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Unit 7
教学目标： 1. 掌握 Why—Because, Because of 的用法及区别。2. 掌握 as + 形容词 / 副词的原级 + as, not as\so + 形容词 / 副词的原级 + as 的用法及区别。3. 掌握 like （ prep ） , the same as, different from 的用法及区别。教学难点： because 与 because of ； not as\so … as 可以同形容词副词的比较级转换。
Why do we use a lot of chemicals?
Because they are so useful.
Our atmosphere is changing because we are polluting it with chemicals.
A Why and because
1 ） He was late for school yesterday, he got up late.He was late for school _________ he got up late.2) We should stop pollution because we need a clear world. ____ _____ ____ _____ pollution?
because
Why should we stop
归纳： because 是用来说明 ___________ 。常用来回答由疑问词 _____ 开头的特殊疑问句。
why原因或理由
归纳： because 后接 _____ ，是个连词。 Because of 后接 _______________.
1) Jessica was late for school today ______ the heavy rain. A. because B. because of C. why D. as 2 ） Jessica was late for school today ______ it rained heavily. A. because B. because of C. why D. as
句子 名词 / 名词短语
• Common errors 1. We took a taxi because of we
were late. 2. I did not buy it because the high
price.
of
B as…. as not as / so …..as
归纳： 1. as …….. as …….2. not as / so ………as……
1) The new swimming pool is ___ the old one . A. so big as B . as bigger as C. biger than D. as big as 2) She didn’t do her homework ___ Meimei. A. as careful as B. more careful than C. as carefully as D. as care as
和…一样和…不一样
+ 原级 + 原级
The BrownsThe BrownsThe Browns
The GreensThe GreensThe Greens
as many ……………..... as as much ………………. as … 与… .的数量一样多
+ 可数名词+ 不可数名词
1.我已经学的歌曲和他学的一样多。 I have learnt ____ _____ _____ ____
he has.2. 我女儿吃得和她姐姐一样多。 My daughter ate _____ ____ ____ ____
her sister.
as many songs as
as much food as
Common errors
• 1 History is interesting as geography.• 2 Our flat doesn’t have as
much space than yours.
• 3 My CD was as cheaper as yours.
as
as
1) A cat is smaller than a dog. = A cat ____ ____ ____ ____ a dog.2) Earth is not as cold as the moon. = Earth is ______ _______ the moon.3) He gets to school earlier than me every
day. = I _____ get to school ____ _____ ___ him.
isn’t as big as
don’t as early as
warmer than
C comparing things with like, the same as, different from
1) His new apartment ____ his old one. A. looks like B. looks the same to C. is the same to D. is the same from 2) The food in my country is quite ____ that here. It is very hot, but yours is very sweet. A. the same as B. different from C. like D. the similar to • like 某些方面相似 look like看起来像， be like 像• the same as 完全相同• different from 不同，不相像• 三者常与连系动词 be, feel, look, seem,
smell, sound, taste连用
Common errors
• 1. You look nearly the same like Jane.
• 2. That dog is completely different to ours.
as
from
different from
like
different from
the same as
different from
like
选择题：1. Michael doesn’t have as ____ money as
Jack. A. many B. much C. more D. most2. She didn’t do her homework ____
Meimei. A. so carefully as B. so carefully than C. as careful as D. more careful than3. The new swimming pool is ___ the old
one. A. so big as B. as bigger as C. big than D. as big as
4. Sally is quite ___ Lily. She is lazy, but Lily works very hard.
A. the same as B. like C. as well as D. different from5. I needn’t go to school on foot, ___ my
father drives me there. A. and B. so C. because D. or6. She wants to be a nurse ___ her mother.
A. like B. as C, to D. from7. ---____ didn’t you come to school
yesterday? ---Because I was ill. A. How B. Why C. When D. What
8. He came to school late this morning ____ his bike was broken on the way.
A. as B. because C. when D. while9.Our new school is ____ the old one. A. same as B. different as C. different from D. different than完成句子：1.因为她太忙了，所以没有去看电影。 She didn’t go to see the film ________ she
was _____ ______.2. 爸爸做家务不如妈妈多。 Father doesn’t do _____ _____ homework
_____ mother.
because too busy
as as
much
3. 这故事听起来和那个一样。 The story sounds ___ ____ ____ that one.4. 我认为艺术没有数学重要。 I don’t think art ____ _____ _____ ____
maths.5. 我们学校和他们的学校不同。 Our school ____ _____ _____ ______.6. 他长大要像他的父亲一样当一名医生。 He wants ____ ____ a doctor _____ his
father when he grows up. 7. 我们要尽可能多准备一些书。 We need _____ prepare ____ ____ books
_____ possible.
the same as
as as important is
be different from is theirs
to be like
to as many as
English Weekly Edition 21 P2 语法梳理
1. Why didn’t, take 2. because of3. B
1. not as / so tall as2. got; earlier
1. as successful as 2. as much as; as
English Weekly Edition 21 P2 语法梳理
1. the same as 2. like3. the same; different4. different from
English Weekly Edition 21 P3 Language
1. d2. b3. a4. e5. c
1. warm2. tall3. carefully4. much5. many
Notes:• as + 原级 +as• not as / so + 原
级 + as• 动词 + 副词 (-
ly)4. many + 可数名5. much+ 不可名
English Weekly Edition 21 P3 Language
1. as interesting as2. not as / so useful as3. as beautiful / pretty as4. is quite / very different from5. the same as
Edition 20 P3 专练 1. environmental
2. doing
3. to save
4. lifeless
5. to happen
6. wealthy
7. polluted
1. the answer to
2. In order to; gave up smoking
3. get / go back to
1-4 A C B D
1-5 B C A D B
Edition 20 P3 Listening Part
1-5 B C B C A
6-10 C A C B A
A.Plants
B. oil
C. clean up
D. Land
E. Divide
Aims Book P108
1. pollution
2. environmental
3. breathe
4. recently
5. wealthy
6. healthy
7. useless
8. village
9. engineer
10. neighbourhood
11. improvement
12. scientist
Aims Book P108
1. our topic is
2. the answer to
3. improve public transport
4. in order to; give up
5. get / go back to
Edition 18 P3 Listening Part
1-5 B A C B C
6-10 B A B C C
A. reporter
B. 15
C. France
D. designer
E. doctorSpeaking
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