Learning about Language教学实录及点评

必修二Unit 3 computers language points(第三课时) [教学过程] Teaching procedures

教

学

活

动

设

计

Step I. Read the passage and find out the useful phrases 1. 经过一段时间_____________2. 许多_____________________ 3. 被认为___________________4. 从那时起_________________ 5. 后来____________________ 6. 结果______________________ 7. 与…分享_________________8. 提供某人某物_____________________ 9. 高质量的_________________10. 人类__________ 11.在二十世纪六十年代初早期__________________ Step II. Important sentences 1.

经过一段时间我已经被改变了许多。

_________________________________________________________________________ 2.我发展得很缓慢，差不多到了200年后，查尔斯巴比奇才把我制成了一台分析机。__________________________________________________________________________ __________________________________________________________________________ 3.在那时这被当作是一次技术革命，也是我人工智能的开始

__________________________________________________________________________ 4.从那时起，

我在体积和脑容量方面迅速成长。

__________________________________________________________________________ 5.随着时间的推移，

我被弄得越来越小。

__________________________________________________________________________ 6.因此,我已经完全改变了我的形状。

__________________________________________________________________________ 7.但是我总是孤孤单单的站在那里，直到20世纪60年代初期，他们才给了我一个用网络连成的家。

______________________________________________________________________________________________________________________________________________________ 8.我能够通过万维网和其他人分享我的知识。

__________________________________________________________________________ 9.不管怎样,我的目标是给人类提供高质量的生活。

__________________________________________________________________________ 10.现在我充满了幸福感，因为我是人类忠实的朋友和助手！

__________________________________________________________________________ Step III. Language points 1.

I developed very slowly and it took nearly two hundred years before I was built as an analytical machine by Charles Babbage. before 引导时间状语从句，意为“在……之前”。Before引导时间状语从句时，还可以根据语境意为

“过了多久才……; 还没来得及……就…..;”

eg. 1). They walked about 30 miles before they saw a village.

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2). Before I could get in a word, he had measured me. 【拓展】

(1). “It was +时间段+before……”

表示“过了多久才……”。从句常用一般过去时。

过了三天他才回来。_______________________________________________. (2). “It was not long before……”

表示

“不久就……”。从句常用一般过去时。

不久他在公司就升了职(get a rise)

_________________________________________________________________ (3). “It will not be long before……”

表示

“不久就会……”。从句常用一般现在时。

不久我们就会习惯新的学校生活。

_________________________________________________________________ (4). “It will be +时间段+ before……”

表示

“要过多久才……”。从句常用一般现在时。

要过五年我才能回来。_____________________________________________ Translation: 1). You can’t borrow books from the school library before you get your student card. 2). It will not be before we know the result of the experiment. 3). I’m sorry you’ve been waiting so long, but it’ll still be some time before Brian get back. 4). It was evening before we reached the small village. 2.

As time went by, I was made smaller. 1)go by =pass经过

你错过了公共汽车，它刚开走。__________________________________

(时间)逝去，过去：

______________________________________ on vacation.度假时时间过得真快。

2）These changes only become possible as my memory improved.

As I grow older, I have also grown smaller. as 此处为连词，

意为“

随着”

引导伴随状语从句，

表示主句与从句的动作同时发生。可变成with+sb/sth+doing/done

【as与with表示“伴随”的区别】

as

是从属连词，后面是一个完整的句子。

with 为介词，不能接句子，只能接名词、代词作宾语或接复合宾语，即“宾语+宾语补足语”结构。

Eg. as time went by= with time going by as my memory improved=________________________ as I grow older=________________________________ 3.

As a result, my goal is to provide humans with a life of high quality.

1).to do

在句中作表语,

eg. My task is to take care of the sick child.

他的希望就是参加奥林匹克运动会

_______________________________________________________________

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2).of high quality 是life 的后置定语,是“of+抽象名词”结构，可做定语也可做表语。

be of +(great/much/high)+n.(抽象名词) (value, importance, use, help…)=be very +adj. (_______, ___________, _______, ________...). 这枚古币很有价值。__________________________________________. 他送给了我一枚很有价值的古币。

______________________________________________________________. 他俩一般大。___________________________________________________. 3). provide sb with sth =provide sth for sb Somehow she managed to __________________________________(给她的孩子提供衣食) 学校为学生提供课本。__________________________________________________ 辨析：provide 和offer

She _____________ to help me to learn English. He ____________ me some tickets.=He _________some tickets to me. He ____________me with some tickets.=He ________ some tickets for me.

巩固练习

Ⅰ用方块内的短语或单词填空

over time

quite a lot

be considered

from then on

later on

as a result

share…with

provide … with

of high quality

anyway 1.

Since I went in NO.1 middle school, I have learnt ______________. 2.

She left in 1984 and ___________ he lived alone. 3.

I told a story, but ________ she realized what I had meant. 4.

He made one big mistake, and, _______________, lost his job. 5.

We should _________ happiness and sorrow________ each other. 6.

They produced quite a lot of goods ____________________. 7.

We are here to _______ the public ______ a service. 8.

The prize __________________ a great honour. 9.

----Can you tell me the way to the bus stop? ----Sorry, I don’t know. ----That’s all right. Thank you __________. Ⅱ改错

1.

With time went by, Einstein’s theory proved to be correct. 2.

His goal is be a doctor. 3.

As result, he found a good job. 4.

The goods is high quality.

5.

It is not rare in 1900s that people in their fifties are going to university for further education.

6.

As a result the heavy snow, he was late for school. 7. It was about half an hour after he came to life.

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翻译

1.

虽然他学习很努力，可考试还是不及格。

_______________________________________________________________________. 2.

要过三周他才会回来。

________________________________________________________________________. 3.

这部电影如此的好，以至于我想再看一遍。

________________________________________________________________________.

4.

随着时间的流逝，这座城市变得更美好。

________________________________________________________________________. 5.

这个男孩努力学习，结果他通过了考试。

__________________________________________________________________________. 6.他的妻子在1992年去世了，从那时起他独自一人生活。

_________________________________________________________________________.

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