In the lab的教学教案
1.owledge: words and useful expressions
First of all, once, unless, cupboard electricity turn off, shut, by the side of, soap, taste, oil, mix, mixture, rather, finger, instead of, second (n) , on holiday, message, proper Allow, experiment, basin, finally, lively, sadly, request, Petrol, castor, vinegar, dip, suck
2. Moral Education: To get the students to do everything as carefully as they can.
To supply the students with a very harmonious atmosphere in order that they can have a successful understanding of the text and discussion.
Main Points: To let the students master and use freely some of the useful everyday English.
1. Here are some dos and donts.2. Follow the instructions.
3. What /How about when we leave?4. Make sure that ......
5. Do what he or she tells you to do.6. Please tidy the lab.
7. Could you please show me how to use the computer?
8. Dont touch anything.
1.To encourage the students to discuss and then ask them to demonstrate their ideas by using the imperative sentence structure.
2. To review and master the sentence structure of Direct and Indirect Speech.
3.once / unless / as连接的主从句
Since the dialogue and the text of this unit are about chemistry, the teacher may ask some questions about chemistry or other subjects to lead in the dialogue and then show the students the tolls that are used in the chemistry lab when the text is taught.
And also in order to make the class very lively and interesting the teacher may borrow the tubes which are filled with three kinds of liquids from the chemistry lab and ask them to guess whats in the tubes and then ask them to watch the teacher carefully then do what the teacher .
Does, which is the content of the text. In this case the students may feel very new and they may be interested in English class.
In order not to cause something dangerous to happen, the teacher may fill some white vinegar（白醋, some cooking oil(香油),some alcohol(白酒) in the tubes.
1. first of all means first. 意为首先，第一
First of all, I want to say Im very happy to be here with You.
First of all, we must make a decision.
相关的词组：at first which is opposite to at last for the first time 第一次
allow + noun.
allow sb. to do / not to do sth../sb. is allowed to do
(1) He allowed no noise here.
(2) He allowed his boy to spend the weekend with his friends.
(3) Why did you allow her to smoke here?
(4) We dont allow drinking at school.
3. once 是连词，作“ 一旦……就……”讲。
(1) Once she arrives, we can start.
(2) Once you realize it, you will study hard.
(3) Once seen, it can never be forgotten.只要见过一次就难以忘怀。
4.unless是连词，相当于if …… not ……
(1) He will not come unless his homework is finished. == He will come if his homework is finished.
(2)You will be in trouble unless you follow my instruction. == You will not in trouble if you follow my instruction.
unless 和 not …until 的区别
unless 引导从句时多强调条件，而not …… until 句型则强调时间。Unless 连接的主从句的时态一般是主句是将来时而从句现在时。not …… until 连接的主从句中可以使用多种时态。
(1) You will fail in the exam unless you listen to the teacher carefully in class.
(2) We wont start until Bob comes.
(3) He didnt find out what had happened until his wife told him about it.
5. Dont touch anything unless your teacher tells you to do.
在此句末的to后省略了touch。在英语里，有些动词像hope, like, want, try, need, 助动词如be able to., be going to之后，为了避免前后重复，往往只用一个to代表动词不定式。
(1) You can go with me if youd like to.
(2) You may stay at home if you want to.
(3) I dont want to go there, but hes going to.
6. What about when we leave?
What about ……?与How about ……?可以用来询问消息、提出建议或征询意见，其后可接名词、代词、动名词、副词（如next）和状语从句等。
(1) Im ready. What about you?
(2) What about playing football?
(3) What about todays match?
7. make sure后跟了一个省略了that 的从句。当表示“ 弄确实、使确定”意思时， 常用在祈使句中，其后的从句里要用一般现在时。当make sure 表示“认为、确信”的`意思时，其后的从句时态可视情况而定。
(1) Make sure (that ) you come early tomorrow.
(2) Make sure ( that ) your room is clean.
(3) We made sure you were not coming today.我们认为你今天一定不来了。
8.turn off 其反义词是“turn on
turn up (开大) 其反义词是turn down (关小本′文,摘自教~育资源网WWw.cHINEseJY.Com)
9.at the end of / in the end
at the end of 意为“ 在……末，在……尽头”，既可以表示时间的概念也可以表示空间的概念。而in the end只能表示时间的概念,其后不能接of短语，相当于 finally, at last.
(1) At the end of this term we will have a final examination.
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(2) He died in the end though the doctors tried their best.
(3) There is a hospital at the end of this road.
10. with表示“ 具有，带有 ”
(1) China is a country with a splendid culture and a long history.
(2) Mr. Smith is a man with two sons.
(3) I live in a house with two windows.
11.You must do everything as I do.
(1) State the facts as they are. 要如实地陈述事实。
(2) Why didnt you do as I asked?
(1) He doesnt speak as others do. ( 如、像 )
(2) He has a big nose like his father. 像）
(3) He works in the school as a teacher of Chinese.（作为）
12. instead of / instead
instead of 是介词短语。意思是“代替、而不是”。其后可以接动名词、不定式、介词短语和名词、代词。可放在句首或句尾使用。
(1) If you are busy, let me go instead of you.
(2) They went there on foot instead of by bus.
(3) This summer I went to Qingdao instead of going to Beijing.
(1) Parents should give their children more advice instead of money.
(2) He never studies. Instead, he plays all day long.
(3) The students didnt smile. Instead, each of them made a face.
13. taste/ smell/sound/look /feel 等感官动词的用法。其后必须加形容词。
(1) The flowers smell very nice.
(2) The old woman looked very worried.
(3) The cloth feels very soft.
(4) The food tastes so delicious that I cant wait any longer.
14. None of you watched carefully enough.
none为不定代词，意思是“ 没有一个人或物”。none 做主语指代可数名词时，其谓语动词单复数形式都可以，但是当它指代不可数名词时，其谓语动词为单数第三人称形式。none常与表示范围的of 介词短语连用并表示全部否定。
(1) None of them has / have got a bike.
(2) None of us is / are afraid of the ghosts.
(3) None of this money is mine.
(4) --- How many apples do you have?--- None.
none / no one 的比较
none 既可以指代人也可以指代物，强调数量，可以用来回答how many 开头的问句。而用法与意思基本相同的no one ( nobody) 只能指代人，它们不强调数量，可以用来回答who开头的问句。
(1) ---- How many people can you see in the picture? ----- None. (一个也没有 )
(2)---Who is in the classroom? ---- No one. (Nobody) （没有人）
15. enough 的用法
enough + noun./adj. / adv + enough
(1) Enough has been said on this subject.在这一点上说的已经够 多的了。
(2) Enough were sent to him. He no longer wanted to have such books.
(3) ---- Would you please have some more?---- No, thanks. Ive had enough.
(4) I am afraid we havent got enough time to do the work.
(5) Youre old enough to learn to dress yourself.
教学设计方案 Lesson 5
Step 1. Lead in
Ask the students some questions about their subjects that are learned this term, such as:
(1) How many subjects do you learn this ter
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