doing/ to do sth开始做某事

TO DO 是一件事情完成了，开始做另外一件事情

DOING是原来的那件事情做到一半，现在又开始做了，是同一件事情。

17. two days ago两天前

18. get some rest 多休息, 休息一会儿

19. I think so我认为是这样

20. be thirsty口渴

21. be hungry 饥饿

22. be stressed out紧张

23. listen to music听音乐

24. healthy lifestyle健康的生活方式

25. traditional Chinese doctors传统中医

26. need to do sth 需要做某事

I have a toothache. I need to see a dentist. 我牙痛, 我需要去看牙医.

We need to keep our classroom clean. 我们需要保持教室的干净.

27. a balance of yin and yang阴阳平衡

28. for example例如

29. too much yin太多的阴, 阴气太盛

too much + 不可数名词 太多的…

much too +形/副 实在太… 极其，非常

too many + 可数名词复数 太多的…

30.be good for sth./ doing sth. 对什么有益 ，对什么有好处

be bad for sth./ doing sth. 对什么有害

be good to 对…好

be good at =do well in 在……方面好，擅长

be good(bad) for、be good at的相关用法

1.be good for 对......有益

Doing morning exercises is good for your health.

做早操对你们的建康有益。

2.be good at 擅长于......

Li Ping is good at basketball. 李平擅长于篮球。

= Li Ping is good at playing basketball. 李平擅长于打篮球。

be good at = do well in 如：

I'm good at math. = I do well in math. 我擅长于数学。

3.be good to 对......好

Parents are always good to their children.父母亲总是对他们的孩子好。

31.get good grades 取得好成绩

32.angry 用法 be angry with sb生某人的气

I was angry with him for keeping me waiting. 我对他很生气，因为他让我等了好久。

be angry at/ about sth 就某事生气

33.Chinese medicine 中药

34.be popular in + some place 在某地很流行

Chinese medicine is now popular in many western countries. 现在中药在许多西方国家受欢迎。

35.in western countries在西方国家

36.It’s easy to do sth做某事是容易的。 It’s important to do sth . 做某事很重要。

37.balanced diet平衡饮食

38.get tired 感到疲倦 be/get tired

39.go out at night在晚上出去

When you are tired, you shouldn’t go out at night. 疲倦时，晚上你不该外出

40.stay healthy 保持健康 =keep healthy=keep in good health

41.at the moment此时，此刻= now

I’m not feeling very well at the moment

42.enjoy sth. =like sth. (名词)喜欢某物,

enjoy doing sth.喜欢做某事=like dong sth

enjoy oneself (myself, yourself,herself, himself, themselves, ourselves, itself

反身代词) 玩得高兴，过得愉快=have a good time = have a wonderful time =have fun

43. conversation practice会话练习

44. host family 寄宿家庭

45. have a lot of headaches经常疼痛

I’m tired and I have a lot of headaches. 我很疲劳，而且经常头痛。

46. a few + 可数名词复数 少许…

a little + 不可数名词/形/副 一点…

47.He shouldn’t eat anything

=He should eat nothing. 他不应当吃任何东西.

48.give sb some advice给某人建议give advice 提出建议

advice 是不可数名词

a piece of advice 一则建议 take one’s advice 采纳或听从某人的建议

He gave me some good advice.他向我提了一些很好的意见。

49.sleep 8 hours a night每晚睡眠八小时

50.take medicine 吃药 服药

I have to take medicine three times a day for my cold.因为感冒，我不得不一天吃三次药。