八年級下冊英語知識點
八年級下冊英語知識點
人學習英語知識 ,必須以知識點為單位、逐個知識點地學習。下面是小編為大家精心整理的八年級下冊英語知識點，僅供參考。
八年級下冊英語知識點(一)
重點語法
【反身代詞】英語中共有八個反身代詞，在使用時應注意和它所指的相應的對象在人稱、性別、數(shù)上保持一致。
數(shù) 人稱
第一人稱
第二人稱
第三人稱
單數(shù)
myself
yourself
himself herself itself
復數(shù)
ourselves
yourselves
themselves
【用法】
1. 可用作賓語，指的是賓語和主語表示同一個或同一些的人或事物。
如：Maria bought herself a scarf. We must look after ourselves very well.
2. 可用作表語，指的是表語和主語表示同一個或同一些人或事物。 如： She isn’t quite herself today.
3. 可用作主語或賓語的同位語，常用來加強語氣。
如：She herself will fly to London tomorrow. I met the writer himself last week.
4. 用在某些固定短語當中。
look after oneself / take care of oneself 照顧自己 teach oneself sth./ learn sth. by oneself自學
enjoy oneself 玩得高興，過得愉快
help oneself to sth 請自用……(隨便吃/喝些……).
hurt oneself摔傷自己
say to oneself自言自語
leave sb. by oneself把某人單獨留下
buy oneself sth.給自己買……東西
introduce oneself 介紹……自己
【提醒】
1. 反身代詞不能單獨做主語，但可以做主語的同位語，起強調(diào)作用。 如：我自己能完成作業(yè)。
(誤)Myself can finish my homework. (正) I myself can finish my homework. / I can finish my homework myself.
2. 反身代詞表示“某人自己”不能表示“某人的東西”，因為它沒有所有格的形式。表達“某人自己的(東西)”時，須要用one’s own.
如：我用我自己的蠟筆畫畫。(誤)I’m drawing with myself crayons. (正) I’m drawing with my own crayons.
八年級下冊英語知識點(二)
基本知識點
1. sick 生病的，有病的;可在句中作表語Mary could not come because she is sick.
也可作定語a sick child
【區(qū)別ill】ill與sick同義;但是只在句中做表語，不做定語。Mary could not come because she is ill.
2. cheer (sb.) up(讓某人)變得高興;振奮起來The good news cheered up everyone in our class.
3. give out分發(fā);散發(fā)，相當于hand out，The teacher is giving out/ handing out the test papers.
give sth. out to sb. 意為 把某物分發(fā)給某人 。
4. volunteer 【名詞】志愿者 【動詞】義務做，自愿做(某事)volunteer to do sth. 自愿做某事 ，
The girls could volunteer in an after-school study program.
5. used to do sth.過去/曾經(jīng)(常)做某事，表示過去的習慣、動作或狀態(tài)，并強調(diào)現(xiàn)在已經(jīng)不再存在或發(fā)生。
There used to be a cinema here. 這里曾有一個照相機。
They told me stories about the past and how things used to be. 他們告訴我關于這里過去的故事。
6. alone 【形容詞】獨自一人的，無感情色彩：The musician enjoyed living alone and writing songs himself.
lonely (感到)孤獨寂寞的，帶有很強的感情色彩，可做表語或定語。The lonely boy is not lonely now.
7. care for sb./sth.照顧;照料……
care 【名詞】小心，關心take care of=look after →【動詞】care about sb./sth.關心，在意某人/事
→【形容詞】careful 仔細的 / careless 粗心的 →【副詞】carefully 仔細地
8. such “這樣的，這種，如此”，用于修飾名詞
such+ a/ an+形容詞+單數(shù)名詞：such a good day 多么美好的一天 /such an exciting match 多么 精彩的比賽
such+形容詞+復數(shù)名詞/不可數(shù)名詞：such important decisions 多么重要的建議 such delicious food 多么美味的食物
如果名詞前被many, much, few, little修飾時，只能用so，而不用such：so many sick children/ so little time
9. try out for…參加…選拔，爭取成為…Thirty football players tried out for the Best Player of the year.
try out試用，試驗
10. journey 【名詞】(尤指長途)旅行，行程;trip【名詞】多指短途旅行;
travel【名詞、動詞】travel around the world →【名詞】traveler旅行者
11.【復習】be busy with sth. 忙于(做)什么事情 be busy doing sth. 忙于(做)什么事情
12.【復習】try doing sth. 試著去做某事 try to do sth. 盡力去做某事 try one’s best (to do sth.) 盡某人最大的努力去做某事
13.【復習】be worried about sb./ sth. = worry about sb./ sth. 擔心某人、某事
14. raise money集資，籌錢;raise money for…為……籌錢
raise【動詞】舉起;提高;募集
15. keep【動詞】keep+名詞，保留(某物);keep+形容詞，保持
16.【形容詞】broken破損的，出毛病的;blind瞎的，失明的;deaf聾的;disabled有殘疾的，喪失能力的;在句中做定語和表語。
make it possible (for sb.) to do sth.使(某人)做某事成為可能，
You helped to make it possible for me to have Lucky.
make it +形容詞(+for sb.) to do sth. 使(某人)做某事成為…;
think/find it +形容詞to do sth.
18. make a difference to…對……有影響;對……有作用，difference前可以用no, any, some, much等修飾，如
The rain made no difference to the game.
Hard-working makes much difference to study.
19. difficulty【可數(shù)/不可數(shù)】表示抽象意義的“困難”時為不可數(shù);表示具體的“難題、難事”時為可數(shù);
have difficulty (in) doing sth.= have trouble (in) doing sth. 做某事有困難
20. train【動詞】訓練，trained為過去分詞，可做定語，意為“受過訓練的”a trained dog
21. be excited about sth. 對某事感到興奮 ，Everyone is excited about the good news.
【復習】excited意為 興奮的，修飾人;exciting意為 令人興奮/激動的，修飾物。
22. order【名詞】命令，指示;順序，次序【動詞】訂購;點(菜)follow the order。
23. change【動詞】變化，改變It’s hard for a person to change his life(style). 【名詞】變化;零錢
change A for B用A換成B：When you travel in China, remember to change US dollars for RMB.
repair 【動詞】修理，修補; fix【動詞】安裝;使固定 【fix up修理=repair】
八年級下冊英語知識點(三)
基礎知識
1. What’ s the matter? 怎么啦?出什么事情了?
【解析】matter/ ' mætə(r)) /n.問題;事情
What’ s the matter with you?= What’s the trouble with you? = What’ s wrong with you? 你怎么了?
【注】： matter 和trouble 為名詞， 其前可加the 或形容詞性物主代詞，wrong 是adj. 不能加the
【用法】用于詢問某人有什么病或某人遇到什么麻煩、問題其后跟詢問對象時， 與介詞with連用。即：
What’s the matter with sb.? = What’s your trouble? = What’s up? = What happens to sb.?
— What’s the matter with you ? — I have a bad cold.
2. I had a cold.我感冒了。 have a cold=catch a cold=have the flu感冒
have a fever 發(fā)燒 have a cough咳嗽 have a stomachache胃疼，肚子疼 have a toothache牙疼 have a headache頭疼
3. 身體部位+ache(疼痛)構成新的復合詞
stomach+ache=stomachache head+ache=headache tooth+ache=toothache back+ache=backache后背痛
4. much too+ 形容詞，意為 太...... ，too much+名詞，意為 很多，大量 。
5. enough【形容、副詞】足夠的/地，enough放在名前后，形副后。good enough足夠好，enough money=much money
6. lie down躺下， lie 躺，躺著，過去式lay;lie說謊，過去式lied
7. maybe “或許”，常用于句首，表示可能性，后加句子。Maybe you are right.
may be，是情態(tài)動詞+be的結構，意為“可能，也許”，后加名詞、代詞或形容詞。He may be angry.
sound like+名詞代詞和從句：It sounds like you don’t know the truth.
It sounds like a good idea. sound+形容詞，“聽起來，好像”，The music sounds nice.
9. need 需要，實義動詞need+名詞，需要某物;
need to do sth.需要做某事，主語通常是人，表示人主動的動作：You need to listen carefully during class.
need doing sth.主語通常是物，表示被動的動作：Your dirty clothes need washing.
10. get off (the bus) 下(公交車) get on 上車
11. agree 同意，贊同;
agree with sth. 同意某事 如：I agree with that idea.
agree to sb. 同意某人的意見 如：I agree to LiLei.
12. trouble問題，麻煩 ;be in trouble遇到麻煩，make trouble 制造麻煩 ，have trouble (in) doing sth. =have difficulties (in) doing sth做......有麻煩。
13. right away=right now=at once，意為 馬上 。
14. advice [不可數(shù)名詞]勸告，建議，向…征求意見， give sb. advice on sth.就某事給某人建議; advise [動詞] advise sb. to do sth. 建議某人做某事
advise sb. doing sth.
【復習】exercise 練習、鍛煉
當exercise意為“練習”時，為可數(shù)名詞 即可加s
當exercise意為“鍛煉”時，為不可數(shù)名詞 即不加s
16. hurt 及物動詞，使……疼痛，……受傷，He hurt his leg while exercising.
不及物動詞，……(部位)疼。 His leg hurt badly.
clean 【動詞】打掃，clean the classroom打掃教室，【形容詞】 干凈的 ，cleaner意為 清潔工 。
18. hit (用手或器具)打;擊打 The boy hit the dog with a stone.
hit sb. on the head/ nose/ back打某人的頭、鼻子、后背，on用在所打較硬的部位;
hit sb. in the face/ eye/ stomach 打某人的臉、眼睛、肚子，in用在所打較軟的部位。
be used to sth./ doing sth.習慣于、適應了……、做某事，強調(diào)狀態(tài);His grandpa was used to country life.
Mary is not used to getting up early in the morning.
get/ become used to sth./ doing sth. “變得習慣，逐漸適應……”強調(diào)過程、動作：
It’s difficult for one to get used to another country’s habit.
20. 【復習】free [形容詞]空閑的free time;免費的the drink is for free;自由的I want to become a free bird.
free【動詞】使……解脫，得到自由：He could not free his arm.
run out用完，用盡 When his water run out, he knew that he would have to do something to save his own life.
物sth. run out. 某物用盡了。
人sb. run out of sth. 人用盡了某物。He run out of all his money last night.
22. risk (sb.) to do sth. 冒險去做某事 take a risk=take risks 冒險
23. the importance of (doing) sth.(做)某事的重要性
We students should know the importance of (learning) English.
importance n. 重要(性)， important adj.重要的，unimportant adj.不重要的
decision 【名詞】決定;抉擇; make a decision 做決定 ;
make a decision to do sth.= decide to do sth. 。
25. be in the control of …掌管，管理 The headmaster is in the control of this new school.
be out of control無法控制，無法管理 be under control被控制住，在控制之中
26. 【復習】mind意為 介意 ，mind doing sth. 介意做某事 ,
Would you mind my opening the window?
27. give up (doing) sth. 放棄(做)某事，give up (playing) computer games;
give up后可接名詞、代詞和動詞ing形式，也可不接，如: Never give up easily.
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