2015-2016学年高中英语人教版必修三课件：UNIT 4 PERIOD 4 USING LANGUAGE .ppt

1、Unit4 Using Language1.让学生能读懂文章的大意及细节，并能捕捉到题中的相关的细节在文中的位置。2.帮学生梳理文中的重点语言点的用法，并引导他们去运用，并进行相关的拓展。本节课是unit4 Astronomy:the science of the stars 的第二篇小课文，设计的意图主要是让引导学生对本文中的细节问题进行准确处理，除此之外，对文中的重点考点及其延伸做必要恰当的处理，做到拓展有度，拓展有据，也就是根据考纲进行补充，使这节课的英语教学不局限于课本，但又不超越大纲。首先，用和the moon 相关的图片导入，引发并激起学生的兴趣，从而自然的过度到让学生描述 the

2、 three ways in which gravity changed for LiYanping。其次，让学生listen to the text,然后填好表格，从而达到了听读结合的目的。总之，任务型阅读法教学帮学生更深层次的理解了课文。本文的语言点教学部分，有 解释，有拓展，讲练结合，实现了重点语言点的突破。spacewalkLook at the pictures!Write down the three ways in which gravity changed for Li Yanping.Reading I-scanning&skimming(2m)The way gravity

3、 changedLeft the earthIn spaceOn the moon3.It became very light.1.The gravity became very strong.2.The gravity disappeared.His weights changed three times too.Now listen to the passage and write them down.using language readingThe weight changedLeft the earthIn spaceOn the moonHe became very heavy.H

4、e had no weight and could float around like a feather.He was about one-sixth of his weight on the earth.Language points in this passage1.Last month I was lucky enough to have a chance to make a trip into space with my friend Li Yanping,an astronomer.上个月我有幸得到一个机会同我的朋友，一位宇航员李彦平一道去太空旅行。enough的用法:1）形容词作

5、定语：enough用在名词前、后都可以。I have enough time to do the work./I have time enough to do the work.我有足够的时间做此项工作。2）用作副词修饰形容词或副词表示程度:enough一般放在形容词或副词的后边。long enough,fast enough,quickly enough等。但一般不说：enough long,enough fast,enough quickly.The boy is old enough to go to school.这孩子到上学的年龄了。3）用作副词修饰动词时也需放在动词之后。The m

6、eat is not cooked enough.肉炖得不够熟。If I had _(足够长的假期),Id visit Europe,stopping at all the small interesting places.a long enough holiday2.the force force n.力量，暴力，军队vt.强制，逼迫，用力打某物come into force 开始生效；开始实施put into force 施行（法律等）force sb to do sth 迫使某人做某事force sth on sb 勉强接受某物forceful adj.有力的forced adj.强迫的

7、3.Then we were off.随后我们就启程了。be off =set off 出发；动身与off相关的短语:see.off 送行jump off 跳下give off 散发show off 炫耀get off 下车take off 脱下turn off 关闭pay off 付清；还清4.When we get closer to the moon,we shall feel its gravity pulling us but it will not be as strong a pull as the earths.get close to靠近，接近，指动态变化be close t

8、o距.近，指状态The school is close to the post office.1).“A+be+倍数+as+形容词原级+as+B”.This tree is three times as tall as that one.His father is twice as old as he.5.But when I tried to step forward I found I was carried twice as far as on the earth and fell over.2).“A+be+倍数+形容词比较级+than+B”The Yangtze River is a

9、lmost twice longer thanthe Pearl River.长江差不多比珠江长两倍。The number of students in our school is threetimes larger than that in theirs.我们学校的学生数量比他们学校的多三倍。3).“A+be+倍数+the+名词(size,length,amount)+of+B”The newly broadened square is four times the size of the previous one.新扩建的广场是未扩建时的四倍大。经过实验，这种细胞已经变得有那种细胞的三倍大

10、了1.After the experiment,this cell has become three times as large as that one.2.After the experiment,this cell has become twice larger than that one.3.After the experiment,this cell has become three times the size of that one.6.get the hang of sth.查看某物运作了解.的意义我一直想知道这部新的打字机的用法.Ive been trying to _ this new typewriter.我不十分了解你的论据的意义.I dont quite _ your argument.get the hang ofget the hang of7.We watched,amazed as fire broke out on the outside of the spaceship as the earths gravity increased.amazed 是过去分词，此处做状语用他进来的时候没有人注意到.He came in _.unnoticed