课时备课3.2

丰城初中课堂自主学习指导纲要

学习内容：Module3 Journey to space 学生姓名：班级：Unit2 We haven’t found life on other planets yet.

备课人：贾乐祥序号：2

八年级科目英语第 3 周日期：2012.9.17

【目标定向】

1. To use the title and the picture to help you understand the main idea of a passage

2. To use present perfect tense.

【教学重难点】

1）millions of数百万的; billions of数十亿的

2）go around围着转: The earth goes around the sun. 地球围着太阳转。

3）none of（三个以上事物中没有None of us has been to the zoo. 我们中没有人去过动物园。

4）be called被叫做=be named The man is called Lao Wang. 那个人被叫做老王。

【学生先学】

Ⅰ.写出下列单词

1.太阳系

2.行星

3.没有一个

4. 我们星系的一部分

5.星系

6. 围绕太阳转

7. 太阳系

8.the Milky Way 9.它们中一个也没有

10. 在宇宙中11在地球上12.恒星__________

Ⅱ根据首字母完成单词

1.He is a . No one lives with him.

2.Many p look small in space because they are far away from the earth .

3.One thousand million is a b .

4.There are the earth ,the sun ,the moon and many other stars in the u .

5. The maths problem is very difficult. It's b my ability(能力).

【新课学习】

a.快速默读文章，回答下面的问题：

（1）How long has the life been on the eart h？

（2）How many stars in our galax y？

（3）Who has discoverdd any life in space yet?

b.再次阅读文章，把下列单词按从小到大的顺序排序。

planet solar system star universe galaxy

c.小组讨论：根据课文中出现的内容，判断句子正误，并能够把错误的句子改正过来。

【点拨拓展】

1）Scientists think that there has been life on Earth for millions of years.

Thers has been早就已经有/存在了。There be 句型在现在完成时中的运用形式要注意助动词has或者have位置。

我们想在教室里早就有许多学生了。

We think there students in the classroom.

2)None of them has an environment with air.

None of them它们中一个也没有。其后的谓语动词根据需要用单数。

他们中一个也没有想乘飞船去太空的。

of them to go space by space ship.

3)The stars we see at night are the suns in other solar systems.

The stars we see at night我们在夜晚看到的星星。注意“星星”后面的成分运用。如我们在白天看到的太阳——the sun we see in the daytime

他们在操场上看到的人是我们校长。

The person in the playground is our principle.

4)It is hard to understand how large the universe is.

It’s hard to do sth.干某事很困难.（hard可以用其它的形容词代替变换成不同的意思。如It’s easy to do sth.干某事很容易。It’s exciting to do sth.干某事很令人兴奋。）

5)Scientists have sent lots of spacecraft to look at other planets in our solar system .send sb.sth.= send sth.to sb.

He has sent me lots of photos.（同义句）.

注意：当sth.和sb.是代词时，不能相互替换。只能用send sth..to sb.形式。Send it to me. Send me it（错误）

6)Have they tried to send information to us ?

try to do sth.努力做某事try not to do sth努力不要做某事

try one’s best to do sth .尽力做某事

【当堂检测】

Ⅰ. 单项选择

( )1.So far many astronauts _______ the moon.

A.visit

B. visited

C. have visited

( )2.Zhai Zhigang _______ space. He said it was very beautiful after coming back.

A.has gone to

B. have been to

C. goes to

( )3He always ____the factory before seven o’clock. A.reaches B. gets C. arrives

( )4---I can speak only _____ English now.

---You should learn more, because it is very important.

A. a little

B. a few

C. little

( )5. ---Where’s your father? --He _______ to work.

A.has gone

B. went

C. has been

【反馈评价】

Ⅱ句型转换(按括号内的要求改写下列句子，每空限填一词)。

1.We have known each other for a long time.(改为一般疑问句)

_______ you _______ each other for a long time.

2.He flew to New York.(改为现在完成时) He _______ _______ to New York.

3.They have stayed in China for 2 years.(对划线部分提问)

_______ _______ have they stayed in China?

4.He has kept the book for 3 weeks.(改为否定句)He _______ _______ the book for 3 weeks.

Ⅲ根据句意，用括号内所给单词的相应形式填空。

1.Scientists think that there has been life on Earth for _______(million) of years.

2.There are eight _______ (planet) going around the sun.

3.I have some important _______ (information) to tell you.

4.Let me _______(help) you _______(open) the window.

5.The children _______(clean) the classroom already.