路南区X中学八年级英语下册 Unit 2 Plant a Plant Lesson 8 Why Ar

八下Unit 2 Lesson 8 Why Are Plants Important?夯基训练一、用适当的介词填空。

1．There are some apples ____the tree. They are beautiful.
2．We can get some food ______plants.
3．___ a word, you still need to work harder.
4．You can work it out ___another way.
5．I believe ____sure he is an honest man.
二、单项选择。

( )6.It's really kind ______ you to help me clean the bedroom.
A．of B．for C．about D．on
( )7.The wine(酒) is made ______ grapes.
A．in B．of C．from D．away
( )8.At the party，Kobe Bryant said, “______ the support of my fans,
it would be hard for me to achieve such great success.”
A．With B．Under C．Through D．Without
( )9.______ teenagers are becoming the “Heads­down Tribe(低头族)”. It's ______ bad.
A．So many; much too B．So much; much too
C．Much so; too much D．So many; too much
( )10.It's important for us ______ trees.
A．plant B．to plant C．planting D．plants
三、连词成句。

11．it, live, pleasant, a warm place, to, is, in
?
12．get, we, what, from, can, plants
?
13．from, can, take, we, energy, books
________________________________．
14．our, plants, help, needs, us, fulfill, basic
___________________________________．
15．woods, people, as, used, in the past, tools
___________________________________
四、完形填空。

We can see trees everywhere in the daily life.
But do you know the importance of them?
Trees are useful in __16__ important ways. First, they provide(提供) food, wood and something else. Trees provide food not only for man,
but also for many animals. __17__ trees, lots of animals on the earth would die. It's not easy for man to __18__ on the earth, either.
Second, trees provide __19__. On a hot summer day, people are eager(渴望的) to have a rest under the shade of a tree after walking a __20__ way. You can't imagine __21__important the shade of a tree is to man and animals.
Third, trees help to prevent(阻止) the dust storm. The best way to __22__ the wind from blowing away soil is to plant more trees. __23__， in many parts of the world, people haven't realized it __24__. They cut down trees in large numbers.
__25__， they will find that they have lost their best friends.
( )16.A.one B．two C．three D．four
( )17.A.With B．Without C．For D．As
( )18.A.save B．cross C．live D．lose
( )19.A.food B．drinks C．money D．shade
( )20.A.long B．deep C．high D．large
( )21.A.when B．what C．how D．why
( )22.A.choose B．stop C．spend D．advise
( )23.A.Since B．So C．Or D．However
( )24.A.already B．Neither C．yet D．too
( )25.A.In the end B．In the end of C．By the end D．To the end
五、词语运用。

Danny, Jenny and Brian are walking in the forest. It is 26.__________ to walk in the forest. There are so many trees and 27. (plant). They are important. They help make the air clean 28._____ fresh.
When the weather is 29. (sun) and hot, people can sit in the shade under a tree. People use trees and other plants in many 30. (way). The trees and plants take energy 31._____ the sun and turn it 32.____ food. Medicine and clothing are also 33. (make) from trees and plants. The forest is important to animals. And plants 34.______ the soil and stop the dust. Plants also make everything 35. (look) beautiful.
答案：
1-5 on from In in for 6-10 A C D A B
11.Is it pleasant to live in a warm place?
12.What can we get from plants?
13.Plants help us fulfill our basic needs.
14.We can take energy from books.
15.People used woods as tools in the past/ In the past people used woods as tools. 16-20 C B C D A 21-25 C B D C A
26-30.pleasant plants and sunny ways from into made cover look
Section B第5课时（3a～Self Check）
类别学习重点
重点单词dentist, magazine, however, than, almost, less, point
重点短语
go to the dentist, not…at all, more than, less than
重点句式1. She never goes to the dentist for teeth cleaning.
2. She always watches TV for more than two hours a day.
3. However, she has some bad habits, too.
课前预习写一写
1.牙科医生dentist
2.杂志；期刊magazine
3.然而；不过however
4.（用以引出比较的第二部分）比than
5.几乎；差不多almost
6.没有一个；毫无none
7.较少；较小less 8.得分；点point
译一译
1.多于more than
2.少于less than
3.看牙医go to the dentist
4.一点也不not…at all
背一背
1.然而，她也有一些坏习惯。

However, she has some bad habits, too.
2.她看电视总是超过两小时。

She always watches TV for more than two hours.
新课导
入T：How often do you watch TV? S：Every day.
T：How often do you exercise?
S：Once a week.
T：How often do you read books? S：Three times a week.…
新课展
示【完成教材3a~Self Check的教学任务】
1.根据3a中的数字用表示频率的单词或词组完成报告，校对答案并朗读3a。

2.根据自己的信息完成3b的表格，注意用always, every day, twice a week, never, usually等词来填写最后一栏。

3.写一篇关于你的好习惯和坏习惯的报告，然后学生相互交流纠正错误。

教师抽查点评，完成3c。

4.完成第4部分选择题。

5.完成Self Check的任务并点评。

语法提要】
1.however
however用于谈及一个既成事实时，表示转折，意为“可是、然而”。

可放在句首、句中或句末，常用逗号与句子其他成分隔开。

如：
My room is small,however,it 's comfortable.我的房间很小，但却很舒服。

2.more than
more than意为“超过，多于”，相当于over，与数词连用。

如：
There are more than 70 students in this class.这个班上有70多名学生。

3.almost
almost意为“几乎，差不多”。

用来修饰不定代词、形容词、副词、动词、介词短语等,可用于 any 以及 no, none, nobody, nothing, never 等表示否定的词之前；有时 almost 可表示十分相似(但又不完全相同)。

如：He is almost two meters tall.他差不多有两米高。

【问题探究】
1. The best way to relax(relax) is by watching(watch) TV.
2. Five percent of the students sleep (sleep) less (little) than 8 hours.
3.比尔几乎每天吃新鲜的蔬菜和水果。

（汉译英）
Bill eats fresh vegetables and fruit almost every day.
活学活练（C）1.I don’t like the boring television _____ .
A.at least
B.at most
C.at all
D.at last
(B)2. I like music ,I can’t spend much time _____it.
A. but, on
B. however, on
C. but, in
D. however, in
（C）3.His mother is ____ fifty years old. ____, she looks very young.
A. more than ;But
B. less than; But
C. more than; However
D. less than; However
布置作业：教师引导学生课后完成本课时对应练习，并预习下一课时内容。

教学反思本课时的阅读和写作内容的学习有一定难度，因此教师应带领学生多阅读、多看示范文，培养学生良好的读写习惯。

教学过程中老师的疑问：
教师点评和总结：
Unit7 What’sthehighestmountainintheworld?
Period3 SectionAGrammarFocus—4c
【课型】语法课
学习目标
1.能掌握下列单词:ocean,the Pacific Ocean
2.能正确使用以下常用表达:
how high,longer than,the deepest salt lake,as popular as,the Yangtze River
3.能熟练掌握并使用下列重点句式:
1)—How high is Qomolangma?
—It’s 8,844.43 meters high.
2)—Did you know that China is one of the oldest countries in the world?
—Yes,I did.It’s much older than the US.
3)—Which is the deepest salt lake in the world?
—The Caspian Sea.
学习过程
【课前预习】
用括号内所给单词的适当形式填空。

1.Bob is (young) than Fred but (tall)than Kimi.
2.Miss Chen is (popular) than Mr.Wang.
3.I think apples are as (delicious) as bananas.
4.In the test,I did even (bad).
5.A dictionary is much (expensive) than a story book.
6.Playing computer games is (interesting) of all.
【课堂探究】
探究:形容词比较级和最高级的用法总结
(1)形容词比较级的句型结构
①形容词的+than+比较对象。

表示一个范围内两事物的比较用“比较级+than++单数名词”。

He is taller than any other student in his class.他比他班上任何一个学生的个子都高。

②as...as...意为“”,其否定形式为“not so/as...as...”,意为“不及;不与……一样……”。

注意as与as之间要用形容词或副词的级。

③“the+比较级...,the+比较级...表示“”。

The more you read,the more you know.你书读得越多,你知道得就越多。

④“比较级+and+比较级”表示“”。

Our city is more and more beautiful.
我们的城市越来越漂亮了。

⑤修饰比较级可用等。

⑥在选择疑问句中,常用句型:
Which/When/Who+be+形容词比较级,A or B?
(2)形容词最高级的句型结构
①“主语+be+the+形容词+in/of+范围”表示“在某范围内最……”。

②“+the+形容词最高级+可数名词复数”表示“最……的……之一”。

③“the+(除了first)+形容词最高级+可数名词单数”表示“第几(大,长等)……”。

The Yellow River is the second longest river in China.
黄河是中国的第二长河。

④选择疑问句中,常用句型:Which/Who...the+形容词最高级,A,B or C?
注意:形容词最高级前通常要加。

但前面若有物主代词、指示代词或名词所有格等修饰时,不能用定冠词the。

【课堂练习】
一、用所给单词的适当形式填空。

1.They all jumped with (excite)when they heard the good news.
2.The man didn’t go to work because o f his (ill).
3.(drink) milk is good for us.
4.Now most pandas live in the (remain) forests.
5.Now many people start to (cut) down the forests.
二、单项选择。

1.—How can I get on well with my classmates?
—Try to be friendly to them.That will make it much .
A.easily
B.more easily
C.easy
D.easier
2.—Which city is your favorite?
—Hangzhou.It’s the place that I want to visit.
A.worse
B.worst
C.better
D.best
3.Which sport do you like ,swimming,running or shooting?
A.well
B.better
C.best
D.good
4.The actress is already 50,but she looks than she really is.
A.young
B.more young
C.more younger
D.much younger
5.—Which city has population,Shanghai,Hong Kong or Qingdao?
—Shanghai,I think.
A.the smallest
B.the least
C.the most
D.the largest
6.I study English as as my brother.
A.hard
B.harder
C.hardest
D.the hardest
7.The Yellow River is one of rivers in China.
A.long
B.longer
C.the longest
D.longest
8.Now air in our town is than it used to be.We must stop it.
A.very good
B.much better
C.rather than
D.even worse
9.China has a larger population than in the world.
A.all the countries
B.every country
C.any country
D.any other country
10.The sick boy is getting day by day.
A.worse
B.bad
C.badly
D.worst
【自我反思】
1.我的收获:
2.我的易错点:
参考答案
课前预习
1.younger;taller
2.more popular
3.delicious
4.worse
5.more expensive
6.the most interesting
课堂探究
探究:(1)①比较级;any other ②与……一样;原
③越……,越……④越来越……⑤much,a little,even,still,a lot
(2)①最高级②one of ③序数词④定冠词the
课堂练习
一、1.excitement 2.illness 3.Drinking
4.remaining
5.cut
二、1~5.DDCDD 6~10.ACDDA。