九年级英语unit 2作文教案【一】
虽然蜻蜓是人们所常见的昆虫，但许多人对它却并不是很了解，请你为蜻蜓写一篇《自我介绍》
九年级英语unit 2作文教案【二】
通过学习，你有什么收获？想对大家说些什么？
九年级英语unit 2作文教案【三】
一、复习引入
1、精读课文，说说课文内容。
2、从文中了解在关蜻蜓的科学知识。
二、资料搜集
1、到图书室或上网查阅蜻蜓的资料，为写作积累好素材。
2、注意：选取自己兴趣的问题进行写作，不需要写得面面俱到。
3、学生练习写作，老师指导。
三、小组内练说，全班交流。
评价要准确，有导向性。
四、指名说话，师生共评。
五、学生对自己不满意的地方进行修改，誊写。
九年级英语unit 2作文教案【四】
一、创设情境
谈话：同学们，你们喜欢天鹅吗？你了解天鹅的哪些信息呢？
出示情境图，学生观察。
谈话：你从图上了解到哪些信息？能提出什么数学问题？
学生可能提出：天鹅长大后比出生时体重增加了多少？
［设计意图]以学生感兴趣的情境引入，拉近了数学与生活的距离，调动了学生的积极性，又培养了学生的问题意识。
二、探索新知
谈话：谁能列出算式？
学生独立列式，教师板书：10.5千克-200克=
谈话：你能解决这个问题吗？在计算当中遇到了什么困难？
让学生体会到统一计量单位的必要性。
谈话：怎么改写成相同的单位呢？和小组内的同学讨论一下。
学生分小组展开讨论，教师指导。
谈话：哪个小组愿意把自己的想法和大家交流一下。
学生可能会出现两种想法；
①把千克改写成克： ② 把克改写成千克
1千克=1000克 1千克=1000克
就是把10.5扩大到它的1000倍，将小 就是把200缩小到它的 ，将小数点向左移动三位。 数点向右移动三位。
10.5千克=10500克 200克=0.2千克
10500-200=10300克 10.5-0.2=10.3千克
学生介绍自己的想法，师生予以评价。
教师总结改写方法。
［设计意图］充分利用情境图，激发学生参与学习的热情。同时引导学生独立探索，合作交流，主动获取新知，收到了良好的教学效果。适时小结，帮学生进一步理顺了单名数化单名数的方法。
三、巩固应用
1.想一想，填一填。
自主练习的第4题，让学生独立完成，然后集流，让学生说一说改写的方法。
2.比一比，填一填。
自主练习第3题，学生自己填写，同桌互相检查。
3.算一算
自主练习第6题，学生做完后说一说自己是怎么想的。
［设计意图］习题的设计，考虑到不同的学生要有不同的发展，既有层次，又有坡度。学生通过这样的练习，由浅入深地巩固新知。
四、全课小结
谈话：这节课你有什么收获？你对自己的表现满意吗？
［设计意图］培养学生的自主评价意识，在总结的同时让学生获得成功的喜悦，体现不同的人在数学上得到不同的发展。
九年级英语unit 2作文教案【五】
在你身边一定也有许多品质优秀的人，把他（她）介绍给别人吧！
九年级英语unit 2作文教案【六】
1．刚才这两个小朋友谁说得对呢？你能用两种方法说明吗？
2．18平方米＝（ ）平方分米 6米45厘米＝（ ）厘米
5千米300米＝（ ）米 3时20分＝（ ）分
2千克80克＝（ ）克 2日16时＝（ ）时
120000平方米＝（ ）公顷 7600千克＝（ ）吨（ ）千克
1070毫米＝（ ）米（ ）厘米 3004米＝（ ）千米（ ）米
4000公顷＝（ ）平方千米 678秒＝（ ）分（ ）秒
50个月＝（ ）年（ ）个月
2．比较大小．
2小时15分○215分 3米5厘米○350厘米 49千克○4090克
7米20厘米○720厘米 3吨○300千克 184时○7日10时
3．解答下面题目．
（1）4辆卡车共运了8吨400千克的货物，平均每辆卡车运多少货物？
（2）王刚从家到图书馆用了1小时10分，他行了4千米200米，他平均每分钟行了多少米？
（3）一根绳子用去了3米5厘米后，剩下的比用去的2倍多4分米，这根绳子长多少米？
九年级英语unit 2作文教案【七】
按要求改写句子知识点梳理
一、概述
按要求改写句子主要考查学生对句子结构的掌握以及用不同句型表达同一意思的能力。考查所涉及到的句子类型有一般疑问句、否定句、反意疑问句、选择疑问句、对划线部分提问、感叹句、保持原句意思、合并成一句、简单句和复合句之间的互换以及改为被动语态等。
二、解题时需注意的几个要点
1、时态：不同的时态相对应的助动词
一般现在时：谓语动词用原形（主语为第三人称单数时，动词加s或es，变否定句、疑问句时助动词为do或does）
一般过去时：谓语动词用过去式，变否定句、疑问句时助动词为did.
现在完成时：助动词have/has+动词的过去分词
过去完成时：助动词had+动词的过去分词
一般将来时：will/be going to +动词原形
过去将来时：would/was or were going to +动词原形
现在进行时：am/is/are＋动词的现在分词
过去进行时：was/were＋动词的现在分词
2、语态：主动语态变为被动语态的谓语结构
一般现在时：am/is/are＋动词的过去分词
一般过去时：was/were+动词的过去分词
一般将来时：will be+动词的过去分词
情态动词：can/may/must/need等情态动词＋be++动词的过去分词
3、改反意疑问句时注意hardly, never, seldom, few, little, no等词表达的是否定意义，变反意疑问句时用肯定形式。
4、在合并句子时，有些连词如not only…but also…, neither…nor…, either…or…是就近原则，连接两个主语时动词形式取决于与动词邻近的主语。而both…and…连接两个主语时,主语是复数。
5、简单句和复合句之间的互换常见的有：带有疑问词的宾语从句改为特殊疑问词＋to＋动词原形的不定式；结果状语从句so…that…改为enough to或too…to…的简单句。
6、保持原句意思改写句子时注意时态不变。
三、习题
练习一
1. We do our homework every evening. （改为否定句）
We _________ ________ our homework every evening. 对划线部分提问
________ ________ do they have a class meeting?
3. She could hardly understand this passage. (改为反意疑问句
She could hardly understand this passage, _________ __________?
4.The manager told him how to get useful information. (改为否定句
The manager _________ _________ him how to get useful information.
5. Tom’s sister can speak English and Japanese very well. (改为反意疑问句
Tom’s sister can speak English and Japanese very well, _________ _________?
对划线部分提问
_________ _________ he live twenty years ago?
7. Sam does some cleaning in the morning. (改为否定句
Sam _________ do _________ cleaning in the morning.
对划线部分提问
_________ _________ have the students worked on the survey?
9. Your father used to ride a bike. （改成反意问句）
Your father used to ride a bike, _______ ________? （对划线提问）
__________ ___________ the population of Germany?
11. Mr. Wang washes his car once a month. （改为一般疑问句）
Mr. Wang (对划线部分提问
will Susan come back from Athens?
13. My friends lost their way when they were traveling in Hong Kong. (改为一般疑问句
________ your friends ________ their way when they were traveling in Hong Kong?
14. 对划线部分提问
________ ________ has Yao Ming been in the Rocket Team?
15. She put the digital camera on the bed just now. (改为否定句
She _________ _________ the digital camera on the bed just now.
16. Mark's flown to Hainan Island for winter holidays. (改为反意疑问句
Mark's flown to Hainan Island for winter holidays, _________ _________?
(专辑. (划线部分提问
_________ did Super Girl Zhou Bichang _________ to Vienna?
18. I’ve already saved enough money to buy a new car. (改为否定句
I ________ saved enough money to buy a car ________.
19. Lily used to have long straight hair. (改为反意疑问句
Lily used to have long straight hair, ________ ________?
20. He has already been there .(改为一般疑问句
__________ he been there __________?
21.They decided that they wouldn't have the picnic because of the bad weather. (改为简单句
They decided __________ _________ have the picnic because of the bad
weather.
22. The English people hardly ever shake hands between the strangers .( 改为反意疑问句
The English people hardly ever shake hands between the strangers, __________ __________?
23. They grew some sunflowers in their garden last year.（改为否定句）
They __________ __________ any sunflowers in their garden last year.
24. Jane drinks milk every morning.（改为一般疑问句）
_________ Jane ___________ milk every morning? （就划线部分提问）
___________ map ___________ to Class 4?
26. You can choose only one of the two: a mini-TV or a DVD player. (改为选择疑问句
you want a mini-TV a DVD player?
27. That detective film is so amazing. （改为感叹句）
___________ ___________ amazing detective film!
28. He has some money left.（改成否定句）
He money left.
29. （划线部分提问）
do the members of the film society meet?
30. His mother knew why the little boy was unhappy all day. (改为一般疑问句
_______ his mother _______ why the boy was unhappy all day?
31. He looks very funny with that hat on. (改为感叹句
_______ _______ he looks with that hat on!. 对划线部分提问
_______ _______ they build this factory?
33. I have already finished the test paper.（改为否定句）
I ________ finished the test paper ________.
34. Johnson denied cheating in the competition.（改为反意疑问句）
Johnson denied cheating in the competition, ________ ________? （对划线部分提问） ________ ________ the story need to be funny?
36. Sam does some cleaning in the morning. (改为否定句
Sam _________ do _________ cleaning in the morning.
对划线部分提问 _________ _________ have the students worked on the survey?
38. （对划线部分提问） _________ _________ has he been a top fashion designer?
39. 对划线部分提问
________ ________ will they move into the new school?
40. to go to the People’s Square by underground. (对划线部分提问
________ _______ did it take you to go to the People’s Square by underground?
练习二：
1. Gold is less valuable than diamond. (保持句意不变
Gold is ________ ________ valuable as diamond.
2. He told the children to go and watch his tank of Ghost fish. (改为被动语态 The children ________ ________ to go and watch his tank of Ghost fish.
3. Unless I have a quiet room, I cannot do any work. （保持句意不变）
I cannot do any work ________ I _________ have a quiet room.
4. The manager arrived here a few minutes ago. （保持句意不变）
The manager has _________here ________ a few minutes.
5. They will send him to work in Japan for one year. (改为被动语态
He will ________ _________ to work in Japan for one year.
6. The words on the notice board are very small. I can’t see them clearly.(保持句子原意
The words on the notice board are small I can’t see them
clearly.
7. We can solve the problems with the help of the teacher. (改为被动语态 The problems can _________ _________ with the help of the teacher.
8. We can’t finish the work in such a short time. (保持原句意思
It’s _________ _________ us to finish the work in such a short time.
9. We must keep the noise under 50 dbs.(分贝（改成被动语态）
The noise must ________ _______ under 50 dbs here.
10. Mike doesn’t like classical music. Billy doesn’t either. （合并成一句） _________ Mike nor Billy __________ classical music.
11. The room is so dirty that we can’t live in it.（保持句意不变）
The room isn’t __________ _________ for us to live in.
12. No one knows when we will start tomorrow. （保持原句意思）
No one knows start tomorrow.
13. The Smiths will invite the professor to take part in the party. (改成被动语态 to take part in the party by the Smiths.
14. If you are not brave, you’ll lose your last chance.（保持原句意思）
you are ’ll lose your last chance.
15. They store much information in the computer. (改成被动语态
Much information ________ ________ in the computer.
16. Don’t throw rubbish here and there. Our teacher said to us. (合并为一句
Our teacher told us ________ ________ throw rubbish here and there.
17. If John doesn’t apologize for what he did, I will tell the teacher about his bad behavior.
（保持原句意思）
_______ John _______ for what he did, I will tell the teacher about his bad behavior.
18. I don't know where we can grow vegetables in the city. (改为简单句 I don't know _________ _________ grow vegetables in the city.
19. People used to enjoy themselves chatting on MSN when it worked well. (保持句意基本不变
People used to _________ a lot of _________ chatting on MSN when it worked well.
20. If you don’t improve your handwriting, you will lose marks in the exam. (合成同义句
You will lose marks in the exam ________ you ________ your handwriting.
21. To go fishing is fun. （句意不变 ）
_____ is fun _____ ______ fishing.
22. Dick was so short that he couldn’t touch the top of the bookshelf.（保持句意基本不变）
Dick wasn’t __________ __________ to reach the top of the bookshelf.
23. “Can I borrow your bike for a while or not?”（ 保持句意基本不变）
Tom asked his sister __________ he __________ borrow her bike or not for a while.
24. The couple couldn’t decide which flat they should choose at first. （保持原句意
思）
The couple couldn’t decide which flat at first.
25. Meaningless information is difficult for the little boy to remember. （保持原句意思）
is difficult for the little boy remember meaningless information.
26. People throw away millions of plastic bags in our city every day. （改成被动语态）
Millions of plastic bags away in our city.
27. She was so careless that she couldn’t find the mistakes in her test paper. (保持句意基本不变
She was _______ _______ to find the mistakes in her test paper.
28. We will hold the next Olympic Games in Beijing in 2008.（改为被动语态）
The next Olympic Games will _______ _______ in Beijing in 2008.
29. The elderly man pushed the birds into the river.（改为被动语态）
The birds ________ ________ into the river by the elderly man.
30. Dolphins are so clever that they can follow the instructions.（保持句意基本不变） Dolphins are ________ ________ to follow the instructions.
31. We can’t finish the work in such a short time. (保持原句意思
It’s _________ _________ us to finish the work in such a short time.
32. They invited the astronaut and his wife to the party on Christmas Eve.(改为被动语态
The astronaut and his wife _________ _________ to the party on Christmas Eve.
33. The little girl didn’t go to bed unless the grandmother told her a story. (保持句意基本不变
The little girl didn’t go to bed _________ the grandmother _________ tell her a story.
34. The plane is so big that it can carry 300 passengers at one time. （改为简单句）
The plane is big _________ _________ carry 300 passengers at one time.
35. Did they know the answer to the question? Ididn’t know… (合并为一句 I didn’t know ________ they had ________ the answer to the question.
Keys
练习一
1. don’t do 2. How often 3.could she 4.didn’t tell 5.can’t she
6.where did 7.doesn’t any 8.How long 9.didn’t he 10.What is
