Learning about Language课堂实录及点评

必修2 Unit Three Learning about language教学设计

【Learning Aims】

1. To master the usage of words and phrases of this unit. 2. To learn how to use them flexibly by self-directed study and cooperation. 3. To grasp the useful structure ------the present perfect passive voice. 4. To be full of passion and enjoy the pleasure of expressing yourself in English. 【自主学习】

【词汇预习】

Words: 1.calculate

(1) Oil prices are calculated in dollars.

(2)It is difficult to calculate what effect all these changes will have on the company.

(3)It has been calculated that at least ten thousand people were killed in the tsunami caused by the earthquake in Japan.

(4) David looked at the bill and made some rapid calculations.

(5)We haven’t calculated the cost of the vocation yet.

2.

solve (1)Charlie thinks money will solve all his problems. (2)There are no simple solutions to the problem of over-population. 3. signal (1) When your computer begins to run slow, it is a signal that it has been attacked by computer viruses. (2)The policeman signaled to the traffic to move forward slowly. (3)

In our class, when the bell rang and the teacher closed his book, it was a signal for everyone to stand up. 4.

simplify (1) Although I was young, I could simplify difficult sums (2)The technology has been simplified so that anyone can use it. (3)Simplify your life by shopping online. identify

beautify

purify

classify

（猜测词义，总结规律）

5.explore

(1)They decided to explore this desert region again.

(2)The experts are exploring every part of the island.

(3)We must explore all the possible ways to improve food production. 6.

arise--arose--arisen (1) Problems arose over plans to build a new supermarket here.

(2)Misunderstanding is likely to arise if people fail to communicate with each other.

自学引领：

归纳下列词、词组、例句的用法和意思。

1.calculate

2.solve

3.signal

4.simplify

5.explore

6.

arise

(3)Emotional or mental problems can arise from a physical cause. (4)They are talking about problems arising from the lack of communication. (5) if the need arises/should the need arise: We can have another meeting if the need arises.

Phrases: 1.as a result (1)

Jenny nearly missed the flight as a result of doing too much shopping. (2)

As a result of the accident, Jackson couldn’t work any longer.

(3)

We helped each other in studies and as a result, we became good friends. (4)

His carelessness resulted in his failure. =His failure resulted from his carelessness. 2.

in a way (1)Computers can use artificial intelligence to help the human race solve certain problems in a way, but they can not completely take the place of humans. (2)Over the past 20 years, the Internet has helped change our world in one way or another for the better. (3)He is on his way to becoming a doctor after having finished his four year’s study in the university. (4)In no way is she to blame. (5)Don’t stand in the way. Move aside and let me pass.

3.deal with (1)

I don’t know how to deal with these boring problems=I don’t know what to do with these boring problems. (2)

They have learned to deal with various persons. (3)

This is a book dealing with Asian problems. (4)

With the world changing fast, we have something new to deal with all by ourselves every day.

【语法预习】

语法聚焦--现在完成时态的被动语态

Look at the following sentences, paying attention to the underlined part. Over time I have been changed a lot. 请把阅读中的类似结构找出来，总结该结构的基本规律。

①

②

③

④

⑤

as a result of

in a way

deal with

根据所找例句，理解并尝试总结现在完成时的被动语态的用法

加深对该结构的理解，并把核心讲解总结如下。

【学贵有疑】

Set down words and sentences that you cannot understand in the preview. We can discuss them in class.

【合作探究】

1.First as a PC and then as a laptop, I __________ (use) in offices and homes since the 1970s. 2.Over time my memory__________ (develop) so much that, like an elephant, I never forget anything I __________ (tell). 3.--How long __________ you__________ (employ) at this job?

---Since1990. 4.I have even__________ (put) into space rockets and sent to explore the moon and Mars. 5.I have also__________ (put) into robots and used to make mobile phones as well as help with medical operations. 6.--We want to sit at the table near the window.--I’m sorry, but it__________ (take) already. 7.All the work__________ (finish) so far. 8.Great changes _____________(take place) in my hometown and a lot of factories ______________(set up) in the past thirty years.

看看自己还有什么疑难点，列下来吧。

学会思考与总结

【我的收获】