八下人教版英语第三单元语法

1. 八年级英语下册第三单元的知识点有哪些

Unit 3 What were you doing when the UFO arrived?

【单元目标】
1．单词与短语
well, buy, cut, land, while, experience, strange, around, follow, climb, shout, run, anywhere, happen, accident, modern, bright, silence, destroy, meaning, souvenir
1.get out (of) 2.in front of / in the front of 3. take off
4.buy for 5. land on 6. shout to / at 7.run away
8.come in 9.hear about 10.the Museum of Flight
11.happen to 12.stop doing 13.take place 14.as... as

2．目标句型：
1. What were you doing when...? 2. I was doing sth. when...
3. How about... / What about...? 4. What happened next?
5. While sth./sb. was doing sth., I did...
3．语法
1. 过去进行时
2. 情态动词的用法Ⅱ
【重难点分析】
一. 过去进行时
过去进行时表示过去某一时刻或者某段时间正在进行或发生的动作，常和表过去的时间状语连用，如：
I was doing my homework at this time yesterday.昨天的这个时候我正在做作业。
They were waiting for you yesterday.他们昨天一直在等你。
过去进行时的构成：
肯定形式：主语+was/were+V-ing
否定形式：主语+was not (wasn't)/were not (weren't)+V-ing
疑问形式：Was/Were+主语+V-ing。

基本用法：
1.过去进行时表示过去某一段时间或某一时刻正在进行的动作。常与之连用的时间状语有，at that time/moment, (at) this time yesterday (last night/Sunday/week…), at+点钟+yesterday (last night / Sunday…)，when sb. did sth等时间状语从句，如：
What were you doing at 7p.m. yesterday? 昨天晚上七点你在干什么？
I first met Mary three years ago. She was working at a radio shop at the time. 我第一次遇到玛丽是在三年前，当时她在一家无线电商店工作。
I was cooking when she knocked at the door. 她敲门时我正在做饭。
2. when后通常用表示暂短性动词，while后通常用表示持续性动词，因此它所引导的状语从句中，谓语动词常用进行时态，如：
When the car exploded I was walking past it.= While I was walking past the car it exploded.
3.when用作并列连词时，主句常用进行时态，从句则用一般过去时，表示主句动作发生的过程中，另一个意想不到的动作发生了。如：
I was walking in the street when someone called me. 我正在街上走时突然有人喊我。
4. when作并列连词，表示“（这时）突然”之意时，第一个并列分句用过去进行时，when引导的并列分句用一般过去时。如：
I was taking a walk when I met him. 我正在散步，突然遇见了他。
We were playing outside when it began to rain. 我们正在外边玩，这时下起雨来了。
二. 情态动词(Modal Verbs )Ⅱ

4、情态动词表示“应该”、“必须” （shall, should, may, might, must, ought to）
（1）shall 和 should 用于表示“必须”：
①. Each member shall wear a name card. (表示规定) 每一个会员必须配带名卡。
②. I should answer his letter as soon as possible. (表示应该) 我应该尽快给他回信。
③. You shouldn't judge a man always by the clothes. (shouldn't “不应该”含有劝告的意思)
你不应该总是以貌取人。
④. The rules shall take effect on Jan. 1st. (shall 用于规章等，表示义务和规定)
新规则于一月一日起生效。
（2）may 和 might 用于表示“应该"(多用于法律等条文，一般上多用 shall):
①. Payment may be paid by check.(表示规定) 应以支票付款。
②. You might ask before you use my computer. (might表示应该)
你应该先问过再使用我的电脑。
（3）must 用于表示“必须”、“务必”：
①. You must keep the place clean. (务必) 你务必保持地方干净。
②. We must obey orders. (表示有义务) 我们必须服从命令。
③. Must I pay now? (用于疑问句) (如回答不必时，需用 needn't 或 don't have to)
我现在就得付款吗？
5、情态动词表示“意图”、“打算”
(will, would, shall, should)
（1）will 和 would 用于表示某种意图：
①. I'll call you as soon as possible. (will 主要用于第一人称) 我会尽快打电话给你。
②. Will you accept this invitation? (用would 则表示更客气) 你愿意接受这邀请吗？
③. Who will do the job? (用于条件句，可用于各种人称) 谁愿意做这事？
④. We won't (will not) stay here too long. (will not 表示不愿) 我们不愿呆在这里太久。
（2）shall 和 should 用于表示说话人的意图：
①. We shan't (shall not) go if it rains. (shall not 也可用 will not)
如果下雨，我们就不打算走了。
②. I shan't go with you. (shall 只用在第一人称) 我不打算和你一同走。
6、情态动词表示“意愿”
（will, would, shall, should）
（1）will 和 would ：
①. She will do it if you ask her.(表示主语的意愿) 如果你问她，她会做的。
②. Would you have another cup of tea? (用 would 比 will 客气) 你想再来一杯茶吗？
③. Will you have some cookies? (will用于疑问句，表示问人是否愿意)你想吃些烤饼吗？
④. If he will, he can do it. (will 用于条件句，用于第二、三人称) 如果他愿意，他会做的。
⑤. Would you excuse me? (would 表示婉转语气) 你能原谅我吗？
（2）shall 和 should ：
①. He shall get his allowance. (注意是he shall, 表示说话人的意愿)他会拿到他的津贴的。
②. You should sit here as long as you like. 只要你乐意，坐多久能行。
③. Shall you go to school with me? (疑问句中，表示问对方的意愿)
你愿意和我一起到学校去吗？
三. 重点词汇
1．cut v．切；剪；割
cut (one’s)hair 理发
Be careful．Don't cut yourself．小心，别切到自己。

2．alien n．外星人
Nobody knows whether there are aliens or not．没人知道到底有没有外星人。
An alien got out of the UFO. 一个外星人从不明飞行物里出来。

3．land v．登岸；登陆；降落
The plane will land in ten minutes．飞机将在十分钟后降落。
A UFO landed in the middle of the field.. 一个不明飞行物降落在田野中间。

4．while conj．当……的时候；在……之时
While I danced, she sang．我跳舞，她唱歌。
While he was singing, I was playing baseball. 他当时在唱歌，而我在打棒球。

5．right adv．正好；恰好
The accident happened right over there．事故正好发生在那里。
He lives right in the center of the city. 他恰好住在市中心。

6．surprised adj．惊奇的；吃惊的
I was surprised that he was late for the party．我很惊讶他聚会居然迟到了。
She was surprised that I didn’t know about that. 她很吃惊我竟不知那件事。

7．kid v．欺骗；哄骗
I'm not kidding you．我没有骗你。
You’re kidding = No kidding. 别开玩笑了。

8．anywhere adv．到处；无论哪里（用于否定句和一般疑问句中）
Did you go anywhere yesterday? 你昨天去没去过什么地方?
They didn’t go anywhere the day before yesterday. 他们前日天哪里也没去

9．happen v．发生
A funny thing happened in the subway yesterday． 昨天地铁里发生了一件有趣的事。
What happened to him on that day? 那天他怎么了？（发生了什么事？）
sth. happen to +名词 发生于……身上
She hoped nothing bad would happen to him．她希望不会有坏事发生在他身上。

10．get out of 从……出去
She tried to get out of helping her mother．她尽量逃避帮助她的妈妈。
Tom got out of the lift and walked to the station. 汤姆走出电梯然后往车站走去。

11．run away 跑开；迅速离开；逃走
The thief ran away when someone noticed him．当有人注意到他的时候，那个贼立刻逃走了。

12．at the doctor's 在诊所；在医院
I'm thinking of going to the tailor's．在表示诊所、店铺或某人的家时，经常用名词所有格的形式。
Mr. Cool’s = Mr. Cool’s clothes store at Jason’s = at Jason’s store
She is staying at Mary's．她住在玛莉家。
I want to go to the tailor’s. 我想到裁缝店去一趟。

13. see sb. Do sth. 看见某人做(过)某事
she saw the alien get out. 她看见外星人出来.

四．词语辨析
1、in front of 与in(at) the front of
in the front of 在……的前面 （表示“有距离的前面”，在一个参照物的前面）
e.g.: There is a car in front of the house. 房子前日面有一辆车
in(at) the front of 在……的前头，前排（列）（在一个范围内的前面部位）
eg. She sat in the front of the bus. 她坐在公交车的前排

2、get out of 与get into 是反义词
get into走进，进入
eg. He get out of the car and get into the building.

3、be amazing与be amazed
be amazing 令人惊奇的（修饰事物的，指某事令人惊奇，比surprising更具意外性
e.g.:She has an amazing talent for music.她在音乐方面有惊人的才华。
Isn’t that amazing .那不很令人意外吗？
be amazed (at sth./to do …/that 从句)（某人）对…(因…而)大感惊讶(指人作主语)
eg. We were amazed at the news.=We were amazed to hear the news.
我们对这个消息感到非常惊讶.

4、be surprising与 be surprised
be surprising令人惊奇的（用法与be amazing一样，也是修饰事物的）
e.g.:a surprising ending 一个令人惊奇的结局
be surprised (at sth./to do…/that从句) （某人）对…(因…而)感到惊奇，用法与be surprised
一样，也是人作主语。
eg. They were surprising that he was badly hurt in the audient. 他们很吃惊他在那次事故中伤得很重。

5、in a tree与 on a tree
eg. Are there any birds in the tree? 树上有些鸟吗？
on a tree 在树上（指长在树上的东西）
Look! There are many apples on the tree.

6、my flight to New York 与 fly to New York
前者是一个名词短语，后者是一个动词短语。
eg. Her flight to Paris is taking off at 2 p.m.
She is flying to Paris at 2 p.m.

五.课文解释：
1. You can imagine how strange it was!你可以想象这事有多惊奇！
eg. You can imagine how fast he runs!

2. I followed it to see where it was going
follow sb. to do sth. 跟随…去做…
eg. Mr White followed his wife to see what was happening there.

3. She didn’t think about looking outside the station.
Think about (doing) sth. 她未想到去车站外看看.

4. say to sb. 对某人 say to oneself 自言自语
e.g.: He said to himself, “Don’t be afraid.” 他自言自语,“不要害怕”

5. look for 寻找（强调找的“过程”） find 找到（强调找的“结果”）
eg. He looked for his lost key everywhere but couldn’t find it.

6. It was difficult to get out of bed. 从床爬起来很难。
It is difficult/hard to do sth. 做某事很难。
He found that it was difficult to learn physics well.

7. be killed 被杀害 be destroyed by… 被……摧毁……

8. walk home together in silence 沉默着一起走回家
in silence 状语（状态）

9. Not all events in history are as terrible as this.
并不是所有的历史上的大事件都像此事这样可怕。
Not all 并不是所有的（部分否定）
As…as… 与……一样(as与as之间用形容词、副词的原级)

10. become the first Chinese astronaut in space. 成为中国首位进入太空的宇航员

11. His flight around the Earth Lasted about 22 hours. 他的环绕地球的飞行持续了22个小时。

12. Do you think sth. good can come out of sth. terrible? 你认为坏事能变为好事吗？

2. 八年级下册英语第三单元知识点有哪些

Unit 3 What were you doing when the UFO arrived?

【单元目标】
1．单词与短语
well, buy, cut, land, while, experience, strange, around, follow, climb, shout, run, anywhere, happen, accident, modern, bright, silence, destroy, meaning, souvenir
1.get out (of) 2.in front of / in the front of 3. take off
4.buy for 5. land on 6. shout to / at 7.run away
8.come in 9.hear about 10.the Museum of Flight
11.happen to 12.stop doing 13.take place 14.as... as

2．目标句型：
1. What were you doing when...? 2. I was doing sth. when...
3. How about... / What about...? 4. What happened next?
5. While sth./sb. was doing sth., I did...
3．语法
1. 过去进行时
2. 情态动词的用法Ⅱ
【重难点分析】
一. 过去进行时
过去进行时表示过去某一时刻或者某段时间正在进行或发生的动作，常和表过去的时间状语连用，如：
I was doing my homework at this time yesterday.昨天的这个时候我正在做作业。
They were waiting for you yesterday.他们昨天一直在等你。
过去进行时的构成：
肯定形式：主语+was/were+V-ing
否定形式：主语+was not (wasn't)/were not (weren't)+V-ing
疑问形式：Was/Were+主语+V-ing。

基本用法：
1.过去进行时表示过去某一段时间或某一时刻正在进行的动作。常与之连用的时间状语有，at that time/moment, (at) this time yesterday (last night/Sunday/week…), at+点钟+yesterday (last night / Sunday…)，when sb. did sth等时间状语从句，如：
What were you doing at 7p.m. yesterday? 昨天晚上七点你在干什么？
I first met Mary three years ago. She was working at a radio shop at the time. 我第一次遇到玛丽是在三年前，当时她在一家无线电商店工作。
I was cooking when she knocked at the door. 她敲门时我正在做饭。
2. when后通常用表示暂短性动词，while后通常用表示持续性动词，因此它所引导的状语从句中，谓语动词常用进行时态，如：
When the car exploded I was walking past it.= While I was walking past the car it exploded.
3.when用作并列连词时，主句常用进行时态，从句则用一般过去时，表示主句动作发生的过程中，另一个意想不到的动作发生了。如：
I was walking in the street when someone called me. 我正在街上走时突然有人喊我。
4. when作并列连词，表示“（这时）突然”之意时，第一个并列分句用过去进行时，when引导的并列分句用一般过去时。如：
I was taking a walk when I met him. 我正在散步，突然遇见了他。
We were playing outside when it began to rain. 我们正在外边玩，这时下起雨来了。
二. 情态动词(Modal Verbs )Ⅱ

4、情态动词表示“应该”、“必须” （shall, should, may, might, must, ought to）
（1）shall 和 should 用于表示“必须”：
①. Each member shall wear a name card. (表示规定) 每一个会员必须配带名卡。
②. I should answer his letter as soon as possible. (表示应该) 我应该尽快给他回信。
③. You shouldn't judge a man always by the clothes. (shouldn't “不应该”含有劝告的意思)
你不应该总是以貌取人。
④. The rules shall take effect on Jan. 1st. (shall 用于规章等，表示义务和规定)
新规则于一月一日起生效。
（2）may 和 might 用于表示“应该"(多用于法律等条文，一般上多用 shall):
①. Payment may be paid by check.(表示规定) 应以支票付款。
②. You might ask before you use my computer. (might表示应该)
你应该先问过再使用我的电脑。
（3）must 用于表示“必须”、“务必”：
①. You must keep the place clean. (务必) 你务必保持地方干净。
②. We must obey orders. (表示有义务) 我们必须服从命令。
③. Must I pay now? (用于疑问句) (如回答不必时，需用 needn't 或 don't have to)
我现在就得付款吗？
5、情态动词表示“意图”、“打算”
(will, would, shall, should)
（1）will 和 would 用于表示某种意图：
①. I'll call you as soon as possible. (will 主要用于第一人称) 我会尽快打电话给你。
②. Will you accept this invitation? (用would 则表示更客气) 你愿意接受这邀请吗？
③. Who will do the job? (用于条件句，可用于各种人称) 谁愿意做这事？
④. We won't (will not) stay here too long. (will not 表示不愿) 我们不愿呆在这里太久。
（2）shall 和 should 用于表示说话人的意图：
①. We shan't (shall not) go if it rains. (shall not 也可用 will not)
如果下雨，我们就不打算走了。
②. I shan't go with you. (shall 只用在第一人称) 我不打算和你一同走。
6、情态动词表示“意愿”
（will, would, shall, should）
（1）will 和 would ：
①. She will do it if you ask her.(表示主语的意愿) 如果你问她，她会做的。
②. Would you have another cup of tea? (用 would 比 will 客气) 你想再来一杯茶吗？
③. Will you have some cookies? (will用于疑问句，表示问人是否愿意)你想吃些烤饼吗？
④. If he will, he can do it. (will 用于条件句，用于第二、三人称) 如果他愿意，他会做的。
⑤. Would you excuse me? (would 表示婉转语气) 你能原谅我吗？
（2）shall 和 should ：
①. He shall get his allowance. (注意是he shall, 表示说话人的意愿)他会拿到他的津贴的。
②. You should sit here as long as you like. 只要你乐意，坐多久能行。
③. Shall you go to school with me? (疑问句中，表示问对方的意愿)
你愿意和我一起到学校去吗？
三. 重点词汇
1．cut v．切；剪；割
cut (one’s)hair 理发
Be careful．Don't cut yourself．小心，别切到自己。

2．alien n．外星人
Nobody knows whether there are aliens or not．没人知道到底有没有外星人。
An alien got out of the UFO. 一个外星人从不明飞行物里出来。

3．land v．登岸；登陆；降落
The plane will land in ten minutes．飞机将在十分钟后降落。
A UFO landed in the middle of the field.. 一个不明飞行物降落在田野中间。

4．while conj．当……的时候；在……之时
While I danced, she sang．我跳舞，她唱歌。
While he was singing, I was playing baseball. 他当时在唱歌，而我在打棒球。

5．right adv．正好；恰好
The accident happened right over there．事故正好发生在那里。
He lives right in the center of the city. 他恰好住在市中心。

6．surprised adj．惊奇的；吃惊的
I was surprised that he was late for the party．我很惊讶他聚会居然迟到了。
She was surprised that I didn’t know about that. 她很吃惊我竟不知那件事。

7．kid v．欺骗；哄骗
I'm not kidding you．我没有骗你。
You’re kidding = No kidding. 别开玩笑了。

8．anywhere adv．到处；无论哪里（用于否定句和一般疑问句中）
Did you go anywhere yesterday? 你昨天去没去过什么地方?
They didn’t go anywhere the day before yesterday. 他们前日天哪里也没去

9．happen v．发生
A funny thing happened in the subway yesterday． 昨天地铁里发生了一件有趣的事。
What happened to him on that day? 那天他怎么了？（发生了什么事？）
sth. happen to +名词 发生于……身上
She hoped nothing bad would happen to him．她希望不会有坏事发生在他身上。

10．get out of 从……出去
She tried to get out of helping her mother．她尽量逃避帮助她的妈妈。
Tom got out of the lift and walked to the station. 汤姆走出电梯然后往车站走去。

11．run away 跑开；迅速离开；逃走
The thief ran away when someone noticed him．当有人注意到他的时候，那个贼立刻逃走了。

12．at the doctor's 在诊所；在医院
I'm thinking of going to the tailor's．在表示诊所、店铺或某人的家时，经常用名词所有格的形式。
Mr. Cool’s = Mr. Cool’s clothes store at Jason’s = at Jason’s store
She is staying at Mary's．她住在玛莉家。
I want to go to the tailor’s. 我想到裁缝店去一趟。

13. see sb. Do sth. 看见某人做(过)某事
she saw the alien get out. 她看见外星人出来.

四．词语辨析
1、in front of 与in(at) the front of
in the front of 在……的前面 （表示“有距离的前面”，在一个参照物的前面）
e.g.: There is a car in front of the house. 房子前日面有一辆车
in(at) the front of 在……的前头，前排（列）（在一个范围内的前面部位）
eg. She sat in the front of the bus. 她坐在公交车的前排

2、get out of 与get into 是反义词
get into走进，进入
eg. He get out of the car and get into the building.

3、be amazing与be amazed
be amazing 令人惊奇的（修饰事物的，指某事令人惊奇，比surprising更具意外性
e.g.:She has an amazing talent for music.她在音乐方面有惊人的才华。
Isn’t that amazing .那不很令人意外吗？
be amazed (at sth./to do …/that 从句)（某人）对…(因…而)大感惊讶(指人作主语)
eg. We were amazed at the news.=We were amazed to hear the news.
我们对这个消息感到非常惊讶.

4、be surprising与 be surprised
be surprising令人惊奇的（用法与be amazing一样，也是修饰事物的）
e.g.:a surprising ending 一个令人惊奇的结局
be surprised (at sth./to do…/that从句) （某人）对…(因…而)感到惊奇，用法与be surprised
一样，也是人作主语。
eg. They were surprising that he was badly hurt in the audient. 他们很吃惊他在那次事故中伤得很重。

5、in a tree与 on a tree
eg. Are there any birds in the tree? 树上有些鸟吗？
on a tree 在树上（指长在树上的东西）
Look! There are many apples on the tree.

6、my flight to New York 与 fly to New York
前者是一个名词短语，后者是一个动词短语。
eg. Her flight to Paris is taking off at 2 p.m.
She is flying to Paris at 2 p.m.

五.课文解释：
1. You can imagine how strange it was!你可以想象这事有多惊奇！
eg. You can imagine how fast he runs!

2. I followed it to see where it was going
follow sb. to do sth. 跟随…去做…
eg. Mr White followed his wife to see what was happening there.

3. She didn’t think about looking outside the station.
Think about (doing) sth. 她未想到去车站外看看.

4. say to sb. 对某人 say to oneself 自言自语
e.g.: He said to himself, “Don’t be afraid.” 他自言自语,“不要害怕”

5. look for 寻找（强调找的“过程”） find 找到（强调找的“结果”）
eg. He looked for his lost key everywhere but couldn’t find it.

6. It was difficult to get out of bed. 从床爬起来很难。
It is difficult/hard to do sth. 做某事很难。
He found that it was difficult to learn physics well.

7. be killed 被杀害 be destroyed by… 被……摧毁……

8. walk home together in silence 沉默着一起走回家
in silence 状语（状态）

9. Not all events in history are as terrible as this.
并不是所有的历史上的大事件都像此事这样可怕。
Not all 并不是所有的（部分否定）
As…as… 与……一样(as与as之间用形容词、副词的原级)

10. become the first Chinese astronaut in space. 成为中国首位进入太空的宇航员

11. His flight around the Earth Lasted about 22 hours. 他的环绕地球的飞行持续了22个小时。

12. Do you think sth. good can come out of sth. terrible? 你认为坏事能变为好事吗？
请采纳答案，支持我一下。

3. 求八年级下，人教版英语1至3单元重点句型与语法

UNIT ONE less than free time in the future hundreds of go skating space station come true in the past
be able to do housework
一般将来时（will/shall+do)
表示在将来时间内所做的动作或所处的状态，常用的时间状语为tomorrow next week in 10 years,等等
be going to +动词原词， be 随人称的变化而变化
一般疑问句及简略回答
比较级more ,less,fewer的应用
UNIT two
keep out what's wrong?/the matter?/the problem with..?
out of style call sb up on the phone pay for part-time
the same as get on as much as possible all kinds of
on the one hand / on the other hand
情态动词should could 的用法 should 意为“应该”，表示一种义务，责任或建议，它本身无人称变化，且后接动词原形 could 为can 的过去式，可用来表示过去的能力或语气的委婉性，无人称变化，后面接动词原形
why don't you...?
表示“为什么不。。“
相当于Why not do..?用来向别人提出建议，本身为否定句，但表达的是肯定意义，相当于汉语中的反问句
UNIT THREE
barber shop take off come in take place get out run away hear about as ... as
WHEN/WHILE 引导的时间状语从句
时间状语从句为复合句中的一种，该句型中常用的引导词有after before when while as not ..until 等，它们所引导的从句常用来说明主句中的动作所发生的时间
过去进行时
（1）过去进行时用来表示某人/物在过去某时或某段时间内正在做某事
（2）其结构为：陈述句：主语+was/were+v.ing(肯定）
主语+was/were+not+v.ing (否定）
一般疑问句：Was /Were +主语+v.ing?
特殊疑问句：特殊疑问词+was/were+主语+v.ing?

4. 求人教版 英语 八下 第三单元（Could you please clean your room）

1、can 表示现在的能力,could 表示过去的能力,例如：He can speak a little English now.
She could play the piano when she was five.
2、在表示请求许可时,没有时间区别,在语气上could 更加委婉客气,例如：
Can I use your pen
Could I have a look at your book
3、在表示可能性方面,没有时间区别,can 可能性比could 大；1、can 表示现在的能力,could 表示过去的能力,例如：He can speak a little English now.
She could play the piano when she was five.
2、在表示请求许可时,没有时间区别,在语气上could 更加委婉客气,例如：
Can I use your pen
Could I have a look at your book
3、在表示可能性方面,没有时间区别,can 可能性比could 大；表示逻辑上或理论上的可能性,而不是某种实际上将要发生或正在发生的可能性.
Can it be true?这会是真的吗?
Anybody can make mistake.任何人都可能犯错误.
The weather here could be very cold in winter.冬天这的天气有时很冷.
一般用于否定句和疑问句.
He can't be at home.他不可能在家.
注意和may not 的区别.
He may not be at home.他可能不在家.
也可以用于肯定句.,
An accident can happen if you do this.
如果你这样做,可能会发生事故

5. 初一下人教版英语第三单元语法重点

Unit 3 重点语法：
词汇辨析.：1. take/spend/pay/cost
spend，cost，take和pay都可以表示“花费”，但用法却不尽相同。
spend的主语必须是人，常用于以下结构：(1) spend time ／money on sth. 在……上花费时间（金钱）。例：I spent two hours on this maths problem. 这道数学题花了我两个小时。
(2) spend time ／ money (in) doing sth. 花费时间（金钱）做某事。例：They spent two years (in) building this bridge. 造这座桥花了他们两年时间。
cost的主语是物或某种活动，还可以表示“值”，常见用法如下：
(1)sth. costs (sb.) ＋金钱, 某物花了（某人）多少钱。例：A new computer costs a lot of money. 买一台新电脑要花一大笔钱。
(2) (doing) sth. costs (sb.) ＋时间,某物（做某事）花了（某人）多少时间。例：Remembering these new words cost him a lot of time. 他花了大量时间才记住了这些单词。
注意：cost的过去式及过去分词都是cost,并且不能用于被动句。
take后面常跟双宾语，常见用法有以下几种：(1) It takes sb. ＋时间＋to do sth. 做某事花了某人多少时间。例：It took them three years to build this road. 他们用了三年时间修完了这条路。
(2)doing sth. takes sb. ＋时间,做某事花了某人多少时间。例：Repairing this car took him the whole afternoon. 他花了一下午修车。
pay的基本用法是：(1) pay (sb.) money for sth. 付钱（给某人）买……。例：I have to pay them 20 pounds for this room each month. 我每个月要付20英磅的房租。(2)pay for sth. 付……的钱。例：I have to pay for the book lost. 我不得不赔丢失的书款。
(3)pay for sb. 替某人付钱。例：Don't worry! I'll pay for you. 别担心，我会给你付钱的。
(4)pay sb. 付钱给某人。例: They pay us every month.他们每月给我们报酬。
（5）pay money back 还钱。例：May I borrow 12 yuan from you? I'll pay it back next week. 你能借给我12块钱吗？下周还你。

2. get to/ arrive in/arrive at/reach
reach后不用加介词如 I reach school.
get要加介词，但接副词时不用如THERE HOME HERE
get to直接加地方
arrive in/at也直接加地方，但IN 是大地方，AT是小地方
reach,get,get to,arrive in/at都是及物动词，但arrive 不加介词时是不及物动词，可以不加宾语.如:I arrive 我到达了。
不能说I reach,/get/,get to,它们后面要加宾语。
3. other/others/the others/the other/another
1.other可作形容词或代词，做形容词时，意思是“别的，其他”，泛指“其他的（人或物）”。如： Do you have any other question(s)? 你还有其他问题吗？ Ask some other people. 问问别人吧！ Put it in your other hand. 把它放在你另一只手里。
2.the other指两个人或物中的一个时，只能用the other，不能用another，此时的other作代词。如： He has two daughters. One is a nurse, the other is a worker. 他有两个女儿，一个是护士，另一个是工人。 the other后可加单数名词，也可加复数名词，此时的other作形容词。如： On the other side of the street，there is a tall tree. 在街道的另一边，有一棵大树。 Mary is much taller than the other girls. 玛丽比其他的女孩高得多。
He lives on the other side of the river. 他住在河的对岸。
3.others是other的复数形式，泛指“另外几个”，“其余的”。在句中可作主语、宾语。如： Some of us like singing and dancing, others go in for sports. 我们一些人喜欢唱歌和跳舞，其余的从事体育活动。 Give me some others, please. 请给我别的东西吧！ There are no others. 没有别的了。
4.the others意思是“其他东西，其余的人”。特指某一范围内的“其他的（人或物）”。是the other的复数形式。如： Two boys will go to the zoo, and the others will stay at home. 两个男孩将去动物园，其余的留在家里。.the others=.the other+可数名词复数
5.another=an other，既可作形容词，也可作代词，只能用于三个或更多的人或物，泛指同类事物中的三者或三者以上的“另一个”，只能代替或修饰单数可数名词。如： I don’t like this one. Please show me another. 我不喜欢这一个，请给我看看另一个。 I have three daughters. One is a nurse, another is a teacher and another is a worker. 我有三个女儿。一个是护士，另一个是教师，还有一个是工人

1. take的用法.
㊀、拿，取 I want to take some books to the classroom. 我想拿些书到教室。
㊁、吃，喝，服用，放 ① Take this medicine three times a day. 每天吃三次药。 ② Do you take sugar in your milk? 你喝的牛奶里放糖吗？
㊂、乘车(船)等 ① Shall we go there by bike or take ataxi? 我们是骑自行车去那还是坐出租车去？ ② They usually take a bus to work. 他们通常乘公交车上班。
㊃、常常和it连用，it在句子中作形式主语，真正的主语是后面的不定式。翻译成“花费(时间、金钱)等” ① How long will it take you to do yourhomework every day? 每天做作业要花费你多长时间？
② It usually takesher 20 yuan to buy books every week. 每周买书通常要花费她20元钱。
㊄、“做……事情”,常常和名词连用，表示与该名词意义相关的动作 例如：take a walk散步, take a rest休息一下, take a look看一看等等。 构成常用的重要词组：
1. take away 拿走 Tom takes the knife away from the little boy. 汤姆从小男孩手里把刀拿走了。
2. take care (=be careful=look out) Take care! The caris coming! 小心！车来了！
3. take (good) care of (好好)照顾，照料 I can take care of the baby all bymyself. 我自己能照顾这个小孩。 4. take down 取下来 Take down the picture and put up the map of the world. 摘下这张图画，挂上一幅世界地图。
5. takeout 拿出 Please take out apiece of paper and write down your names on it, OK? 拿出一张纸，在上面写下你们的名字，好吗？
6. takeoff脱下；飞机(等起飞) ① Sorry! You have to take off your shoesbefore getting into the computer room. 对不起，在进入微机室之前，先要把你的鞋子脱掉。 ② The plane is going to take off soon. 飞机马上就要起飞了。
7. take one's temperature 量体温 Ming Ming is ill. The doctor istaking his temperature now. 明明生病了，大夫正在给他量体温。
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祝你学习进步、学习快乐。

6. 初二下英语第三单元3a翻译

上个月，当我从学校放学回家后我们家的小狗过来欢迎我。他想要我带他出去散步，可是我太疲劳了。我放下我的书包然后走向了客厅。当我刚坐在电视机前妈妈就向我走了过来，说:“你可以带狗狗出去溜一圈吗？”

“我可以先看一会儿电视吗？”我问到。“不可以!”她生气的回答说，“你天天就知道看电视，回家了也从来不会帮忙打扫卫生。我不可能每天都白天工作晚上还要回家打扫卫生。”

“好，我每天白天在学校也要一直学习上课。我和你一样劳累。”我回吼道。妈妈没有再说什么直接走开了。整整一个星期，她没有做任何家务活，我也没有。最终，我没办法找到一只干净的盘子或一件干净的衬衫。第二天妈妈下班回家发现屋子里干净又整洁。

“发生了什么?”她惊讶得问道。

“我很抱歉，妈妈。我终于明白了一件事，我们需要一同做家务以拥有一个干净又舒适的家。”我回复道。

(6)八下人教版英语第三单元语法扩展阅读

文章中的重点词汇

month 月 月份

welcome 欢迎 迎接

tired 疲劳的 劳累的

living room 客厅

the minute 一……就……顷刻间

reply 回复 回答

angrily 生气地

evening 晚上 傍晚

shout 吼 大声叫

housework 家务活

happened 发生

understand 理解 明白

share 分享 共享

clean 干净的

7. 八年级下英语unit3的语法，句型，易错题

1. in fron...of 在..前面

2.getting out of +地点 从...出来

3.cutting hair 剪头发

4.当while前后的句子描述的情况相对或相反，内while可译为“而” while更强调并列的容对比而并非转折。

5.was/were+doing （过去进行时）

6.以字母结尾ie的动词，变ie为y,再加doing

7.took off 起飞

be suiprised 感到吃惊 （主语是人）

how + 形容词或动词

an unusual experieuce 一次不寻常的经历

jump down 跳下来

was too scred 太恐怖了

took piace 发生 （没有被动）

hears about 听到

in moderm history 在现代历史上

everday activities 日常活动

become a nationai hero 成为一个英雄

all over the world 世界各地

hears about + 名词/代词/短语
=heart of

in silence 沉默地

8. 人教版英语八年级下册第三单元总结1重点单词2短语3重点句4语法

.