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英语教案－In the lab

[06-21 12:22:18]   来源：http://www.77xue.com  高一英语教案   阅读：8812次
概要：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。比较：(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
英语教案－In the lab,标签：外研版高一英语教案,高一英语教案设计,http://www.77xue.com
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。
比较：
(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)
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.
(2) He died in the end though the doctors tried their best.


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www.77xue.com (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.
as为连词，表示方式，意思是“按照、如同”
(1) State the facts as they are. 要如实地陈述事实。
(2) Why didnt you do as I asked?
like /as的区别
like表示“ 像、如同”的意思是介词，其后不能跟从句。而as是连词，要接一个从句。as当作介词时表示“作为”。
(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.
instead是副词。试比较。
(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.

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