Learning about Language教学内容

高二人教新课标版选修八

Unit 5 Meeting your ancestors Learning about Language教学设计

教学步骤：

Step1 Check the answer Discovering useful words and expressions（幻灯片2-10页）

Step2 Discovering

useful structures Objective：To revise the usage of present perfect continuous tense and use it properly.

(语法讲解本课件里展示了两种方法：归纳法和探究法，13-15页/16-28页，要尽可能多的呈现一些相关例句，或可让学生从已学课文中找相应例句，引导学生试着从所观察到的语言现象中总结出语言规则和语法规律。) 第一种方法：Look at the following sentences. 1.I’ve been waiting for you for a long time! (必修3) 2. Recently, however, scientists have been finding that long-term use of

these fertilizers can cause damage to

the land and, even more dangerous, to people’s health. (必修4) 3. We have just moved into a new house and I have been working hard all morning. I have been trying to get my new room in order. (新概念2 L52) 4. Since then, they have been trying to find out how the fire began. (新概念2

L53) 5. The whole village has been working day and night gathering and threshing this year’s crop before the

September rains. (新概念2 L76) Sentences from this unit: 1.We’ve been excavating here for many years and …

2. We have been excavating layers of ash almost six metres thick, …

3. Well, we’ve been finding the bones of tigers and bears in the caves, and we think these were their most dangerous enemies. （以上我们已经通过归纳总结对本课的语法内容有了一定的了解，下面就让我们根据之前练习的考察情况进一步选择讲解该语法项的重难点。）

第二种方法：

图片倒入不同例句（15-28页幻灯片），有助于同学们更加直观的理解。

课堂要点精析

现在完成进行时

现在完成进行时表示动作从过去某一时间一直延续到现在或离现在不远的时间。其动作是否延续下去, 则由上下文而定。现在完成进行时多用持续性动词如live, learn, lie, stay, wait, stand, rest, study等, 常和all the time, this week, this month, all night, all the morning, recently 等状语以及

since 和

for引导的时间状语或从句连用。

1.

构成形式: 2. 用法

1) 叙述某一动作从过去开始一直继续到现在仍在继续之中或刚刚停止。经常与for, since, all morning/day/week用在一起。

You have been studying for four straight hours.

Why don’t you take a break? The telephone has been ringing for almost

a minute. Why doesn’t someone answer it?

2)

叙述“最近”一直从事的工作或活动。lately, recently What’s the matter? Your eyes are red and puffy. Have you been crying? 你是不是一直在哭? 3)

表示重复动作。有时现在完成进行时所

表示的动作并不是在一直不停地进行, 而是在断断续续地重复。

I have been knocking. I don’t think anybody’s

in.

我一直在敲门, 我想没人在里面。

You’ve been saying you can succeed for five years.

5 年来你一直在说你能成功。

I have been writing letters since breakfast.我从早餐起就一直在写信。

4) 表示“刚才、近来”发生的动作, 一般不再继续。此时一般通过上下文的语境进行判断。

My hands are dirty. I’ve been painting the door. 我的手很脏, 我一直在漆门。

What have you been eating to get as fat as this? 你都吃什么啦, 怎么这么胖？

5) 叙述从过去某时开始一直继续到现在, 但不再继续下去的事情。带有浓厚的感情色彩, 强调持续了“那么久”或做得“那么辛苦”。

I have been wanting to meet you for a

long time.

和你见面是我盼望已久的事了。

Too much has been happening today.今天真是一个多事的日子。

Oh, you have come at last! I have been waiting for you for two long hours.

You are here! I have been looking for you long.我找了你老半天。

现在完成进行时与现在完成时的区别

现在完成时表示结果, 其动作发生在过去但对现在有影响; 而且现在完成时也可表示动作的持续。而现在完成时表示比较长久的动作和状态, 而现在完成进行时表示较短暂的动作和状态, 而且强调持续性或未暂停性。

He hasn’t worked for years.他多年来一直没有工作。

I haven’t been working very well recently.我最近工作不太顺利。

They have built several bridges so far.

到目前为止，他们已建了好几座桥。

They have been building bridges so far. 到目前为止，他们一直在建桥。

Step3Practice

Answer key for exercise 2，3 on page 41 (幻灯片37-46页) Step4 Individual activity（此部分也可作为课下练习）

I.

China sent up Shenzhou V manned

spaceship into space successfully, which

shows science and technology ________

rapidly in China.

A. have been developing

B. develops

C. is developing

D. had developed 2. Mrs. White became a teacher in 1985. She

______ for twenty years by next summer.

A. will teach

B. would have taught

C. has been teaching

D. will have been teaching 3. --Hi, Tracy, you look tired.

--I am tired. I _________ the living room all day.

A. painted

B. had painted

C. have been painting

D. have painted 4. The two friends ________ on the Internet

for three hours, and they would go on till

the next morning.

A. had been chatting

B. had chatted

C. were chatting

D. have been chatting 5. Now that she is out of a job, Lucy ________ going back to school, but she hasn’t decided yet.

A. had considered

B. has been considering

C. Considered

D. is going to consider

6. ----How long _________ in the factory?

----Since 1990.

A. were you working

B. have you been working

C. had you been working

D. will you work 7. The first use of atomic weapons was in 1945, and their power _______ increased

enormously ever since.

A. is

B. was

C. has been

D. had been 8. ----Hi, Alan, I have’t seen you for weeks.

What _________ recently?

----Studying.

A. have you been doing

B. have you done

C. were you doing

D. did you do 9. ----Hi! We have not seen each other for

almost two years.

----I _______ in a company as a secretary.

A. had worked

B. have worked

C. worked

D. have been working 10.I _______ letters this morning and _____ for four hours so far.

A. will write; wrote

B. have written; have written

C. was writing; wrote

D. have been writing; have written 11. —

I have got a headache.

—

No wonder. You ______ in front of

that computer too long.

A. work

B. are working

C. have been working

D. worked 12. Cathy is taking notes of the grammatical

rules in class at Sunshine School, where she _____ English for a year.

A. studies

B. studied

C. is studying

D. has been studying

Step5 Homework 1.Learn useful words and expressions

by heart and practice them. 2. Finish Ex. 1 and 2 on pages 80.