人教版九年级英语作文范文(10篇)

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人教版九年级英语作文范文 第1篇

一、no matter how/what/when/where ...无论如何/什么/什么时候/什么地方……

【考点说明】该词组引导让步状语从句,相当于however / whatever / whenever / wherever引导的让步状语从句。

No matter where/Wherever I go, I'll not forget you.无论我去哪里都不会忘了你。

No matter what/Whatever you do, you should do it well.无论你做什么,你都必须做好。

No matter when/Whenever you come here, you should come to see me.无论你什么时候来这儿,都要来看我。

二、have been to曾经到过某地

【考点说明】该句型强调目前人已回到原地,常和表次数的名词连用。

He has been to Beijing many times. 他曾到过北京多次。

How many times have you been to Shanghai? 你到过上海几次?

【区别于】 gone to到某地去了,强调人在途中。

-Where is he?

--他在哪儿?

-He has gone to the playground.

--他到操场去了。

He isn't in his office, perhaps he has gone to the playground.他不在办公室,可能到操场去了。

been in 在某地呆过,常和for引导的时间段连用,表曾在某地呆过一段时间。

I have been in Nanjing for three months. 我曾在南京呆过三个月。

How long have you been in Beijing? 你在北京呆过多长时间?

三、What is...like?……怎么样?

【考点说明】该句型询问外表或性格特点或特定情况。询问特定情况时可改成How is...?

-What is he like?

--他长得/为人怎么样?

-Handsome/ Kind.

--漂亮/心地善良。

What is the weather like in your hometown?

=How is the weather in your hometown? 你家乡的气候怎么样?

【区别于】What does...look like? ……看起来怎么样?询问外表。

What does this building look like?这幢楼房看起来像什么?

What does she look like? 她长得怎么样?

四、How long have you...?你已经……多长时间了?

【考点说明】该句型询问动作或状态延续多长时间,常用for或since引导的时间状语进行回答。

-How long have you lived here?

--你在这儿住了多久?

-Since the end of last year.

--自从去年年底以来。

-How long have you learned English?

--你学英语多长时间了?

-For eight years.

--八年。

五、疑问词+不定式

【考点说明】疑问词+不定式可作主语、宾语、表语等。

When to start is unknown to me.何时出发我不知道。

I don't know where to spend my summer holidays.我不知道到哪儿过暑假。

My question is where to find this kind of book.我想问的问题是到哪儿能找到这种书。

人教版九年级英语作文范文 第2篇

教材分析

本章是正式系统学习化学的第一章,带领学生进入化学课堂、走进绚丽多彩的化学世界。教材介绍了生活中形形色色的化学物品、精彩而神秘的化学变化,让学生了解化学课的学习内容、认识化学变化的基本特征,初步形成“物质是变化的”这一基本哲学观点,激发学生对化学的好奇心和学习。通过如何探究物质的性质的活动,体验科学探究的重要性,认识科学探究的主要步骤,培养学生合作与交流的习惯和能力。

学情分析本章是化学启蒙教育的第一章,带领学生走进化学课堂,通过对一门新功课的学习,激发学生对化学学习的兴趣。教材介绍了生活中形形色色的化学物品,让学生认识化学课学习的内容,认识化学变化的基本特征,初步形成物质是变化的这一基本的哲学观点,增强学生对化学的好奇心和学习。

教学目标知识与技能:

1、了解化学课学习的内容,玻璃仪器的洗涤,物理性质与化学性质的概念;

2、了解药品的取用方法和加热操作,物理变化与化学变化的判断,科学探究的主要步骤。

过程与方法:

1、通过对一些生活简单变化的分析,认识化学变化的基本特征;

2、通过对化学实验的基本操作及安全知识的学习,培养学生良好的实验习惯;

3、通过对铜加热变黑实验的探究,了解科学探究的主要步骤。

情感态度价值观:

通过对一门新功课的学习憧憬和疑问,激发学生对化学课学习的兴趣,使学生认识到化学是现代社会不可缺少的一门重要科学。

教学措施通过实验及科学探究激发学生对化学课学习的兴趣,使学生认识到化学是现代会不可缺少的一门重要科学。

人教版九年级英语作文范文 第3篇

fond of doing sth. 喜欢做某事

eg:She is fond of doing chemical experiments. 她喜欢做化学实验。

on/carry on/go on doing sth. 继续做某事

eg:We keep on going on and on cause this is where we both belong. 让我们一直拥有,并走下去,因为这是我们俩共同拥有的。

like doing sth. 想要做某事

eg:I feel like giving up on the job. 我觉得我不能从工作中摆脱出来。

doing sth. 练习做某事

eg:They practice doing so quickly and accurately. 他们学习快而准确的做。

up doing sth. 放弃做某事

eg:If my boss asks me to do such kind of thing any more, Ill give up working. 如果我老板再要我做这样的事,我就辞职不干了。

good at/do well in doing sth. 擅长做某事

eg:For example, the Dutch do well in disposing of wastes. 欧洲就非常善于使用再生资源,例如:荷兰的垃圾。

attention to doing sth. 注意做某事

eg:We should pay attention to our behavior in public. 在公共场所应注意自己的言谈举止。

about/how about doing sth. ……怎么样(好吗)?

人教版九年级英语作文范文 第4篇

“What’s the matter, mum?”

As soon as I enter the door, I find that my mother is 31 . It’s unusual –she usually32 the door and welcomes me with a smile!

“She’s dying,” mum says sadly. I 33 what she says. The tulip (郁金香),mother’s 34 is dying.

A month ago, we moved 35 our new house and mum bought a very beautiful tulip. Mum liked it very much. 36 she was free, she would sit 37 her armchair beside the tulip and enjoys its beautiful color 38 inviting smell.

She treated it like a baby and looked after it 39 . She put the tulip by window and moved it from one place to 40 to give the tulip enough sunshine. The first thing she did when she 41 every morning was 42 the tulip. Mum also fertilized(施肥)it many times.

She hoped that with great care, the tulip would become more and more beautiful and 43 . But the tulip was dying 44 too much sunshine, water and fertilizer.

It’s true that mother loved the tulip. But this kind of love 45 be harmful(有害的). Love can sometimes kill what you love.

places

up the bed

piano her face

take cut water pull

of

人教版九年级英语作文范文 第5篇

wonder n.奇迹 v.想知道;对…好奇

band n.乐队

review n.评论

ancientadj.古老的;远古的

composition n.作文

grade n.成绩;年级

pyramid n.金字塔

pupil n.学生

meeting n.会议

listen up注意听

callv.叫做;名为;打电话

event n.事件;比赛项目

naturaladj.自然的

get out of从…内出来/离开

lightadj.明亮的 n.光线;灯

reply v.回答

clear v.散开;打扫干净a dj.清晰的

rise v.升起

ground n.地面

below prep.在…的下面

edge n.边缘

on the edge of处于…的边缘

bottom n.底部

at the bottom of在…的底部

canyon n.峡谷

side n.边;面;侧

disappear v.消失

distance n.距离

huge adj.巨大的

face v.面对;面临n.脸

sight n.景象

height n.高度

lift n.电梯

view n.景色

attract v.吸引

description n.描述

location n.地点;位置

人教版九年级英语作文范文 第6篇

Unit 1 How do you study for a test ?

Section A

Ⅰ for a lot

with a group about

Ⅱ1-8 BCCACBCA

Ⅲ.

Section B

ⅠA 5. at all

club to learn English not at all

Ⅱ learn

Ⅲ1-6BBABAC

Self check

Ⅰ.mistakes

Ⅱ.

Ⅲ.3146572

Reading

Ⅰ.begin with of all on at

Ⅱ. notes up down up up

Ⅲ. Ⅳ Ⅴ1-5 BDEAC Ⅵ 略

Unit2 I used to be afraid of the dark

Section A

Ⅰ of B to be afraid of ’t you ’t you

Ⅱ 性格用词 funny shy friendly serous kind outgoing quiet

外貌用词 tall medium build ugly short medium height curly hair straight hair

Ⅲ used to you use to used to you use to you use to Ⅳ.1-10CBBACCBABC

Section B

ⅠA. doing sth

B. alone of on Ⅱ.1-6 BBBCCB Ⅲ.536124

Shelf check

Ⅰ.

Ⅱ. in front of a large group on alone afraid of use to after Ⅲ.BAECD

Ⅳ.

Reading

Ⅰ.1-5ACCAC Ⅱ.’t to wear use to wear Ⅲ. from stressed excited instead with

Ⅳ to ’t Ⅴ. 1-5 TTFTF Ⅵ.略

Unit3. Teenagers should be allowed to choose their own clothes

Section A

Ⅰ. 4. pierce ’s

be allowed to choose ’t think be allowed of

Ⅱ.1-5 CACBB Ⅲ. agree 2. I agree disagree 4. I agree agree

Section B

Ⅰ.A. 1. rules night do by Ⅱ. be sleep Ⅲ.1-5 CGDEF

Shelf check

Ⅰ 1-10 CACBBBCBAB Ⅱ 1-5 CABBB Ⅲ Ⅳ from 4. will fail of steict with Ⅴ

Reading

Ⅰ1-12BABBBCBBCBCA Ⅱ like does to 4. writing newspaper volunteer on strict with Ⅲ A1-5 CBACA Ⅳ 略

Unit4 what would you do?

Section A

ⅠA research million dollars around the world if a walk

B would anyone

Ⅱ 1-10BCCBBCCBAB Ⅲ FDEAB

Section B

Ⅰ A public a speech 5. have a cold permission in the slightest down

B. along with of in public

Ⅲ 1-5DACEB Ⅳ 1-10 ACCAAABCAC

Shelf check

Ⅱ up with permission along with front of a long walk

人教版九年级英语作文范文 第7篇

初三英语知识点精选归纳

I. 重点短语

1. at the moment

2. used to

3. for a while

4. walk away with sth.

5. leave for some place

6. sooner or later

7. pay for

8. come up with an idea

9. think of

10. have a try

11. all over the world

12. be famous for

13. large numbers of

14. all the year round

15. no matter what

16. give up

17. for example

18. by the way

19. on business

20. so far

21. come true

22. set off

23. slow down

24. go on doing

25. wait for

26. be proud of

27. be afraid of

28. speak highly of

29. a year and a half

30. half a year

31. pick up

32. as soon as

33. keep… clean

34. take care of

35. cut down

36. make a contribution to

37. base on

38. make sure

39. take away

40. begin with

41. right now

42. as soon as possible

43. leave a message

44. all kinds of things

45. walk around

46. fall asleep

47. wake up

48. go on a trip

49. have a good time

50. take photos

51. come out

52. come on

53. have a family meeting

54. talk about

55. go for a holiday

56 go scuba diving

57. write down

58. by oneself

59. walk along

60. get a chance to do sth

61. have a wonderful time

62. book a room

63. have an accident

64. be interested in

65. use sth. to do sth.

66. make a TV show

67. be amazed at

68. take part in

69. feed on

70. get out of

II. 重要句型

1. Why don’t you do sth.?

2. make sb. Happy

3. borrow sth. from sb.

4. forget to do sth.

5. pay fro sth.

6. return sth. To sb.

7. learn sth. from sb.

8. be famous for sth.

9. No matter what…

10. be with sb.

11. go on doing sth.

12. speak highly of sb.

13. keep doing sth.

14. allow sb. To do sth.

15. encourage sb. to do sth. 16. It is said that…

III. 交际用语

1. --- Excuse me, have you got …?

--- Yes, I have. (Sorry, I haven’t.)

2. --- Why don’t you …?

--- Thanks, I will.

3. --- Thanks a lot. (Thank you very much.)

--- You are welcome.

4. --- Have you ever done…?

--- Yes, I have, once. (No, never.)

5. --- I’ve just done…

--- Really?

6. ---What’s …like ?

7. --- How long have you been…?

--- Since…

8. --- Have you ever been to…?

--- I’ve never been there. (None of us has./ Only …has. )

9. --- Would you like to have a try?

--- I don’t think I can…

10. --- What have you done since…?

11. --- How long have you been at this …?

--- For…

12. --- How long has she/ he worked there…?

--- She’s / He’s worked there for… / all her / his life.

13. --- I’m sorry he isn’t here right now.

14. --- May I help you?

15. --- That’s very kind of you.

16. ---Could we go scuba diving?

17. --- Could you tell us how long we’re going to be away?

18. --- Let’s try to find some information about it, OK?

19. --- Could you please tell me how to search the Internet?

20. --- Go straight along here.

21. ---Please go to Gate 12.

22. --- Please come this way.

23. --- Could you tell me what you think about Hainan Island?

24. --- That sounds really cool!

IV. 重要语法

1. 宾语从句

2. 现在完成时

3. 一般过去时与现在完成时的用法比较:

【名师讲解】

1. Maybe/ may be

(1) maybe是副词,意思是“大概,也许”,常用作状语。

Maybe you put it in your bag.也许你把它放在包里了。

“Will he come tomorrow?”“Maybe not.” “他明天来吗?”“也许不”。

(2) may be相当于是情态动词may与be动词搭配一起作谓语,意思是“也许是…,可能是…”。

It may be 9:00 when they arrive.他们可能于九点到达。

The man may be a lawyer. 那人也许是律师。

2. borrow/ lend/ keep/ use

(1) borrow表示的是从别人那里借来东西,即我们通常所说的“借进来”。

We often borrow books from our school library.我们经常从学校图书馆借书。

I borrowed this dictionary from my teacher. 我从老师那儿借来了这本字典。

borrow是一个瞬间完成的动作,因此不能与时间段连用。

You can borrow my recorder for three days. ( 错误 )

I have borrowed this book for only one week. ( 错误 )

(2) lend表示的是把自己的东西借给别人,即我们通常所说的“借出去”。

Thank you for lending me your bike.谢谢你把自行车借给我。

He often lends money to his brother.他经常借钱给他弟弟。

lend与borrow一样,也是一个瞬间完成的 动作,不能与一段时间连用。

(3) keep的意思也是“借”,但一般是指借来后的保存或使用阶段,是一段持续的时间,因此可以与时

间段连用。

You can keep my recorder for three days.我的录音机你可以借用三天。

I have kept this book for only one week.这本书我才刚借了一星期。

(4) use也可以当“借用”讲,但它的本意是“用,使用”。

May I use your ruler? 我能借你的尺子用一下吗?

He had to use this public telephone.他不得不使用这部公用电话。

3. leave/ leave for

(1) leave意思是“离开,留下”。

We left Shanghai two years ago.我们两年前离开了上海。

He left his cell phone in the taxi last week.他上周把手机落在出租车里了。

(2) leave for意思是“前往”,表示要去的目的地。

We will leave for Tibet next month.我们将于下月去x藏。

The train is leaving for Moscow.这趟火车即将开往莫斯科。

4. since/ for

(1) since用于完成时态,既能用作介词,也能用作连词,后常接时间点,意思是“自从”。

He has been a worker since he came into this city.

自从他来到这个城市,他就是工人了。

I have never seen him since we last met in Shanghai .

自从我们上次在上海见过之后,我再也没见过他。

since作连词,还有“既然”的意思。

Since you are interested in it, just do it. 既然你对它感兴趣,那就做吧。

You can have fun now since you’ve finished your work.

既然你已经做完了功课,就开心玩会儿吧。

(2) for用于完成时,用作介词,后常接一段时间,意思是“经过…”。

I have learned English for five years.我已经学了五年英语了。

They have waited for you for 30 minutes.他们已经等了你三十分钟了。

for也可以用作连词,但意思是“因为”。

They missed the flight for they were late.他们由于完到了而误了航班。

He fell ill for many reasons.他由于多种原因病倒了。

9. except/ besides

(1) except是指不包括后面所提人或物在内的“除了”,可以理解为“撇开…不谈”,表示两部分的不同。

Everyone is excited except me.

除我以外的每个人都很激动。(他们激动,而我却不激动)

All the visitors are Japanese except him.

除他以外的所有游客都是日本人。(其他人是日本人,可他不是)

(2)besides是包括后面所提人或物在内的“除了”,可以理解为“除之外…还、除之外…又”,表示两部分的相似性。

Twenty-five students went to the cinema besides him.

除他以外,还有25个学生去看了电影。(他和另外25人都去了)

We like biology besides English.

除了英语外,我们还喜欢生物。(生物和英语都喜欢)

besides还可用作副词,意思是“此外;而且”,常用于句首或句尾。

He is a great thinker, and besides, he is a politician.

他是一名伟大的思想家,除此以外,他还是一位政治家。

They encouraged me, and they supported me with money, besides.

他们不仅鼓励我,而且与我以金钱上的支持。

10. keep doing/ keep on doing

(1) keep doing指的是连续地、坚持不断地做某事,中间不间断。

It kept blowing for a whole day.刮了一整天风了。

The temperature keeps dropping.温度持续下降。

(2) keep on doing是指反复坚持做某事,但动作之间略有间隔。

They have kept on writing to each other for many years.他们已经互相通信多年了。

After drinking some water, he kept on talking.喝了一些水后,他坚持讲话。

11. seem/ look

(1) seem一般着重于以客观迹象为依据,意思是“似乎、好象、看起来…”。

The baby seems to be happy.婴儿看上去似乎很高兴。

He seemed to be sorry for that.他似乎为那件事感到抱歉。

seem能与to do结构连用,而look不能。

It seems to rain. 似乎要下雨了。

They seemed to have finished their work.他们似乎已经完成了工作。

在it作形式主语的句型中只能用seem。

It seems that he is quite busy now.他现在看起来很忙。

It seems to us that there is nothing serious.在我看来没什么大不了的。

(2) look用作“看起来;好像”时,常从物体的外观或样貌上来判断,是以视觉所接受的印象为依据的。

The room looks clean.这间房看起来很干净。

The girl looks like her mother.那女孩看起来向她的妈妈。

12. such/ so

(1)such常用作形容词,用来修饰名词。

Don’t be such a fool.别这么傻。

He is such a clever boy.他是如此聪明的一个男孩。

(2) so是副词,用来修饰形容词或副词。

He is so kind! 他真好心!

Why did you come so late? 你为何回来得如此晚?

当名词前有many, much, few, little等表示多、少时,应该用so。

He has so many friends.他有如此多的朋友。

Only so little time is left! 才剩这么一点儿时间!

13. either/ too/ also

(1)either用作“也”时是副词,常用于否定句句尾。

She is not a Japanese, I’m not, either.她不是日本人,我也不是。

My sister doesn’t like this song, either.我妹妹也不喜欢这首歌。

(2)too常用于肯定句或疑问句尾,表示“也”。

He likes China, too.他也喜欢中国。

Are you in Grade 3, too? 你也在三年级吗?

(3)also也常用于肯定句或疑问句,但一般位于句中。

We are also students.我们也是学生。

He also went there on foot.他也是走着去的。

Did you also want to have a look? 你也想看看吗?

人教版九年级英语作文范文 第8篇

知识点撷英

1. Businessmen are afraid of newspapers and TV stations.

be afraid of sb./sth. 害怕某人或某事。

be afraid后面还可接不定式和v-ing形式,但二者之间有区别:be afraid to do表示由于主观原因不敢、害怕去做某事;be afraid of doing表示担心出现与主观良好愿望相违背的情况或不好的结果。如:

She was afraid to step further in the grass because she was afraid of being bitten by a snake.(她生怕被蛇咬着,而不敢往草丛中再走一步。)

She was afraid to wake her husband.(她不敢去叫醒她丈夫。)

She was afraid of waking her husband. (她生怕吵醒她丈夫。)

2. a year and a half

英语中表示“一个半”的方法有两种:① a/an +名词单数+and+ a half ② one+and+a half+名词复数。如“一个半小时”就有两种表达方式:an hour and a half或one and a half hours。

3. My friend said there was a car collecting rubbish outside.

collecting rubbish做car的后置定语。v-ing形式作后置定语时,通常表示被修饰词是动作的发出者且动作正在进行。如:Do you know the boy lying under the tree? lying这个动作就是前面的名词boy发出的,而且这个动作正在进行。

4. ...needs to do better in protecting the environment.

need 作实义动词时,后面可接名词、不定式和v-ing形式。如:

Everyone needs others' help.

You don't need to know.

need后接v-ing形式时,主动形式表示被动含义。如:

My shoes need repairing.

= My shoes need to be repaired.

need还可作情态动词。如:You needn't go

句型用法透视(Unit 3)

一、The +比较级,the+比较级.“越……越……。”

【考点说明】该句型使用时前半句表条件,后半句表结果。

The more we listen to the teacher, the more we understand.我们听老师讲得越多,我们懂得就越多。

The more, the better. 多多益善。

The higher, the colder.海拔越高,气温越低。

【区别于】more and more“越来越多的……”

1.修饰不可数名词

More and more waste will be produced with the development of industry.随着工业的发展,将产生越来越多的废物。

2.修饰可数名词

More and more students will realize the importance of studying English.越来越多的学生将意识到英语学习的重要性。

二、be afraid of ...“害怕……”

【考点说明】该句型使用时,后接名词、代词、动名词。

He is afraid of the dog.他怕这条狗。

Is she afraid of that dangerous river? 她害怕那条危险的河吗?

【区别于】 afraid to do不敢做某事

He's afraid to go there.他不敢去那里。

She's afraid to see him.她不敢见他。

afraid that 恐怕

Hurry up!I'm afraid that we will be late.快点,恐怕我们要迟到了。

三、It is one's duty to do sth. “做某事是某人的责任。”

【考点说明】使用该句型时,it为形式主语,不定式为真正主语。

It is my duty to help them.帮助他们是我的责任。

Is it your duty to clean the blackboard? 擦黑板是你的责任吗?

【区别于】It is one's turn to do sth.轮到某人做某事。

It is my turn to be on duty today.今天轮到我值日。

四、Don't forget to... “别忘了……。”

【考点说明】该句型为祈使句,要求对方别忘了去做某事。

Don't forget to post the letter for me when you pass by the post office.从邮局经过时别忘了帮我寄这封信。

-Don't forget to go and see her. --别忘了去看她。

-I won't. --我不会忘记。

【区别于】Please remember to do sth.请记住去做某事。

Please remember to close the door when you leave the room.离开房间时记住关门。

Did you remember to buy the dictionary for me yesterday?昨天你记得给我买那本字典了吗?

五、Wherever you live, you can ... “无论你住在哪里,你都能……。”

【考点说明】wherever引导让步状语从句,从句用一般现在时代替一般将来时。

Wherever you live, you can write a letter to me.无论你住在哪儿,都可以给我写信。

Wherever you live, you can get help from others.无论你住在哪儿,都可以得到别人的帮助。

六、If everyone makes a contribution to doing..., the world will become... “如果人人都为……做贡献,世界将会变得……。”

【考点说明】该句型中if引导条件状语从句,从句部分应用一般现在时代替一般将来时。to为介词,后接名词、代词、动名词。

If everyone makes a contribution to preventing pollution, our world will become much cleaner. 如果人人为防止污染做点贡献,我们的世界将会变得更干净。

一语天机(Unit 3)

1. waste

①作名词,可以和不定冠词连用,无复数形式。表示“浪费”或“废物”。

②作动词,表示“浪费……”、“未充分利用”。

③作形容词,表示“废弃的”、“无用的”。

2. story

①通常理解为“故事”、“小说”,但在本课中指“报道”。

②还可作“经历”、“情况”解释。

③another story 意为“另一回事”;the same story 意为“(情况)也一样”;The story goes that...表示“据说……”。

3. harm

常用作名词,表示“损害”、“危害”。一般指环境、精神方面的伤害。常见结构:do/mean/be(no, little, much)harm to...,例:Smoking does much harm to people. 吸烟对身体伤害很大。

4. improve

意思是“改善”、“提高”,可用作及物或不及物动词。如:The situation is improving. 情况正在好转。

5. around

①作介词,表示“在……附近”、“在周围”、“到处”。

②作副词,表示“到处”、“在附近”;也可表示“大约”,指数量和时间。

Unit 3 重难点解析

1.【原文】 I've been with Greener China for a year. (L. 9 ) 句中be with是“参加”的意思吗?与join有什么区别?

【精析】be with是“参加”的意思,表示状态,可与时间段连用。而join表示“参加”时,是非延续性动词,不可与时间段连用。例如:

I've been with the group for many years.我参加这个组织已经多年了。

I joined the army three years ago.我三年前就参军了。

2.【原文】“ It's a pleasant way to help keep our city clean,” said my friend. ( ) 这个句子是什么结构?to help keep...怎么理解?

【精析】这是由it作形式主语,不定式短语作真正主语的句子。这类句子由于主语较长,而用it作形式主语,把真正主语移至句末,使句子保持平衡。本句中的to help keep our city clean是真正的主语。再如:It's nice to meet you.见到你很高兴。

to help keep...意思是“有助于保持……”。keep our city clean是“keep + 宾语 + 宾语补足语”结构,作help的宾语。不定式作help的宾语常可省去to。

3.【原文】He's gone with his group to plant trees.(L. 11)plant有哪些用法?用作动词表示“种植”时,与grow相同吗?

【精析】plant可用作名词,表示“植物”,如:Plants need light and water.植物需要光和水。用作名词时,还有“工厂”的意思,常指大型工厂。如:A new power plant was built last month.上个月新建了一个发电厂。

plant用作动词,意为“种植”,可表示种植各类植物。grow也可表示“种植”,多指种植农作物类,一般不用于植树。试比较:

They plant many trees in North China.他们在中国北方种了许多树。

They grow rice in South China.他们在中国南方种植水稻。

4.【原文】 I suppose we'll go there next week. (L. 11 ) suppose与think有区别吗?

【精析】有。二者都有“认为、想”的意思,think含有推理、判断形成看法之意。suppose近似于think,但含不确切之意。在“suppose + (that) 从句”这一句式中,若主语是第一人称,其从句若为否定形式,应将否定词前移至主句,用法同think。如:I don't suppose he will come. 我猜他不会来。

5.【原文】...ask them to stop pouring dirty water into the river or the lake nearby? (L. 12) 请讲一下stop doing 与stop to do的区别。

【精析】stop后接v-ing是“停止做某事”,v-ing是stop的宾语,被停止的对象。stop 后接to do意思是“停下来去做另一件事情”,to do是目的状语。试比较:

It's time for class. Stop talking, please.该上课了,请不要说话了。

We have worked for a long time. Let's stop to have a rest.我们工作很长时间了,让我们停下来休息一会儿。

人教版九年级英语作文范文 第9篇

1.关于……人们有不同的观点。一些人认为……。

2.俗话说(常言道)……,它是我们前辈的经历,但是,即使在今天,它在许多场合仍然适用。“,however,。

3.现在,……,它们给我们的日常生活带来了许多危害。首先,……;其次,……更为糟糕的是……Today,____,which have brought a lot of harmsinourdailylife. First,____Second,____. What makes things worse is that______。

4.现在,……很普遍,许多人喜欢……,因为……,另外(而且)……Nowadays,,______。

5.相反,有一些人赞成……,他们相信……,而且,他们认为……Onthecontrary,,theysay____。

6.但是,我认为这不是解决……的好方法,比如……最糟糕的是……ButIdon”,,___。

7.……对我们国家的发展和建设是必不可少的,(也是)非常重要的。首先,……而且……,最重要的是……______“,”smore,,______。

人教版九年级英语作文范文 第10篇

第三节 化学与农业生产

教学目标:

知识与技能:

1.了解化肥的种类和特性

2.学会对铵根离子的检验

3.了解常见化肥使用的注意事项

过程和方法:

1. 培养学生实验探究能力;

2. 增强学生理论与实际相结合的能力。

情感态度与价值观:使学生认识到日常生活中处处有化学,激发学生学习化学的兴趣,增强学好化学的自信心。

重点:

1.化学肥料的种类和特性

2.铵根离子的检验

难点:

1.铵根离子的检验

2.化学肥料成分的记忆。

课前准备:

教师:以举出所知道的化肥引出课题,对常见的化肥的物理性质,让学生通过观察、看书自己总结;对铵根离子的检验的教学通过实验,激发兴趣,提出问题,让学生通过实验去探究;

学生:通过设置一定的问题让学生看书、讨论、实验探究,重点掌握化肥的种类和特性。

教学过程:

一. 化学肥料

1、氮肥

氨水 NH3•H2O 易溶于水 低温密封

碳酸氢铵 NH4HCO3

硝酸铵 NH4NO3

氯化铵 NH4Cl

硫酸铵 (NH4)2SO4

尿素 CO(NH2)2

【小结】氮元素可使植物细胞加速分裂和生长,促进植物枝叶茂盛。磷元素使植物提早开花结果,增强抵抗力。钾元素有利光合作用,促进作物生长健壮。这三种元素都是植物生长不可缺少的成分。

【结论】有刺激性气味的氨气逸出,这是快速检验铵盐的方法。

2、磷肥

它是含有磷酸根的盐。主要有磷矿粉(主要成分是磷酸钙)、钙镁磷粉(主要成分是磷酸钙和磷酸镁)、过磷酸钙(主要成分是磷酸二氢钙和硫酸钙)、重过磷酸钙(主要成分是磷酸二氢钙)

磷酸二氢铵 NH4H2PO4 磷酸氢二铵(NH4)2HPO4

3、钾肥

硫酸钾(K2SO4) 氯化钾(KCl)

碳酸钾(K2CO3)(草木灰的主要成分)

4、复合肥料

硝酸钾KNO3

磷酸二氢钾KH2PO4

5、微量元素肥料

如B、Mn、Cu、Zn等

6、农家肥料

二、农药

1、作用

2、危害

三、随堂检测题

l.氨水见光后易挥发和分解,所以容器口必须___,且放在棕色瓶中。

2.硝铵在高温或猛烈撞击时会爆炸,碳铵在受热时会全部分解成气体。尿素的含氮量,肥效持久。铵盐跟碱性物质反应,会放出___.

3.草木灰中的钾肥主要成分是______,它的水溶液呈________。

4、磷酸二氢钾是含_________元素的复合肥料,硝酸钾是含________元素的复合肥料。

5、常用的农药有哪些?说出各有哪些作用和危害。

第四节 化学与环境保护

教学目标:

知识与技能:知道水、大气污染的主要原因、主要污染物及其危害,了解防治水、大气污染的一般原则和方法。

过程和方法:认识化学在环境保护中所起的作用,一方面是通过禁止某些反应发生、控制或改变反应途径等杜绝有害物质产生,另一方面是将有害物质转化为无害物质。

情感态度与价值观:初步形成正确、合理地使用化学物质的意识,确立绿色化学观念、树立保护环境、与自然和谐相处的意识。

重点:知道水、大气污染的主要原因、主要污染物及其危害

难点:形成正确、合理地使用化学物质的意识,确立绿色化学观念、树立保护环境、与自然和谐相处的意识。

课前准备:首先安排学生对本节课的内容进行自学,在对教材中涉及的内容有所了解的基础上,要求学生对水、大气污染的主要原因、主要污染物及其危害,水、大气污染防治的一般原则和方法、与自然和谐相处三方面作深入的调查,这就需要学生通过各种途径广泛的收集资料。收集好资料以后,组织学生分组进行资料整理。根据自愿的原则将学生分为三大组,每一大组中又可分为几个小组,如第一大组研究水资源的污染及防治,其中又可分为污染源小组、危害与防治小组。每一小组选出负责人、中心发言人。有能力的小组还找到了相关的影视资料,并把它们加以整理制作成了课件,待上课交流时放映给全班同学观看。

教学过程:

引入:同学们都说得非常好。正象刚才同学们所说的,随着社会的发展,人类的生产生活已经对生态环境造成了严重的污染与破坏。但目前,仍有很多人没有意识到保护生态环境的重要性,甚至无视环境污染的危害,只重经济,不重环境。下面,我就将时间交给同学们,请大家告诉大家环境污染的危害。

一、保护生命之源――水

水是生命之源,但大自然赐予我们的水资源却十分有限。那么目前水资源的污染与保护的现状如何呢?哪些同学收集和整理了有关水 污染与保护方面的资料? 让我们请他们给大家介绍好不好?

二、大气的污染

请同学们各抒己见,发表一下对大气污染及防治的认识。

三、与自然和谐相处

只有树立绿色化学观念,大力发展绿色化学工艺,才能使人类与自然和谐相处。让学生了解绿色化学,可以培养学生的认知能力,为他们的终身学习打下基础。

责任编辑:admin