in on的用法!还有Be动词和助动词的用法!最好有例子!什么时候要用be,什么时候要用助动词!再请概括一下七年级新目标英语1-6单元的重点和考点!

in on的用法!还有Be动词和助动词的用法!最好有例子!什么时候要用be,什么时候要用助动词!再请概括一下七年级新目标英语1-6单元的重点和考点!
in on的用法!
还有Be动词和助动词的用法!最好有例子!什么时候要用be,什么时候要用助动词!
再请概括一下七年级新目标英语1-6单元的重点和考点!

in on的用法!还有Be动词和助动词的用法!最好有例子!什么时候要用be,什么时候要用助动词!再请概括一下七年级新目标英语1-6单元的重点和考点!
一. in,on在方位名词前的区别
1. in表示A地在B地范围之内.如：
Taiwan is in the southeast of China.
2. on表示A地与B地接壤、毗邻.如：
North Korea is on the east of China.
二. at, in, on在表示时间上的区别
1. at指时间表示：
（1）时间的一点、时刻等.如：
They came home at sunrise （at noon, at midnight, at ten o’clock, at daybreak, at dawn）.
（2）较短暂的一段时间.可指某个节日或被认为是一年中标志大事的日子.如：
He went home at Christmas （at New Year, at the Spring Festival, at night）.
2. in指时间表示：
（1）在某个较长的时间（如世纪、朝代、年、月、季节以及泛指的上午、下午或傍晚等）内.如：
in 2004, in March, in spring, in the morning, in the evening, etc
（2）在一段时间之后.一般情况下,用于将来时,谓语动词为瞬间动词,意为“在……以后”.如：
He will arrive in two hours.
谓语动词为延续性动词时,in意为“在……以内”.如：
These products will be produced in a month.
注意：after用于将来时间也指一段时间之后,但其后的时间是“一点”,而不是“一段”.如：
He will arrive after two o’clock.
3. on指时间表示：
（1）具体的时日和一个特定的时间,如某日、某节日、星期几等.如：
On Christmas Day（On May 4th）, there will be a celebration.
（2）在某个特定的早晨、下午或晚上.如：
He arrived at 10 o’clock on the night of the 5th.
（3）准时,按时.如：
If the train should be on time, I should reach home before dark.
三. at, in和on表示地点时的区别
1. at表示地点：
（1）用于指较小的地方.如：
I shall wait for you at the station.
（2）用于门牌号码前.如：
He lives at 115 Zhongshan Road.
2. in表示地点：
（1）用于指较大的地方.如：
He lives in Shanghai.
（2）虽然是很小的地方,如果说话人住在那里,也可用in.商店、学校、机关等,若看作一个地点（point）用at,若看作一个场所（place）用in.如：
I met him at the post-office.
I’m now working in the post-office.
3. on表示地点,一般指与面或线接触,意为“在……上；在……旁”.如：
The picture was hanging on the wall.
New York is on the Hudson River.
be是一个连系动词,它有自己不同的形式
现在时：be 进行时：being 过去时：was/were 过去分词：been
它的后面必须跟形容词或名词作表语,与之构成系表结构,充当句子的谓语.
i am a student主语：i 谓语：am a student（系表结构）
being是它的现在进行时态,一般不单独用,而是用于现在进行时的被动语态.（being+动词过去分词）
the bike is being repaired.单车正在被修理中.
it is being finished by him这正在被他完成中.
been是它的过去分词,也不一般单独使用,而是用于现在完成时、过去完成时以及需要它的句子.
i have been here for a long time.我已经到这里有一段时间了.
至于你的问题,这与你想表达的意思有关.
你的工作是什么?
what do you do? what is your job?
那么这里选用do和is有什么根据呢?
第一句里面,第二个do是指你做什么,也就是你的工作,就是一个实义动词.按中文说,what you do已经足够了.可是英语里面就不行,必须跟一个助动词,也就是do.
这里就有了一个结论：当句子中有动词时,我们就用助动词do或是does.如果没有动词时,我们就选用is或是are,也就是b“Be”除了原形的“be”之外,还有另外七种形式：am, is, are, been, being, was, were.
在句子中,“be”可以是主动词(The Principal Verb)或助动词(The Auxiliary Verb).
当主动词时,“be”在性质上属于接系动词(The Linking Verb), 后面要有名词、形容词、地方副词或短语作补足语(The Complement).例如：
1. The man is a science teacher.
2. Mary's new dresses are colourful.
3. I have been there before.
4. Mother is in the kitchen now.
这四个都是陈述句,可以变成疑问句,方法简单,把主语和“be”或助动词对换位置即可：
5. Is the man a science teacher?
6. Are Mary's new dresses colourful?
7. Have I been there before?
8. Is mother in the kitchen now?
当“be”要在祈使句中出现时,它必须借重助动词“do”或“don't”之助,如：
9. Don't be silly!
10. Do be obedient!
11. Don't be a fool!
“Be”有两种缩写法,如下：
12. He's not./He isn't.
13. You're not./You aren't...
但“am + not”的缩写法只有一个：
14. I'm not.
有人用“ain't”, 但这并不是标准英语.
谈过了“be”作主动词的功能,现在看看“be”作助动词时,有些什么用法：
1.“Be + 现在分词”以组成进行式时态(Continuous Tenses),如：
15. Tony's maid is washing his new car.
16. The children are playing in the field.
17. Samuel was eating when I came in.
18. We have been living here since 1959.
2.“Be + 过去分词”以组成被动语态(The Passive Voice),如：
19. Her money in the drawer was stolen.
20. A number of good jobs are taken up byforeigners.
21. David studied in Taiwan but has been trained as a language lecturer in America.
22. Can all the wonderful birds be found in our Bird Park?
23. The disobedient boy was told to stand out- side the classroom.
24. Steps are being taken to reduce traffic con- gestion during peak hours.
25. Dishonest students will be immediately dealt with.
当陈述句的谓语是实义动词时,助动词do通常用于疑问句和否定句中.如：
I go to school every day.
我每天上学.
Do you go to school every day?
你每天都上学吗?
I don”t go to school every day.
我不是每天都上学.
另外,助动词do还可用于强调句中,用于强调谓语动词.如：
将助动词do及do 的相应形式放于动词前,而动词要用原形.又如：
I did tell him.
我的确告诉他了.
He does like playing football.
他的确喜欢踢球.
其余时候do作动词原形,表示做.
七年级英语下册第1-2单元重点短语集锦
1. be/come from来自 2. a little / a bit of 一点(修饰不可数名词)
3. like doing sth/like to do sth 喜欢做某事(前者强调习惯,后者强调一次性)
4. write to sb 给某人写信 5. tell sb about sth 告诉某人关于某事
6. on weekends 在周末 7. go to the movies 去看电影
8. live in 居住在 9. speak English 说英语
10. in October 在十月(在日期和表示星期几的词前用on, 在日期或者星期几的上午、下午或者晚上用on,在某年、某月、某季节前用in,在某个时刻前用at)
11. post office 邮局 12. pay phone 投币式公用电话
13. on Center Street 在中心街 14. near here=in the neighborhood 在附近
15. across from 在……对面 16. next to 在旁边
17. in front of 在……前面 18. between…and… 在……和……之间
19. turn left/right 向左(右)转 20. on the left/right 在左(右)边
21. take a walk = have a walk = go for a walk 散步
22. have fun = have a good time 玩得高兴
23. take a taxi 乘出租车 24. have a good trip 旅途愉快
25. go down/along 沿着……向前走 26. go through 穿过
27. the way to 去……的路 28. next Sunday下个星期天
29. on your left/right 在你的左(右)边 30. welcome to 欢迎来到
31. the beginning of 在……的开始 31. pen pal 笔友
32. the United States 美国 32. the United Kingdom 英国
练习题：用适当的介词填入下列空格中.
1. _____ Sundays we often stay ________ home.
2. He is__________ Australia. He speaks English.
3. Bob lives _______ Toronto, Canada.
4. Monday is the beginning ________ a week.
5. ______ the evening of May 1st, I visited my uncle.
6. There are many people ________ Chang’an Street every day.
7. Does your sister write ________ you every month?
8. Please tell me ________ yourself.
9. ________ weekends, I often play computer games.
10. Excuse me, could you tell me the way _______ Mianzhu Library?
11. There were many trees _____ the neighborhood one year ago.
七年级英语下册第3-4单元重点短语集锦
1. let sb do sth 让某人做某事 2. kind of 有几分
3. at night 在晚上 4. South Africa 南非
5. play with 和……玩 6. shop assistant 店员
7. bank clerk 银行职员 8. TV/ police station 电视台/警察局
9. work with 和……工作 10. work for 为……工作
11. work hard 努力工作(学习) 12. get…from…从……得到……
13. give sb sth=give sth to sb把某物给某人
14. in the day 在白天 15. talk to/with 和……谈话
16. ask sb questions问某人问题 17. go out to dinners 出去吃晚饭
18. in a hospital 在医院里 19.write stories 写故事
练习题：1-6单项选择题, 7-11根据所给汉语完成句子.
1. He sleeps ______ the day and works______ night.
A. in; in B. on; at C. in; at D. during; in
2. Tony works ______ a magazine. He likes working_______ young people.
A. for; with B. with; for C. on; with D. for; on
3. It is ________ animal. It is _______ scary.
A. a kind of; a kind of B. a kind of; kind of C. a kind of; kinds of
4. She _______ just now.
A. gives a book to me B. gave me a book C. gave me it
5. Let him _______ you.
A. help B. to help C. helping D. helps
6. Look! Mary is talking _______ her two good friends.
A. about B. to C. on D. for
7. 他们喜欢出去吃晚饭.
They like___________ ___________ __________ _________.
8. 他在医院工作.
He works __________ ________ ____________.
9. 杰克学习很努力.
Jack _________ ___________.
10. 这只狮子来自南非.
This lion __________ __________ __________ ___________.
11. 昨天我儿子从我这拿走了100美元.
My son ________ 100 dollars _________ me yesterday.
七年级英语下册第5-8单元重点短语集锦
1. talk on the phone 打电话 2. wait for 等待
3. talk about 谈论关于……的事情 4. read the newspaper 看报
5.TV show 电视节目 6. on vacation 在度假
7. take a photo=take photos 照相 8. look at 看
9. have a good time 玩得高兴 10. pretty good 相当不错
11. a little bit 一点儿 12. look like 看起来像
13. medium height 中等个子 14. medium build 中等身材 (体格)
15. stop doing sth 停止做某事(注: stop to do sth停下来做另一件事) 16. pop singer 流行歌手 17. house of dumplings 饺子店
18. would like to do sth = want to do sth 想要做某事 19. green tea 绿茶
20. remember doing sth “记得做过某事”,此动作已经发生(注: remember to do sth “记得做某事”,即此动作还没有发生)
练习题: 用所给词语的适当形式填空.
1. – Is that Peter speaking?
–No, this is David. Peter _________________ (read) the newspaper.
2. We _______(take) many ________(photo) when we went to the Great Wall.
3. When the teacher came into the classroom, the students __________ (stop)
___________ (talk).The teacher said, “Boys and girls, _________ (stop)
___________ (write) a letter to your parents.”
4. Jenny ___________ (look) like her aunt.
5. I’d like ___________ (buy) a pair of sunglasses.
6. I_____________ (wait) for a bus in the bus stop.
7. Mona ____________ (talk) on the phone now.
8. We __________ a good time in Chengdu one week ago.
9. Our geography teacher is medium _______________ ( high).
10. Jay is a pop ___________ (sing).
11. Listen! Lily and Lucy____________ (talk) about their PE teacher.
12. Please _________ (look) at the blackboard.
13. There are many TV __________ (show) in CCTV.
14. This morning I had breakfast at a house of _____________ (dumpling).
15. I’m so hungry now. I want ___________ (order) something to eat.
16. I remember __________ (tell) you about it.
17. Peter, remember _________ (take) a shower before you go to bed.

很全面

in:在……里面；在某个较长的时间；在某个地点等。
at:在某个具体时刻；（上面那个答案真的超级具体，但是我们7年级暂时用不到at的第（2）个解释是在初3才学到。对与我们7年级生来说有点复杂。现在7年级at主要用于某个具体时刻。）。
on:在……表面，或表示放在……的上面。
重点例题： 在墙上：如果是挂在墙上，可用on;(The Picture on the wall)...

全部展开

in:在……里面；在某个较长的时间；在某个地点等。
at:在某个具体时刻；（上面那个答案真的超级具体，但是我们7年级暂时用不到at的第（2）个解释是在初3才学到。对与我们7年级生来说有点复杂。现在7年级at主要用于某个具体时刻。）。
on:在……表面，或表示放在……的上面。
重点例题： 在墙上：如果是挂在墙上，可用on;(The Picture on the wall)只要是覆于表面，就可用on。如果像窗户镶在墙的里面，用in，因为窗户已经成为了墙的一部分。
(1--4单元的很容易掌握，都是最最最基本的）较重要的就是学会看时间和打电话用语。
七年级的5、6单元，重点掌握there be句型。以及学校，社区，街道用语。重点作文题目
“My school life.”我的学校生活 （课本21页，一定要背。）
“…… 's day”谁谁谁的一天（7页 Jane's day ）
PS：虽然我的答案不是最准确的，可我本人一直这样理解，每次大小英语测验从未低于95。）
最后PS下：上面的那个答案真的很标准，很精确，可是，对于我们7年级生来说，95%的生词，谁会看啊？

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