初中八年级上册知识点(八年级上册所有必考知识点都在这里了学习一年)
前面老师和大家分享了仁爱版八年级上册Unit1和Unit2的所有必考知识点,今天该Unit3和Unit4了,适合收藏学习一整年哦!
Unit3 Our Hobbies
Topi1 What's your hobby?
【重点短语】
such as 例如
used to do sth. 过去常常做某事
take a bath 洗澡
be interested in 对……感兴趣
go dancing 去跳舞
go boating 去划船
play volleyball 打排球
collecting stamps 集邮
collecting coins 收藏硬币
listening to pop music 听流行音乐
listening to classical music 听古典音乐
listening to symphony 听交响乐
walking in the countryside 在乡间散步
【重点句型】
1. Wow! So many stamps! 哇,那么多的邮票!
2. We can learn a lot about people, places, history, and special times from stamps. 通过这些邮票我们可以学到许多关于人文、地理、历史和特殊时代的知识。
3. Would you like to collect any of these things? 你想集下面这些东西吗?
4. What things do you love collecting? 你喜欢集什么东西?
5. I am interested in playing sports. 我对运动感兴趣。
6. What do you often do in your spare time? 在你的业余时间里面你都做些什么啊?
7. I often go fishing. 我经常去钓鱼。
8. And I do a lot of reading. 我通常都是阅读一些书籍。
9. I' m a movie fan. 我是一个电影迷。
10.I also rent VCDs and watch them at home. 我也租一些VCD在家看。
11. Why not go out and do some outdoor activities? 为什么不走出去做一些户外运动呢?
12. Maybe I need a change. 或许我需要改变。
13. My interests are changing all the time. 我的兴趣爱好总是在不断地改变。
14. And I wasn' t interested in sports at all. 我对运动一点兴趣都没有。
15. But now, my hobbies are sports, like soccer and swimming. 但是现在我的爱好是体育,比如足球和游泳。
16. I never miss any important soccer games. 我从未错过任何一场重要的足球比赛。
17. I used to know little about paintings. 我过去不太懂绘画。
18. I enjoy listening to rock music. 我喜欢听摇滚音乐。
19.Did you use to go swimming during summer vacations? 在暑假里,你过去经常去游泳么?
20. I used to do that in the pond in front of my house. 我过去常在我家门前的池塘里游泳。
21. Nobody. I taught myself. 没有任何人,我自学的。
22. When they are free, people usually do what they like. 当人们空闲的时候,他们总是做一些自己喜欢的事情。
23. They also paint pictures or collect things such as coins, dolls or stamps. 他们也绘画或者收集一些东西,例如硬币、娃娃或邮票。
24. When people become old, hobbies can keep them healthy. When people are sick, hobbies can help them get well sooner.
当人们变老的时候,爱好可以帮助他们保持健康。当人们身体虚弱的时候,爱好还可以帮助他们尽快地康复。
25. I call him Pink pig. The color of his skin is light pink. 我叫他粉色,因为他的皮肤是淡粉色的。
26. Pink likes to have a bath. Pink喜欢洗澡。
27. How do you take care of them? 你怎样照顾它们?
【重点语法】
1. I used to listen to rock music but now I collect telephone cards and paintings. 我过去常听摇滚乐,可现在我集电话卡和画。
used to do sth. 这一结构表示过去的习惯(过去经常反复发生的动作)或状态(暗含的意思是现在已不复存在),用于所有人称。
used to的否定形式为:used not to do或didn’t use to do。疑问句为Used you to... ? 或 Did you use to...? 如:
1) I used to go to school on foot.
我过去步行上学。(暗含的意思是:我现在不再步行上学了。)
2) Mary used to sleep late.
玛莉过去总是很晚才睡觉。(暗含的意思是:玛莉现在睡觉不再那么晚了。)
3) He used not to like Peking opera, but now he’s very fond of it. 他过去不喜欢京剧,但现在非常喜欢。
现在大多数人在口语中或不太正式的书面语中对否定句和疑问句常使用与do 连用的形式。例如:
1) I didn’t use to like skating, but now I like it very much. 我过去不喜欢滑冰,但现在很喜欢。
2) Did you use to go there? 你以往常去哪儿?
3) There used to be a theatre here, didn’t there? 以前这里有一座剧院,是不是?
另外,注意be used to doing sth.、used to do sth.和be used to do sth.的区别:
be used to doing sth “习惯于……”如:
1) He is used to working hard. 他习惯于努力地工作。
2) I’m used to doing jogging in the morning now. 我习惯于早上慢跑。
3) He used to bring me roses when he came to see me. 过去他来看我时,常带玫瑰花。
be used to do sth.“某物被用来做某事”。如:
1) Wood is used to make paper. 木材被用来生产纸张。
2) Computers can be used to do a lot of work now. 如今电脑可用来做许多事。
2. Collecting stamps must be great fun! 集邮肯定很有趣!
must在这里是情态动词,表示推测,可以翻译为“一定,肯定”。如:
1) Your brother must be in the school. I saw him just now.
你的哥哥想必在学校。我刚才看见他了。
2) Your friend must have left for Nanjing yesterday.
你的朋友昨天一定已经离开去南京了。
3) She thought that her present must be in the box. 她以为礼物一定是在盒子里。
情态动词must的三种否定形式:
must表示“必须”时,其否定回答为don’t have to/needn't/don't need to,意思为“不需要”。如:
---Must I pay back the money right now? 我必须现在偿还这笔钱吗?
---No, you don’t have to. 不,你不需要现在还。
must表示“推测”时,其否定形式为can’t,意思为“不可能”。如:
1) I’ve seen what she is talking about, so she can’t be telling lies.
我目睹了她所说的事情,因此,她不可能在说谎。
2) Yesterday I received a letter from him, so he can’t be here. 昨天我收到了他的信,所以说他不可能在这儿。
而mustn't的意思为“绝对不可,不许,禁止”。如:
1) You mustn't smoke in the hospital.你绝对不可以在医院里吸烟。
2)You mustn't cross the road when the traffic lights are red.
交通灯是红色时,你千万不能过马路。
3. He doesn’t mind whether they’re good or not. 他并不介意它们是否是好的。
此句为以whether引导的宾语从句。whether...or not“不论是否……”。如:
You have to get up early everyday whether it rains or not.
你必须天天早点起床,不论是否下雨。
if与whether的区别:
二者在引导宾语从句时一般可换用。如:
1) I want to know if / whether it is going to rain tomorrow. 我想知道明天是否下雨。
2) He asked me if / whether Li Ping was at home. 他问我李平是否在家。
3) He didn’t understand if / whether the stranger told a lie. 他不明白那个陌生人是否说的是假话。
但下列几种情况不能换用。
1) whether 后可紧接or not,而if一般不能。
Let me know whether or not you can come. 你能来还是不能来,请告诉我一声。
2) 不定式前用whether,不用if。如:
I haven’t decided whether to go to the cinema or to stay at home. 我还没有决定是看电影还是留在家里。
3) 介词后可用whether,不用if。如:
I haven’t settled the question of whether I’ll go back home. 我是否回家还没有定。
Topic2 What sweet music?
【重点短语】
continue doing sth. 继续做某事
be born 出生
set up 建立
classical music 古典音乐
folk songs 民歌
stage name 艺名
everyday life 日常生活
be famous for 因……而著名
look for 寻找
【重点句型】
1. And it sounds great! 听起来好极了。
2. What kind of musical instrument can you play? 你会弹什么种类的乐器?
3. We have guitar, violin, piano and drum lessons for just ¥240 each. 我们有吉他课、小提琴课、钢琴课、和打鼓课,每个课程仅需要240元。
4. What do you do in your free time? 你在闲暇之际干些什么?
5. Classical music is serious music. 古典音乐是一种很严肃的音乐。
6. Pop music often comes and goes easily. 流行音乐来得快去得也快。
7. They are very popular among young people. 它们在年轻人当中很流行。
8. Guo Lanying, Song Zuying and Tenger are famous for their folk songs. 郭兰英,宋祖英和腾格尔以(唱)民歌而出名。
9. It is one of the most famous rock bands in the world. 它是世界上最著名的摇滚乐队之一。
10. In the fall of 1976, a 14-year-old high school student, Larry Mullen, looked for some musicians. 在1976年的秋天,一个14岁的中学生,Larry Mullen寻找一些音乐家。
11. He wanted to form a band. 他想组建一个乐队。
12. He found 3 boys and they set up a band. 他找到了3个男孩,他们组成了一个乐队。
13. The four members are still close friends after many years. 多年后,4位成员仍然是好朋友。
14. They continue making music. 他们继续创作音乐。
15. And people all over the world still enjoy their music very much. 全世界的人们仍然非常喜欢他们的音乐。
16. When he was eight, his father asked a music teacher to teach him to play the piano. 当他八岁的时候,他的父亲请了一位老师来教授他如何弹奏钢琴。
17. He says violin music is his favorite and it makes him happy.
他说小提琴是他的最爱,使他很快乐。
【重点语法】
1. What a pity! 真遗憾!
这是一个由what引导的感叹句。what引导感叹句的基本构成为:
what a / an (形容词) 可数名词单数 主语 谓语/系动词!
what (形容词) 可数名词复数/不可数名词 主语 谓语/系动词!如:
1) What a stupid question! 多么愚蠢的问题啊!
2) What lively boys they are! 多么活泼的男孩子们啊!
2. What are you going to do this Sunday evening? 这周日晚上你想干什么?
“be going to” 是一般将来时的一种表达方法,它表示:
1) 现在打算在最近或将来要做某事,如: Tom is going to Beijing with his father next week.
2) 说话人根据已有的迹象认为可能要发生某事,如: There are a lot of dark clouds. It’s going to rain.
“be going to”句式的基本结构:
肯定句:主语 be going to …
eg. He is going to stay at school.
否定句:主语 be not going to…
eg. I’m not going to the library this afternoon.
一般疑问句:Be 主语 going to…
eg. Are you going to play tennis next week?
be going to 用于there be 结构时要用There is/am/are going to be 主语 其它形式
如: There is going to be a football game tomorrow.
与be going to 连用的时间状语有:next week/month/year, tomorrow, the day after tomorrow, this evening, in the future等.
Topic3 What were you doing at this time yesterday?
【重点短语】
agree with sb. 与某人看法一致
take a shower 洗澡
answer the phone 接电话
do some cleaning 打扫卫生
knock at 敲
too…to 太…..以至于不能......
talk about 谈论关于......的事情
【重点句型】
1. I called you but nobody answered the phone. 我给你打电话了,但是没有人接。
2. Oh, I was taking a shower. 我在淋浴。
3. Yeah, I think so. 是,我也这样认为。
4. And I also like the young man with light hair. 我也喜欢那个留着浅色头发的年轻人。
5. He is so handsome! 他非常帅!
6. I agree with you. 我同意你的意见。
7. You look very sad. 你看起来很伤心。
8. There’s nothing serious. 没什么严重的事。
9. Well, Miss Wang was angry with me. 王老师生我的气了。
10. In the early 1800s, Sunday was the “holy day". 在19世纪早期,星期日的含义就是“神圣的一天”。
11. In the US, workers called them“blue Mondays". 在美国,工人们把它们叫做“蓝色星期一”。
12. Then decide how you are going to spend your weekend. 然后决定你的周末怎么过。
13. Did you have a good time? 你们玩得高兴吗?
【重点语法】
I was doing some washing. I was doing some cleaning.
我在洗衣服。 我在打扫卫生。这句用的是过去进行时.
1. 过去进行时表示过去某一时刻正在进行或发生的动作,也表示过去一段时间内的活动或那个阶段正在进行的动作,如:
He were watching TV at 8:00 last night.
They were writing a book last month.
2. 过去进行时由be (was/were) 动词ing 形式构成的
肯定句:主语 was/were doing …
否定句:主语 wasn’t/weren’t doing …
一般疑问句:Was/Were 主语 doing …
肯定回答:Yes, 主语 was/were.
否定回答:No, 主语 wasn’t/weren’t.
They were studying English at this tine yesterday.
They weren’t studying English at this time yesterday.
Were they studying English at this time yesterday?
Yes, they were. / No, they weren’t.
Unit 4 Our World
Topic1 Which do you like better, plants or animals?
【重点短语】
1. share…with 与……共享......
2. play with 玩弄,玩耍
3. in danger 在危险之中
4. feed on 以……为食
5. think about 考虑,思考
6. enjoy nature 享受自然
7. at night 在晚上
8. in the daytime 白天
9. summer vacation 暑假
10. thousands of 成千上万
11. in fact 事实上
12. find out 查明,发现
13. in nature 在自然界
【重点句型】
1. Plants are more beautiful than animals. 植物比动物更漂亮。
2. The plants stay green longer there. 那儿的植物能更长时间保持绿色。
3. The rainforests are very important to us. 雨林对我们很重要。
4. Water is necessary for all plants. It is the most important thing to all living things, we must save every drop of water. 水对所有植物是必需的。它对所有生物都重要,我们必须节约每一滴水。
5. Isn’t it interesting? 是不是很有趣呀?
6. It is one of the most dangerous fish in the world. 它是世界上最危险的鱼之一。
7. It is so strange! 太奇怪了!
【重点语法】
一. 形容词的比较级和最高级的构成
1. 规则变化:
(1)一般在词尾加—er或—est,如:fresh—fresher—freshest
(2)以字母e结尾的形容词,加r或st,如:late—later—latest
(3)以重读闭音节结尾的词,词尾只有一个辅音字母时,应双写这一辅音字母,再加er或est,如:big—bigger—biggest
(4)以辅音字母+y结尾的双音节词,先改y为i,再加er 或est,如:happy—happier—happiest
(5)部分双音节词和多音节词前面加more或most构成比较级或最高级。如:careful—more careful—most careful;beautiful—more beautiful—most beautiful
2. 不规则变化:
good/well—better—best
little—less—least
many/much—more—most
bad/ill—worse—worst
far—farther/further—farthest/furthest
二. 形容词的比较级和最高级的用法
1. 两者比较用比较级,经常与than搭配,可用much和a little修饰。
I’m happier than you. 我比你更快乐。
Plants are much more beautiful than animals. 植物比动物漂亮的多。
2. 三者或三者以上比较用最高级,一般给出比较范围,如:of(in)+…。
The boy is the tallest in my class. 这个男孩是我们班最高的。
Lesson Two is the most important of all. 第二课是所有中最重要的。
Topic2 How can we protect ourselves from the earthquake?
【重点短语】
1. take the place of 代替,取代
2. instead of 代替,而不是……
3. mistake…for… 把……错当
4. seem to do 好象,似乎
5. call for 要求
6. wake sb. up 将某人叫醒
7. see sb.doing sth. 看见某人正在做某事
8. use sth. for sth./doing sth. 利用某物做某事
9. spend…on… 在……上花费时间或金钱
10. be sure of 确信
11. these days 现在,目前
12. in alphabetical order 按字母表顺序排列
13. look up 查阅
14. pay attention to 注意,专心
15. begin with 以……开始
16. and son on 等等
17. switch on 开(电灯,机器等)
18. ask (sb.)for sth. 向……要……
【重点句型】
1. I’m sure robots can do some work better than humans. 我确信机器人比人能更好地做某些工作。
2. I saw a UFO while I was walking down the street yesterday. 昨天我沿着街道走时,看见了一个不明飞行物。
3. It looked like a plate. 它看上去像一个盘子。
4. Until now, even the scientists are not sure whether there are UFO. 直到现在,甚至科学家也不确定是否有不明飞行物。
5. We can shop without going out of our houses. 我们不出家门就能购物。
6. We can use the Internet for finding a job. 我们可以用网络来找工作。
7. We shouldn’t spend too much time on it. 我们不应该在因特网上面花费太多的时间。
8. When you look up a word in the dictionary, pay attention to the first letter of the word. 当你在字典里查一个单词的时候,注意这个单词的第一个字母。
【重点语法】
现在进行时与过去进行时的区别
1. 现在进行时表示现在正在发生或正在做的事情,基本结构is/am/are+现在分词doing,如:
肯定句:The robots are making a car now. 这些机器人正在生产小汽车。
否定句:We are not studying on the Internet. 我们没有在互联网上学习。
疑问句:Is the teacher looking up the word in the dictionary?这个老师正在词典中查这个词吗?
特殊疑问句:Who are you talking to?你在和谁谈话?
2. 过去进行时表示过去某一时间,正在发生或正在做的事情。基本结构was(were)+现在分词doing,如:
肯定句:When he came in, I was writing a letter. 当他进来时,我在写一封信。
否定句:They weren’t watching TV while she was reading. 她读书时,他们没在看电视。
疑问句:Was the UFO flying to us at 8 last night? 昨晚8点UFO向我们飞来了吗?
特殊疑问句:What were you drinking while we were sleeping? 我们睡觉时,你们在喝什么?
Topic3 The Internet makes the world smaller.
【重点短语】
1. more than 超过
2. pull down 推倒,拆毁
3. heavy traffic 交通繁忙
4. wear out 磨损,用坏
5. used to do sth. 过去常常做某事
6. do one’s best 尽(某人)最大努力
7. live models 真人模型
8. the ancient world 古代
9. be made up of 由……组成
10. join…together 把……连在一起
11. regard…as… 把……看作......
12. be worn out 被损坏
【重点句型】
1. Lots of them were pulled down in the 1960s. 他们当中许多在二十世纪六十年代被拆毁。
2. People thought them useless. 人们认为它们没有用。
3. It’s really too bad. 这太遗憾了。
4. We are doing our best to protect and rebuild the old city walls. 我们正在尽全力保护并重建老城墙。
5. It is one of the“seven wonders”of the ancient world still standing. 它是现存的古代“七大奇迹”之一。
6. It took 100,000 people over 20 years to build it. 修建它花了10万人二十多年的时间。
7. Since then, people regarded the Great Wall as a symbol of the Chinese nation. 从那以后,人们就把长城看作是中华民族的象征。
8. Every year many people find great pleasure visiting the wall. 每年有许多人参观长城,从中得到极大乐趣。
【重点语法】
反意疑问句:由陈述句(或祈使句、感叹句)加一个简短问句构成的疑问句叫反意疑问句。
一般对应规律:前肯后否;前否后肯。即陈述部分为肯定形式,附加问句用否定形式;陈述部分为否定形式,附加问句用肯定形式。如:
There are many pyramids in Egypt, aren’t there? 在埃及有许多金字塔,不是吗?
Sally visited the Great Wall last month, didn’t she? 萨莉上个月参观了长城,不是吗?
He doesn’t realize the importance of saving water,does he? 他没有意识到节约用水的重要性,是吗?
特例点拨:
1. I don’t think you can rebuild the house, can you?我认为你不能重修这座房子,是吗?(I don’t think…主要在说think后的内容,故按从句变化)。
2. 陈述部分有nobody,nothing,never,no,few(没几个),little(几乎没有),hardly(几乎不)等否定或半否定词时,仍视为否定句。根据反意疑问句对应规律,疑问部分用肯定形式。如:
There is nothing in the room, is there? 屋子里什么也没有,是吗?
Maria never surports me, does she? 玛丽亚从未支持过我,是吗?
He had few apples, did he? 他几乎没有苹果,是吗?
3. 祈使句的反意疑问句:无论肯定或否定,通常在祈使句后加上will you? 如:
Please close the door, will you?请关门好吗?
Don’t tear down the old walls,will you? 不要拆毁古墙,好吗?
但以Let’s开头的祈使句用shall we? 如:
let’s make a survey, shall we? 我们做个调查,好吗?
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