初一至初三重点词组及用法笔记

G7A
U1
1. an e-dog一个电子狗
2. I am in Class 1 Grade 7./I am in Class One Grade 7.
3. Amy is in Class 1 Grade 7. Lily is in Class 1 Grade 7.(合并成一句句子)
Amy and Lily are classmates.
4. be good at=do well in
eg. He is good at playing football.=He does well in playing football.
5. age at the age of … 在…岁
6. hobby—hobbies
7. be happy to do sth=be glad to do sth be + adj +to do sth
8. everyone做主语一般现在时用三单
eg. Everyone likes watching TV.
9. come from=be from
eg. He comes from China=He is from China.
10. glasses做主语时是复数，不用三单。The pair of glasses 做主语时单复数取决于量词pair.
11. I have long hair.=My hair is long.我有长头发。
12. She is eight years old.=She is an eight-year-old girl.
13. 动词可分为系动词和实义动词两类。系动词（以be动词举例）实义动词（以like举例）和all之间的位置关系——be all; all like. (both 用法和all一样, both-两者都, all-三者及以上都)
14. One of+可数名词复数，作为主语表三单
15. too much (太多)+不可数名词 too many (太多)+可数名词 much too (太)
16. teach sb (宾格) sth
17. how/what about doing sth
18. be kind to sb

U2
1. time (a.不可数名词—时间；b可数名词—次数/倍/时期)once一次；twice两次；三次(three times)及以上用time;
three times a month—一月三次
划线部分或者回答是
——three times a month(一月3次)——用how often提问（频率）
——about 10 minutes（大约10分钟）——用how long提问（时间长短）
——about 10 minutes’ walk (大约10分钟步行路程)——用how far提问（距离）
——in 10 minutes (在10分钟内，表将来时)——用how soon提问（将来时）

2. enjoy doing sth
3. a member of …中的一员
She is a member of the Reading Club.=She is in the Reading Club.
4. hope to do sth; hope+that从句 hope (n希望)
5. what else=what other things; anything else
6. a lot of=lots of+可数n/不可数n
7. Who do you usually talk with/to after school?
What do you usually talk about/of after school?
8. Make sb/sth + adj; make sb do sth让某人做某事
9. My brother with my parents goes shopping every week. (with连接前后两部分有就远原则)
10. Fun是不可数名词；matches; heroes

U3
1. The woman under the tree is my mother. (起修饰作用用which提问)
Which woman is your mother?
My mother is under the tree.
Where is your mother?
2. 如此 so+adj/adv; such+n/名词短语 特例： so many (表示多少) people
3. 学科首字母大写！
4. What’s the date today?—回答日期
What day is it today?—回答星期
5. At the school gate
6. In front of (两者独立个体)； in the front of (两者包含关系)
7. Keep a diary=keep diaries
8. a little; little +不可数名词 (a little-有一些; little-几乎没有) a few; few+可数名词
There is little milk in the fridge. Can you buy some?
There is only a little milk in the fridge. Can you buy some?
9. My home is far away from our school.
My home is 800 meters away from our school.
10. 花费（spend, take, cost, pay）
sb+spend+时间/金钱+ (in) doing sth./on sth.
Sth/it+take+时间+to do sth
Sth+cost+(sb)+金钱
Sb+pay+金钱+for sth
11. Borrow sth from sb (借来)； lend sth to sb (借给)
12. Which of the subjects do you like best? (which of the subjects的翻译顺序)
13. Sb in 衣服； in +颜色；衣服on sb
14. Thank you/thanks for sth/doing sth; thank you very much/thanks a lot for sth/doing sth
15. Open (v) 开（强调动作），be open (adj)开着的（强调状态）
Close (v) 关（强调动作），be closed (adj)关着的（强调状态） close (adj 亲密的)

U4
1. Shall与第一人称连用
2. Need 1.实义动词，need to do sth; 2.情态动词，need do sth; 3.可数名词
3. Rest 1. V 2. N, have a rest
4. Have fun=have a good time + doing sth
5. 时间逆读法 （9:15-a quarter past nine; 9:45-a quarter to ten）
6. Practise + doing sth; practice (n)
7. Exercise (v.锻炼; n.1. 可数名词: a. 练习; b. 具体某种锻炼（eye exercises）2. 不是具体的锻炼)
8. Would you please do sth
9. Wish: n,祝愿；v wish (sb) to do sth; wish+(that)从句
10. 想要做某事Would like=want +to do feel like doing sth
11. Luck (n) lucky (adj) luckily (adv)
12. Get (sth) ready for sth; be ready to do sth
13. Learn to do sth
14. in; on; at
in the morning/afternoon/evening; in+月份; in+年份; in+季节
on Sunday; on +（几年）几月几日；on+具体某天早中晚；on+含有day的节日
at+时间；at+年龄

U5
1. dress up as 打扮成… dress sb给某人穿衣服 wear/put on+衣服（wear强调状态，put on强调动作）
2. if解释为如果则主将从现；if解释为是否一般用将来时
3. play a trick/tricks on sb捉弄某人
4. question和problem的区别，question一般指需要回答的问题，problem一般指需要解决的问题
5. other+名词复数=others the other+名词复数=the others; others指剩余部分,the others指剩余全部 one…the other…(用于两个)
6. seem to do sth it seems that+句子
7. be different from difference (n)

U6
1. keep+adj keep (on) doing sth
2. change (v改变；n变化/零钱)
3. plan to do sth
4. salt (不可数名词) salty (adj)
5. a number of（一些）+名词复数，作主语代表复数； the number of（…的数量）后面用is
6. That’s right那是对的，that’s all right没关系，all right好吧
7. for breakfast和at breakfast区别，前者前面一般是食物后者前面是行为

U7
1. may be和maybe区别，前者代表情态动词+动词原形，一般放中间；后者是副词，一般放句首。
2. be interested in sth/doing sth interested (adj修饰人) interesting (adj修饰物) interest (n place of interest名胜古迹；show an interest in…在某方面展现兴趣)
3. match (n比赛/火柴；v匹配) 与fit区别，match一般指衣服/颜色match衣服/颜色，衣服/颜色fit人
fit (v/n适合；adj be fit for=be suitable for)
fit作动词还有容纳的意思
4. adj/adv+enough to do sth; enough+n+to do sth
5. 物品有贵贱，价格有高低
6. at the bus stop
7. would you like sth? —Yes, please/No, thanks.
Would you like to do sth? —I’d like/love to./Sorry, I’m afraid not.
8. buy sb sth=buy sth for sb
9. a shoe shop, two shoe shops, a sports shop, two sports shops
10. some, any 一般some用于肯定句，any用于否定句或者问句，如果问句是希望得到对方肯定回答也用some,比如would you like some…/can…

U8
1. think about=think of sth/doing sth
2. between和among前者用于两者之间，后者用于三者及以上之间
3. be made of（由…制成）+看得出的原材料
be made from (由…制成)+看不出的原材料
be made in+产地
4. find和look for 前者强调结果，后者强调过程
5. two more cakes=another two cakes (再来两个蛋糕，看数字和more/another的位置关系)
6. what do you think of sth=how do you like sth你认为sth怎么样？

G7B
U1
1. the capital of
2. 数字常规用法（以hundred举例）
hundreds of成百上千；2 hundred 两百
*Two hundred of the students come from China.
3. over超过=more than; 结束；横跨/在…上方（there is a bridge over the river.）
4. be full of=be filled with充满 fill…with
5. invite sb to do sth invitation (n)
6. look out小心；look out of+透过的介质；look out at+所看到的东西；look out from+所处地
7. 序数词前面加a/the/不填
come first (固定搭配)
on the second floor (强调第几第几)
they want to have a second child.（强调再一，又一）
7. 序数词注意（4；14；40；9；19；90）
8. a bedroom of my own=my own bedroom
9. it is +adj/n+(for sb/of sb)+to do sth

U2
1. will和be going to, 表示打算或者有预兆性的前提时用be going to
2. what is sb like (像)? —性格特征或者外貌（更倾向前者）
3. help sb do sth help sb with sth
4. something interesting (*注意something和形容词位置关系)
5. They make me feel happy. They make a fire to keep warm.
6. manager (n) manage (v) +to do sth
7. job和work作为工作前者可数后者不可数。Work作为作品则可数（works of art）
8. sound+adj *感官动词 (feel, taste, sound, look, smell)后面加形容词; sound也可作可数名词，feel well—此时表示身体状况
9. sick和ill区别，前者可做定语和表语，后者只可做表语。(be sick/ill; sick people)
10. information 不可数名词
11. worry (v) about sth=be worried (adj) about sth 对某事担忧；worry sb担忧某人 worry (n担忧)
12. 正在进行时表将来时常见单词: come, go, leave, arrive
13. be afraid of sth; be afraid of doing sth; be afraid to do sth; be afraid (that)+句子
14. ask sb to do sth; tell sb to do sth
15. family作为家人表复数，作为家庭表单数
16. Shall和will,前者只能跟第一人称，will都可以
17. 3种职业的问法 What is sb?=What does/do sb do?=What is sb’s job?
18. what to do=how to do it

U3
1.人称代词表格

2. an exchange student
3. quiet (adj)安静的；quite (adv)相当
quite和very区别
quite+adj=very+adj a very big apple=quite a big apple
4. be famous/known for因为…出名 be famous/known as作为…出名
5. miss (v思念) (v错过miss doing sth错过做某事) (n错误-可数名词)
6. look forward to doing sth
7. key (n钥匙，关键) the key to doing sth做某事的关键是…
8. raise (v饲养，募集，上升)
raise和rise都有上升的意思，区别在于前者是及物动词后者是不及物动词
9. 名词所有格表示方法：表单数直接后面加’s。 表复数后面加s’ ，特殊情况如men’s
Lily’s and Amy’s fathers和Lily and Amy’s father前者表示分别拥有，后者表示共同拥有
10. many more +复数名词；much more+不可数名词
11. hear听见 hear sb do sth (听到某人经常做某事) hear sb doing sth (听到某人正在做某事) （有同样用法的单词: see, watch, notice,feel）
hear of sth听说；hear from sb收到某人来信
12. drive sb to sp = take sb to sp by car

U4
1. have to do sth不得不做某事 don’t have to do sth=don’t need to do sth=needn’t do sth
have to和must区别，前者强调客观现实后者强调主观意愿
2. remember to do sth (记得要去做某事) remember doing sth (记得做过某事)，forget有相同用法
3. dangerous (adj) danger(n) be in danger处于危险中
4. laughter (n) laugh at sb嘲笑某人，smile at sb朝某人微笑
5. cross (v)=go across (prep)从物体表面穿过
through (prep)从物体本身穿过
pass (v)=go past (prep) 经过（与物体无接触），pass还有传递的意思 pass away去世
6. over—under表示垂直正上方或者下方；above—below非垂直上方或者下方
7. bench复数+es; treasure不可数名词
8. plenty of (大量)+可数名词/不可数名词
9. be sure of sth be sure to do sth
10. 方位介词（in, on, to）in表示包含关系；on表示相邻；to表间隔
11. 感叹句（详细可看感叹句讲义）
A. 引导词
What (what; what a; what an) How
B. What+名词/名词短语 How+形容词/副词（名词短语=形容词+名词）

U5
1. same前面要加the
2. at birth在出生时
3. stop to do sth (停下来去做另一件事) stop doing sth (停止做做某事)， continue=go on (继续)有同样的用法
4. fat (adj.胖的) (n.脂肪—不可数名词)
5. reply (n回复) (v回复 reply to sb)
6. forget不能和地点状语连用（I left my book at home我把书本忘记在家了。）
7. on one’s/the way to sp在去某地的路上；in one’s/the way挡道；in this way用这样的办法
by the way顺便问一下 in some ways在某些程度上
8. happen=take place 发生，没有被动语态。happen to do sth碰巧做某事
9. wonder (v想知道；n奇迹)
10. careful (adj)—careless carefully (adv)—carelessly carefulness (n)—carelessness
11. search sth搜索某物 search for sth为了搜索某物（search the Internet for information）
12. pick up捡起；接某人
13. surprise (v/n) surprising (adj—修饰物) surprised (adj—修饰人) to one’s surprise
14. come on 快点；得了吧；加油
15. Isn’t it interesting? 问句是肯定句，则回答yes代表是，no代表不是。问句是否定句，则回答yes代表不是，no代表是。
16. leave sp离开某地，leave for sp去某地

U6
1. an outdoor activity
2. hurry (v. hurry to do sth) (n. in a hurry)
3. complain (of/about sth) (to sb)向某人抱怨某事
4. alone和lonely, 前者表示行为上的孤独，后者表示心理上的孤独
5. put up搭建，张贴； put off推迟；put away放好；put out扑灭；put on穿上；put in安装; put through接通
6. decide (v) decide to do sth decision (n)
7. fail to do sth失败做某事
8. use sth to do sth=do sth with sth (使用某物做某事) make sth out of+原材料
9. 瓶子上或者纸条上写了什么东西都用say
10. a little=a bit=a little bit+adj； a little=a bit of+不可数名词

U7
1. be able (adj) to do; ability (n)—能力 disability (n)—无能
2. could用于问句仅仅表示委婉语气，用于肯定句表示can的过去式
3. in hospital/in the hospital前者表示住院后者表示在医院里
4. try to do sth尝试做某事；try/do one’s best to do sth 尽某人最大的努力做某事
5. show sb sth=show sth to sb给某人展示某物（send/feed/give/bring有相同用法）； show sb around sp 带领某人参观某地
6. recommend sb for… recommend sb to do sth
7. lose one’s way=get lost
8. be careful with sth小心某物 keep…away from…远离 be on fire着火

U8
1. raise cows饲养牛；keep pets饲养宠物
2. wide (adj.广泛的 adv.充分地)
3. bark at sb朝某人吠 run after追逐
4. fight with sb和某人打架；fight for sb为了某人打架
5. look after=take care of 照顾 look after sb well=take good care of sb照顾好某人
take care保重
6. till/until直到… 前者不能放于句首也不能和not连用
until (直到…)和not…until (直到…才…)前者主句用延续性动词，后者主句用瞬间性动词
7. In the end在结尾；at the end of在…最后
8. be in trouble处于麻烦中； have trouble (in) doing sth=have problems (in) doing sth=have difficulty (in) doing sth做某事有困难
9. touch触摸 keep in touch with 与…保持联系
10. go anywhere/everywhere (adv)
11. agree with sb agree to do sth agreement (n)
12. weigh (v) weight (n) 问体重: How much do/does sb weigh?

G8A
U1
1. keep a secret=keep secrets保密
2. teenager (n)青少年 teenage (adj)青少年的
3. humorous (adj) humour (n)
4. polite (adj)—impolite politely (adv)—impolitely
5. tidy (adj整洁的)—untidy tidy (v整理 tidy up)
6. lie (可数名词—谎言) (v—躺 lie-lay-lain-lying) (v—说谎 lie-lied-lied-lying)
7. true (adj真的) truth (n真相)
8. be kind/generous/… to sb 对某人….
9. be willing to do sth
10. have a good sense of humour/direction 幽默/方向感好
11. knock on the door敲门 knock sth onto+最后的归属地； knock sth off +远离地
12. choose—chose—chosen choose to do sth choice (n选择)
13. patient (adj有耐心的，n病人) impatient (adj没有耐心的)
14. an excellent boy
15. adj/adv比较级最高级用法看相关讲义

U2
1. discuss (v) discussion (n)
2. offer sb sth=offer sth to sb provide sb with sth=provide sth for sb 给某人提供某物
3. finish doing sth finished (adj完成的)
4. at lunchtime
5.
6. an ideal school
7. why not do sth=why don’t/doesn’t sb…为什么不做某事
8. have+一段时间+off 有…假期

U3
1. arrive in/at sp (in+大地点；at+小地点)=reach sp=get to sp到达某地
*when will you arrive? (此处到达只能用arrive，因为它是不及物动词，后面没有地点)
2. can’t wait to do sth迫不及待做某事 can’t help/stop doing sth忍不住做某事
3. get on (上车)—get off (下车) 这两个词组人称代词放介词后面 (与之前的词组要求人称代词放中间不同)
4. by oneself=on one’s own靠某人自己
5. cheer up振奋起来；cheer for sb为某人欢呼
6. free (adj) 免费的；自由的；空闲的

U4
1. had better do sth最好做某事
2. stand for=represent代表
3. instead of doing sth
4. mistake (n错误 make a mistake) (v误认为 mistake sb for sb)
5. (not only…but also 不仅…而且… either…or…要么…要么… neither…nor…既不…也不…)这三个词组都遵循就近原则 both…and… …和…
both-两者都；all-三者及以上的都；either-两者选其一；neither-两者都不；none-三者及以上都不
6. 建议 advise (v advise sb to do sth) advice (n-不可数) suggest (v suggest doing sth) suggestion (n)
7. correct (adj)—incorrect correctly (adv)—incorrectly
8. active (adj活跃的)—inactive activity (n活动) act (v行动) actor (n男演员) actress (n女演员) action (n行动)
9. possible (adj)—impossible possibility (n可能性)

U5
1. die (v) die of+内因 die from+外因 die-died-dead-dying death (n)
dead和dying作为adj时区别，前者表示死亡状态后者表示还没死亡
2. none和nothing区别,前者需要在直到具体问什么的情况下，后者则要不知道问什么的前提下
3. lose-lost-lost loss (n)
4. because+句子；because of+短语
5. accept to do sth

U6
1. nature (n) natural (adj)
2. stop sb (from) doing sth=prevent sb (from) doing sth=keep sb from doing sth阻止某人做某事
3. society (n) social (adj)
4. cover (n 盖子/庇护所；v 包括/直播)
5. speak (v) speaker (n) speech (n)
6. introduce (v) introduction (n)
7. call sb on+电话号码/at+邮箱

U7
1. have a good/poor memory
2. feel sleepy感到困倦的 fall asleep睡着

U8
1. loud (adj/adv) loudly (adv)
2. break down出故障；break into强行闯入；break up分手；break out爆发
3. When, while, as
When当…时，（时间段&时间点）——主句动作和从句动作同时或者先后发生。When引导的时间状语从句中动词可以用延续性动词，也可以用非延续性动词。
While与…同时，在…期间 (指时间段)——主句动作和从句动作同时发生。While引导的从句常用延续性动词或者表示状态的动词。主句用过去进行时从句也用过去进行时通常用while。
As正当…或者与…同时（时间段&时间点），弱化时间概念——同时发生。可用延续性动词或者非延续性动词。

G8B
U1
1. used to do sth过去常常做某事 be/get used to doing sth习惯做某事 be used to do sth被用来做某事
2. pollute (v) pollution (不可数名词)
3. interview (v/n采访 interview sb have an interview with sb) interviewer (n采访者) interviewee (n被采访者)
4. marry (v) married (adj) sb marry sb (嫁/娶某人) get married结婚 be married to sb 嫁给某人

U2
1. at the speed of …以…的速度
2. except除了 expect期望 (expect sb to do sth)
3. any +名词单数
4. 现在完成时具体看讲义

U3
1. dream of/about doing sth梦想做某事
2. mind doing sth介意做某事
3. please (v 使…开心) pleased (adj修饰人) pleasant (adj修饰物) pleasure (n)
my pleasure (用于别人感谢你时的回答) with pleasure (用于别人请求你帮忙时的回答)

U4
1. Germany (n德国) German (adj德国的/n德国人) Germans (德国人的复数)
2. can’t 不能/不会/不可能 mustn’t禁止 may not可能不是
3. on time和in time前者是指准时，后者指及时
4. refuse to do sth拒绝做某事
5. success (n) successful (adj) successfully (adv) succeed (v succeed in doing sth)
6. confident (adj) confidence (n)
7. experience (v经历) （n.经验—不可数名词；经历—可数名词)

U5
1. avoid doing sth避免做某事
2. behave (v) behavior (n)
3. express (v) expression (n)
4. warn to do sth警告做某事
5. risk doing sth冒险做某事

U6
1. volunteer (n志愿者) volunteer (v volunteer to do sth)
2. give up doing sth
3. do/perform an operation on sb operate (v)
4. be similar to与...相似

U7
1. afford to do sth
2. be proud (adj) of pride (n)
3. organize (v) organized (adj) organization (n)
4. make up one’s mind to do sth=decide to do sth
5. carry on sth开展/举行某事 carry on with sth继续某事

U8
1. turn on/off (打开/关闭) turn up/down (声音调高/低) turn around（转身）turn to (翻到)
turn…into…（把…变成）
2. allow sth allow sb to do sth
3. cut in on sb插嘴；cut out切断；cut down砍倒；cut…short缩短
4. run out=use up前者没有被动语态，后者有被动语态
5. make a difference to sb对…有影响
6. be in use在使用中

G9A
1. create (v) creative (adj)
2. be curious about sth
3. energy (不可数名词) energetic (adj)
4. impress sb with …
5. pay attention to doing sth
6. devote…to doing sth
7. appear (v)—disappear appearance (n) make one’s appearance露面
8. live (v居住) lively (adj生机勃勃的) alive (adj活着的) live (adv现场直播)
9. take on承担
10. can’t be too+adj太…也不为过
11. it is/was+被强调部分+that…(具体看强调句讲义)
12. it is said that +句子 据说….
13. That’s not the case事实并非如此

U2
1. influence on sb影响某人
2. prefer sth to sth prefer to do sth prefer to do sth rather than do sth
prefer doing sht to doing sth
3. would rather (not) do sth would rather do sth than do sth
4. remind sb of.. 使某人想起… remind sb to do sth提醒某人做某事
5. require to do sth
6. in one’s teens在某人十几岁时 in one’s thirties在某人三十几岁时
7. promise sb to do sth
8. There’s something wrong with… …有问题
9. be made to do sth
10. be of+名词to sb=be+adj to sb
11. 宾语从句用法（具体看宾从讲义）

U3
1. how to deal with=what to do with
2. have no choice but to do sth
3. stay up to do sth
4. imagine doing sth
5. be (well) worth sth/doing sth (没有被动语态)
6. be strict with sb in sth
7. value (n价值) valuable (adj有价值的)

U4
1. a great deal of+不可数名词
2. force sb to do sth
3. courage不可数名词
4. get sb to do sth让某人做某事
5. have sb/sth do/done sth (用do还是done看中间的sb/sth和后面动作呈主动还是被动关系，主动用do，被动用done)
6. admire sb for sth因某事钦佩某人

U5
1. present sth to sb=present sb with sth给某人颁发某物
2. common (adj)—uncommon in common (相同)
3. encourage sb to do sth
4. think highly of… 高度评价… speak/praise highly of… 高度赞扬..
5. breathe (v) breath (n)
6. make up编造/打扮
7. one and a half hours=one hour and a half一个半小时
8. see sb do/doing sth 对应的被动语态结构 be seen to do/doing sth
9. I did make some wonderful pictures later.此处就是加强语气，表示确实的意思。
10. for, since, because, as区别
A. 如果原因是构成句子的最主要部分,一般用because。because引导的从句一般不放在句子的开头。对于回答why的问句的必须要用because (eg. He isn't here today because he is ill.)
B. 如果原因已为人们所知,或不如句子的其余部分重要,就用as或since、since比as稍微正式一些。as和since引导的从句一般放在句子的开头.
C. for表示所说的理由是一种补充说明,因此,for引导的从句可以放在括号里,而且for引导的从句一般不放在句子的开头。（eg. He must be ill, for he isn't here.）

U6
1. (an) up-to-date=latest
2. vote for sb为某人投票 vote against sb反对某人
3. be busy doing/with sth

U7
1. so+adj/adv+that+句子 如此…以至于…
such+名词/名词短语+that+句子 如此…以至于 （两个用法和so/such一样，包括特例）
so that 以至于/以便
2. do you think放于句中表示插入语，做题时可以去掉
3. effort (精力—不可数名词) (努力—可数名词)
4. eg. I don’t like horror films. Neither do I. (我也是)
表示“也一样”用倒装，由3根横线构成：a. so/neither (前者表示意思是肯定；后者是否定) b. be/情态动词/助动词 (根据原句决定) c. 表示的人（用主语）
5. be considered as…被认为是… consider doing sth考虑做某事
6. insist on sth/doing sth insist that +句子
7. base on…基于
8. play the role of … in ….在某方面扮演…角色

U8
1. clue to… …的线索
2. be guilty of… 犯有…的罪
3. be wounded with sth/by sb (被…致伤)
4. be charge with…
5. the arrest of sb某人的逮捕 under arrest for sth因某事被逮捕
6. turn out It turns/turned out that+句子 结果是…
7. have nothing/something to do with…与…有/无关
8. in prison坐牢 in the prison在监狱里
9. safe (adj) safely (adv) safety (n)
10. steal (v偷)-stole-stolen theft (n偷窃) thief (n小偷)
11. be supposed to do sth=should do sth
12. do sth for a living做某事某生
13. 定语从句具体看定语从句讲义

G9B
U1
1. tiring (adj修饰物) tired (adj修饰人)
2. 分数表达：分子（基数词: one, two, three…）+分母 (序数词: first, second…)
*当分子大于1时，分母要加s。四分之一一般不用one fourth而用a/one quarter
3. population (人口)用large/big/small
4. attract (v 吸引) attraction (n 吸引) attractive (adj 吸引人的)
5. be open to (对…开放)
6. it 用于a.指动物和无生命的东西 b.指婴儿 c.指身份不明的人d.指前面提到的动作，情形或看法 e.指时间 f.日期 g.天气 h.距离 i.温度 j.形式宾语/主语

U2
1. invent (v) invention (n) inventor (n)
2. an astronaut
3. make a contribution to doing sth
4. increase by+幅度
5. produce (v生产) producer (n 生产者) product (n产品) production (n 生产)
6. in history在历史上

U3
1. satisfy sb 使某人满意 be satisfied with sb/sth对某人/某物满意 be satisfied to do sth
2. no longer (句中) =not…any more (句末)=not…any longer（句末） 不再
3. in a mess
4. regret doing sth遗憾做过某事

U4
1. gravity不可数名词
2. be aware of…



额外补充：
1. the+序数词/最高级+（名词）+to do sth
2. have time to do sth

to be continued