九年级英语上册Unit4Amaz

九年级英语上册

Unit 4 Amazing Science Topic 2 Section C

一、教学目标：

1、通过图片预测关于大量的知识，激发学生的阅读兴趣。

2、学习运用重点词汇：name…after…, tell, at a distance of…,

two-fifths as strong as, Search for…, have a good climate for

plants, a uful place to dry fruit.

3、学习重点句型：It has been two days since we landed on

Mars.

二、课前预习：

（一）音、性、义填空

Roman/ /__________，__________

god/ /__________，__________

diameter/ /__________，__________

storm/ /__________，__________

gravity/ /__________，__________

weigh/ /__________，__________

generally/ /__________，__________

journey/ /__________，__________

Cimit/ /__________，__________

excitement/ /__________，__________

（二）英汉互译

name…after…at a distance of

在夜空中be covered of

be covered with 相当于…的五分之二强度

彼此最靠近arch for…

在适合植物生长的气候 a uful place to dry fruit

a good place for human beings to live be worth sth

三、合作探究：

（一）看P93图片并预测下列对大量的描述哪些是对的（T），哪

些是错的（F）。

( )1、Mars looks like a red ball.

( )2、The temperature on Mars is very high.

( )3、Mars is much larger than the earth.

( )4、Mars is goo far away for us to reach.

（二）Mars is the fourth planet from the sun in our solar

system and is named after mars.

1、the fourth planet from the sun in our solar system意为

__________

2、name…after…以“…的名字给…取名”，其被动形式为

__________

eg：The baby __________ __________ __________ Bruce Lee(这个

婴儿的名字是以李小龙的名字取的).

（三）at a distance of相隔at a distance在远处

eg：The moon goes around the earth ____________________

380, 000 km.

eg：The police followed him ____________________.

（四）two-fifths as strong as相当于……的五分之二强度。

half as big as __________________ twice as long

as__________________

（五）So a person who weighs 90 kilos on earth weighs only

36 kilos on Mars.

weigh 90 kilos=____________________

1.65 meters tall=1.65 meters in height

（六）Scientists are still arching for more information

about Mars.

Search for____________________

arch…for…____________________

arch into____________________

eg：他们在搜寻全城找那个失踪的孩子。（译）

______________________________________________________________

（七）but the excitement of being on Mars is worth it!

be worth sth__________________ be worth

doing____________________

be worth it____________________

eg：这本字典至少值100元。（汉译英）

The dictionary ______________________________.

eg：那本小说很值得一看。（汉译英）

__________________________________________________

eg：Don’t lock the door, it isn’t ____________________(犯不

上).

四、当堂评价：

1、再读一遍1a，完成1b中的任务。

2、分小组谈论如下问题，并陈述理由。

①Does mars have a good climate for plants?

②Is Mars a uful place to dry fruit?

③Is Mars a good place for human beings to live?

④Is Mars a comfortable place for heavy people?

五、拓展提升：

（一）完成P94 Part 2的任务。

（二）根据汉语意思完成句子。

1、老师告诉我们火星的直径是地球直径的53%。

Our teacher told us the diameter of Mars is 53% __________

__________ __________ that of the earth.

2、我已经有两年没有见到Tom了，我十分想念他。

It __________ __________ two years __________ I met Tom last time.

I miss him very much.

3、这部电影非常有趣，很值得一看。

The movie is very interesting and it __________ __________

__________.

4、烧煤对空气污染十分严重，北京已经限制煤的使用。

Burning coal pollutes air a lot. Beijing has limited __________

__________ __________ __________.

六、课后检测：

完成《同步练习册》相关习题。