(共30张PPT)
第7课时 八年级上册 Unit 1~ Unit 2
精讲 精练
一、Did you do anything special last month？上个月你做了特别的事吗？
something意为“某事，某物”，常用在肯定句中；用在疑问句中表示请求、客气的询问。
anything意为“某事，某物，任何事”，一般用在否定句、疑问句和条件句中；有时可用在肯定句中，意为“无论何事，任何事”。
nothing意为“没有任何东西”，nothing...but除……之外，什么也没有；只有。
everything意为“所有东西，一切，每件事”。
注：当形容词修饰这四个不定代词时，须后置。
例：I bought something for my parents，but nothing for myself.
我买了些东西给父母做礼物，但没买东西给自己。
It was my first time to go there，so everything was really interesting.
这是我第一次去那里，因此那儿的一切(对我来说)都很有趣。
Don't cheat me，I know anything.
别骗我，我知道任何事。
Would you like something to drink
你想要一些喝的吗？
【同步练习】
1．There is _____________ wrong with my back and it hurts seriously.
2．When our teacher heard of the news，he was too angry to say _________．
3．—Wow，so many new buildings！But it used to be a poor village.
—Yes，___________ has changed in our hometown.
4．—Smoking brings me a lot of ideas.
—Stop that！After all，_________ is more important than health.
5．—Is there _________________(特殊的事)in today's newspaper
—Yes.A terrible accident happened in Hubei.
something
anything
everything
nothing
anything special
二、decide
decide动词，意为“决定”。常用的短语和句型为：
decide on sth.就某事而定
decide(not)to do sth.决定(不)做某事
decide＋“特殊疑问词＋动词不定式”
decision名词，意为“决定”。
make a decision做决定
例：We decided on spending the vacation by the sea.
我们决定在海边度假。
He decided to go to France for his holiday.
他决定到法国去度假。
I can't decide what to wear.
我决定不了穿什么。
【同步练习】
1．他们决定周末不去海滩。
They _______________ go to the beach on weekends.
2．在你生气的时候，请不要做任何决定。
Please don't _________________ when you are angry.
三、another two hours
“another＋数词＋名词复数”意为“再，又，还”，相当于“数词＋more＋名词复数”，常指在原有基础上添加。
例：There is room for another three people in the back of the bus.
＝There is room for three more people in the back of the bus.
公共汽车后面还能坐下三个人。
decided not to
make any decision
【同步练习】
—Have you finished today's work
—No，I need fifteen ________________．/No，I need another _________________． (再15分钟)
四、辨析how often/how long/how soon/how far
how often意为“多久一次”，答语通常是always，usually，often，sometimes，once/twice a day/month等表示频率的副词或短语。
how long意为“多长时间”，答语通常是(for)three days/weeks/months等时间段。
how soon意为“多久以后”，常用在一般将来时态的句子中，其答语通常是“in＋一段时间”。
more minutes
fifteen minutes
how far意为“多远”，答语通常是表示距离的短语。
例：—How often do you go to the movies
—你多久看一次电影？
—I go to the movies maybe once a month.
—我大概一个月去看一次电影。
—How long do you practice English every day
—你每天练习多长时间英语？
—About an hour.
—大约一个小时。
—How soon will you come back
—你多久后回来？
—In two days.
—两天后。
—How far is the cinema
—电影院多远？
—About two kilometers.
—大约两公里。
【同步练习】
1．—_________ are the Olympic Games held
—Every four years.
2．—_________ will your father be back
—In five days.
3．—___________ is it from your home to school
—5 minutes' walk.
4．—__________ have you worked in this company
—Since three years ago.
How often
How soon
How far
How long
五、辨析sometimes，some times，sometime，some time
sometimes＝at times为频率副词，意为“有时”，表动作发生的不经常性。
some times意为“几次；几倍”，time此处为可数名词，意为“次数；倍数”。
sometime为副词，表“在某时；有朝一日”，指将来或过去的一个不确定时间。
some time指“一段时间”，time此处为不可数名词，意为“时间”。
口诀：有s是有时，有时分开好几次；无s是某时，某时分开是一段。
例：Sometimes he goes to the cinema on Sunday.
星期天他有时去看电影。
He has been to Beijing for some times before.
他以前去过北京几次。
We will take our holiday sometime in August.
我们将在八月的某个时间度假。
I spend some time practicing speaking English every day.
我每天花一些时间练习说英语。
【同步练习】
1．The foreign friends will come to our school ___________ next week.
2．We have known each other for ___________．
3．Usually I come by car，but __________ I come by train.
4．I am sure that we have met _____________ before.
sometime
some time
sometimes
some times
六、辨析maybe，may be
maybe是副词，意为“可能”，常位于句首，相当于另一副词perhaps。
may be是“情态动词may＋be”构成的谓语部分，意为“也许是；可能是”。
例：Maybe he is not very healthy.
可能他不是很健康。
The book may be Peter's.
这本书也许是彼得的。
【同步练习】
1．_________ she knows the answer，but I'm not sure.
2．The girl _________ Mr.Brown's student.He knows her well.
Maybe
may be
七、辨析little，a little，few，a few
little作形容词时，修饰不可数名词，意为“少量；几乎没有”，表否定意义。
a little意为“一点儿”，修饰不可数名词，表肯定意义。
few意为“没几个；几乎不；几乎没”，表示否定，修饰可数名词。
a few意为“少许；少数”，修饰可数名词复数，表肯定意义。
【同步练习】
1．Now teenagers are very busy with their schoolwork and they have ______ time to do exercise.
2．He can speak _________ English，so he can talk to foreigners sometimes.
3．______ eggs are left，so we have to buy some.
a little
Few
little
八、辨析try to do sth.，try doing sth.
try to do sth.意为“尽力做……；试图做……；设法做……”。
try doing sth.则意为“试着做……”。
【同步练习】
1．I worked hard and tried _________(make)progress.
2．She tried __________(open)the door by pushing it，but she failed.
to make
opening
一、词汇拓展(看PPT自主校对)
1．few(adj.)→_______(比较级)→________(最高级)
2．bored(adj.)→________(adj.)令人感到厌倦的
3．decide(v.)→________(n.)
4．building(n.)→_______(v.)
5．hungry(adj.)→_________(n.)
6．all(pron.)→_______(反义词)
7．one(num.)→______(adv.)第一次
8．two(num.)→________(adv.)第二次
9．full(adj.)→_______(adj.反义词)
fewest
fewer
boring
decision
build
hunger
none
first
second
empty
10．little(adj.&adv.)→_______(比较级)→________(最高级)
11．health(n.)→_________(adj.)→__________(adj.反义词)
12．die(v.)→_______(adj.)→_______(n.)
13．always(adv.)→_______(反义词)
14．I(pron.)→________(反身代词)
15．you(pron.)→___________________(反身代词)
16．many(adj.)→________(最高级)
17．wonder(n.)→__________(形容词)
18．different(adj.)→________(反义词)
19．bottom(n.)→_______(反义词)
20．above(prep.)→________(反义词)
less
least
healthy
unhealthy
dead
death
never
myself
yourselves/yourself
most
wonderful
same
top
below
二、单词拼写(看PPT自主校对)
1．As a reporter I worked for both a ____________ and a newspaper.
2．Steve was _______ late for school.This morning he came in the classroom just when the bell rang.
3．_______ he will come here，but I am not quite sure.
4．I feel a bit tired. __________，I can't go to sleep.
5．After hours' climbing，we got to the _____ of the mountain.
6．It has rained for many days and everything got ____．
7．This is without doubt the best TV _________ I have ever seen.I like it very much.
8．To keep in good _______，you should not eat too much junk food.
magazine
always
Maybe
However
top
wet
program
health
9．It ______ that he will fall down.
10．They provide the _________ people with food.
11．Some big stones are _______ the water surface.We can't see them，but they are dangerous for ships.
12．How heavily it is raining！I think we should _____ until the rain stops.
13．_______ students are for the plan.Only several students are against it.
14．If I had a lot of money，I would travel __________ in the world.
15．This is a ____________ movie.It's very popular among young people.
16．After seeing so many bikes，she can't ________ which to buy.
seems
hungry
below
wait
Most
anywhere
wonderful
decide
17．There are a lot of ______ in the forest.They are singing.
18．I live in that tall ________．My room is on the 30th floor.
19．We will climb the ______ this Sunday and go camping in it.
20．His father is a market _______．He sells clothes.
21．If you work hard，you will make a ___________ in the future.
22．Whenever we see _________ in trouble，we should offer to help him or her.
23．__________ can be learned without hard work.
24．He ______ to sleep but he couldn't，because it was very noisy outside.
25．We usually think that the dog is clever while the _____ is stupid.
birds
building
hill
trader
difference
someone
Nothing
tried
pig
三、用所给词的适当形式填空(看PPT自主校对)
1．What do you feel like _________(do)today
2．I don't think ________(someone)would agree with you.
3．He worked hardest but was paid the _______(little)．
4．They decided ________(go)to the movies this Sunday.
5．Rex goes swimming ________(two)a week.
6．There are many kinds of ___________(activity)in our school.
7．_________(anything)is impossible if you try your best.
8．Can you tell the _____________(different)between the two pictures
9．He knows even ________(few)stories about the man than I do.
10．He is always the _______(one)to get to office every morning.
doing
anyone
least
to go
twice
activities
Nothing
differences
fewer
first
11．Many people like dogs.But I _________(like)them.
12．I feel a little tired.I need a cup of tea to relax ________(I)．
13．It's an ___________(enjoy)experience to work with Sam.He is always so kind.
14．A lot of tall __________(build)have been put up in our city in the past few years.
15．A _______(trade)makes money by his business.
16．There's ___________(anything)wrong with my computer.It doesn't work now.
17．The singer is famous for his ___________(wonder)voice.
18．Once you make a ________(decide)，you'd better not change your mind.
19．—I don't like the ________(bore)trip，Mary.What about you
—I'm also _______(bore)with it.
dislike
myself
enjoyable
buildings
trader
something
wonderful
decision
boring
bored
A small gray box sits on the dresser in my bedroom.Inside is a collection of the most meaningful and __1__ letters I have ever received.They're from my father，who was diagnosed(诊断)with a rare form of cancer in 1997，and __2__ about a year later.The letters __3__ the hole that was caused by my dad's death inside me.
In that year，my father somehow found the strength to sit down，pen in hand，and pass his boring memories and words of wisdom(智慧)on to my two sisters and me.
四、完形填空(精讲分析)
He __4__ about 25 letters in total—some of them addressed to all three of us，and others to each of us individually(分别地)．My mom held on to them until we were ready to __5__ them.Sometimes my dad wrote about __6__ moments.But he also brought up important issues(问题)．On the topic of drugs he wrote，“You don't have to do drugs(碰毒品)to make other girls accept you.People will appreciate you for who you are，for total you，not because you do drugs.A person becomes cool and interesting not __7__ drugs but by developing his personality.Then he is the person people __8__ to be around in the long run.” And his advice about college and jobs is particularly(尤其)__9__ to me now，at the age of 21.
Seventeen __10__ has passed since my dad died and we have grown so much since then.McKenzie and I are in college，and Ali has __11__ high school.Soon I'll __12__ my first job.My dad hasn't been here，physically，at least，to give us a high five，a hug or a lecture when necessary，__13__ we all feel his presence(存在)because we have his __14__．And his words guide and __15__ us.
( )1. A．hopeful B．peaceful
C．comfortable D．valuable
( )2.A.understood B．retired
C．died D．worked
( )3.A.explore B．form
C．fill D．open
( )4.A.downloaded B．improved
C．wrote D．checked
( )5.A.read B．give
C．burn D．find
D
C
A
C
C
( )6.A.strange B．simple
C．old D．difficult
( )7.A.joining in B．packing up
C．breaking down D．depending on
( )8.A.beg B．refuse
C．want D．hate
( )9.A.normal B．helpful
C．new D．useless
( )10.A.years B．months
C．weeks D．hours
B
D
C
B
A
( )11.A.avoided B．organized
C．entered D．quit
( )12.A.make up B．set up
C．set down D．look for
( )13.A.once B．but
C．if D．so
( )14.A.pens B．looks
C．dreams D．letters
( )15.A.encourage B．surprise
C．attract D．award
C
D
B
D
A
There are many kinds of pollution now.Light pollution is one 1._____ them.Do you know the 2._______(way)to reduce(减少)it
First of all，you can decide 3._________ you're going to deal with it or not.Each of us can do something useful to stop light pollution in our own ways.
Secondly，make 4.______ that your outdoor lights are on only when you need them.It means that they're only on when there is an activity in the area.
五、语法填空(精讲分析)
of
ways
whether
sure
5．__________(three)，reduce the wattage(瓦数)of your lights as much as you can.We need light to play，work or do other things.6.______ it doesn't mean that we should have very strong light.Too much light can be very bad for our eyes.
Light pollution is the result of 7.________(waste)energy.It's useless to provide light where it isn't 8._________(need)．Poorly designed lighting 9.________ (cause)much light pollution.
Even a small change in wattage will reduce light pollution.You might be 10.___________(surprise)at how well you can see at night with reduced wattage.Try it out and see how it works.
Thirdly
But
wasting
needed
causes
surprised中小学教育资源及组卷应用平台
第7课时 八年级上册 Unit 1~Unit 2
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一、Did you do anything special last month？上个月你做了特别的事吗？
something意为“某事，某物”，常用在肯定句中；用在疑问句中表示请求、客气的询问。
anything意为“某事，某物，任何事”，一般用在否定句、疑问句和条件句中；有时可用在肯定句中，意为“无论何事，任何事”。
nothing意为“没有任何东西”，nothing...but除……之外，什么也没有；只有。
everything意为“所有东西，一切，每件事”。
注：当形容词修饰这四个不定代词时，须后置。
例：I bought something for my parents，but nothing for myself.
我买了些东西给父母做礼物，但没买东西给自己。
It was my first time to go there，so everything was really interesting.
这是我第一次去那里，因此那儿的一切(对我来说)都很有趣。
Don't cheat me，I know anything.
别骗我，我知道任何事。
Would you like something to drink
你想要一些喝的吗？
【同步练习】
1．There is ________ wrong with my back and it hurts seriously.
2．When our teacher heard of the news，he was too angry to say ________．
3．—Wow，so many new buildings！But it used to be a poor village.
—Yes，________ has changed in our hometown.
4．—Smoking brings me a lot of ideas.
—Stop that！After all，________ is more important than health.
5．—Is there ____________(特殊的事)in today's newspaper
—Yes.A terrible accident happened in Hubei.
二、decide
decide动词，意为“决定”。常用的短语和句型为：
decide on sth.就某事而定
decide(not)to do sth.决定(不)做某事
decide＋“特殊疑问词＋动词不定式”
decision名词，意为“决定”。
make a decision做决定
例：We decided on spending the vacation by the sea.
我们决定在海边度假。
He decided to go to France for his holiday.
他决定到法国去度假。
I can't decide what to wear.
我决定不了穿什么。
【同步练习】
1．他们决定周末不去海滩。
They ____________ go to the beach on weekends.
2．在你生气的时候，请不要做任何决定。
Please don't ____________ when you are angry.
三、another two hours
“another＋数词＋名词复数”意为“再，又，还”，相当于“数词＋more＋名词复数”，常指在原有基础上添加。
例：There is room for another three people in the back of the bus.
＝There is room for three more people in the back of the bus.
公共汽车后面还能坐下三个人。
【同步练习】
—Have you finished today's work
—No，I need fifteen ____________．/No，I need another ____________．(再15分钟)
四、辨析how often/how long/how soon/how far
how often意为“多久一次”，答语通常是always，usually，often，sometimes，once/twice a day/month等表示频率的副词或短语。
how long意为“多长时间”，答语通常是(for)three days/weeks/months等时间段。
how soon意为“多久以后”，常用在一般将来时态的句子中，其答语通常是“in＋一段时间”。
how far意为“多远”，答语通常是表示距离的短语。
例：—How often do you go to the movies
—你多久看一次电影？
—I go to the movies maybe once a month.
—我大概一个月去看一次电影。
—How long do you practice English every day
—你每天练习多长时间英语？
—About an hour.
—大约一个小时。
—How soon will you come back
—你多久后回来？
—In two days.
—两天后。
—How far is the cinema
—电影院多远？
—About two kilometers.
—大约两公里。
【同步练习】
1．—____________ are the Olympic Games held
—Every four years.
2．—____________will your father be back
—In five days.
3．—____________is it from your home to school
—5 minutes' walk.
4．—____________ have you worked in this company
—Since three years ago.
五、辨析sometimes，some times，sometime，some time
sometimes＝at times为频率副词，意为“有时”，表动作发生的不经常性。
some times意为“几次；几倍”，time此处为可数名词，意为“次数；倍数”。
sometime为副词，表“在某时；有朝一日”，指将来或过去的一个不确定时间。
some time指“一段时间”，time此处为不可数名词，意为“时间”。
口诀：有s是有时，有时分开好几次；无s是某时，某时分开是一段。
例：Sometimes he goes to the cinema on Sunday.
星期天他有时去看电影。
He has been to Beijing for some times before.
他以前去过北京几次。
We will take our holiday sometime in August.
我们将在八月的某个时间度假。
I spend some time practicing speaking English every day.
我每天花一些时间练习说英语。
【同步练习】
1．The foreign friends will come to our school ____________next week.
2．We have known each other for ____________．
3．Usually I come by car，but ____________ I come by train.
4．I am sure that we have met ____________ before.
六、辨析maybe，may be
maybe是副词，意为“可能”，常位于句首，相当于另一副词perhaps。
may be是“情态动词may＋be”构成的谓语部分，意为“也许是；可能是”。
例：Maybe he is not very healthy.
可能他不是很健康。
The book may be Peter's.
这本书也许是彼得的。
【同步练习】
1．____________ she knows the answer，but I'm not sure.
2．The girl ____________ Mr.Brown's student.He knows her well.
七、辨析little，a little，few，a few
little作形容词时，修饰不可数名词，意为“少量；几乎没有”，表否定意义。
a little意为“一点儿”，修饰不可数名词，表肯定意义。
few意为“没几个；几乎不；几乎没”，表示否定，修饰可数名词。
a few意为“少许；少数”，修饰可数名词复数，表肯定意义。
【同步练习】
1．Now teenagers are very busy with their schoolwork and they have ____________time to do exercise.
2．He can speak ____________ English，so he can talk to foreigners sometimes.
3．____________ eggs are left，so we have to buy some.
八、辨析try to do sth.，try doing sth.
try to do sth.意为“尽力做……；试图做……；设法做……”。
try doing sth.则意为“试着做……”。
【同步练习】
1．I worked hard and tried _____________(make)progress.
2．She tried ____________(open)the door by pushing it，but she failed.
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第7课时 八年级上册 Unit 1~Unit 2
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一、词汇拓展
1．few(adj.)→____________(比较级)→_____________(最高级)
2．bored(adj.)→____________(adj.)令人感到厌倦的
3．decide(v.)→____________(n.)
4．building(n.)→____________(v.)
5．hungry(adj.)→____________(n.)
6．all(pron.)→____________(反义词)
7．one(num.)→____________(adv.)第一次
8．two(num.)→____________(adv.)第二次
9．full(adj.)→____________(adj.反义词)
10．little(adj.&adv.)→____________(比较级)→____________(最高级)
11．health(n.)→____________(adj.)→____________(adj.反义词)
12．die(v.)→____________(adj.)→____________(n.)
13．always(adv.)→____________(反义词)
14．I(pron.)→____________(反身代词)
15．you(pron.)→____________(反身代词)
16．many(adj.)→____________(最高级)
17．wonder(n.)→____________(形容词)
18．different(adj.)→____________(反义词)
19．bottom(n.)→____________(反义词)
20．above(prep.)→____________(反义词)
二、单词拼写
1．As a reporter I worked for both a m____________ and a newspaper.
2．Steve was a____________ late for school.This morning he came in the classroom just when the bell rang.
3．M____________ he will come here，but I am not quite sure.
4．I feel a bit tired.H____________，I can't go to sleep.
5．After hours' climbing，we got to the t____________ of the mountain.
6．It has rained for many days and everything got w____________．
7．This is without doubt the best TV p____________I have ever seen.I like it very much.
8．To keep in good h____________，you should not eat too much junk food.
9．It s____________ that he will fall down.
10．They provide the h____________ people with food.
11．Some big stones are b____________ the water surface.We can't see them，but they are dangerous for ships.
12．How heavily it is raining！I think we should w____________ until the rain stops.
13．M____________students are for the plan.Only several students are against it.
14．If I had a lot of money，I would travel a____________ in the world.
15．This is a w____________ movie.It's very popular among young people.
16．After seeing so many bikes，she can't d____________ which to buy.
17．There are a lot of b_____________ in the forest.They are singing.
18．I live in that tall b____________．My room is on the 30th floor.
19．We will climb the h____________ this Sunday and go camping in it.
20．His father is a market t____________．He sells clothes.
21．If you work hard，you will make a d____________ in the future.
22．Whenever we see s____________in trouble，we should offer to help him or her.
23．N____________ can be learned without hard work.
24．He t____________ to sleep but he couldn't，because it was very noisy outside.
25．We usually think that the dog is clever while the p____________ is stupid.
三、用所给词的适当形式填空
1．What do you feel like ____________(do)today
2．I don't think ____________(someone)would agree with you.
3．He worked hardest but was paid the ____________(little)．
4．They decided____________(go)to the movies this Sunday.
5．Rex goes swimming ____________(two)a week.
6．There are many kinds of ____________(activity)in our school.
7．____________(anything)is impossible if you try your best.
8．Can you tell the ____________(different)between the two pictures
9．He knows even ____________(few)stories about the man than I do.
10．He is always the ____________(one)to get to office every morning.
11．Many people like dogs.But I ____________(like)them.
12．I feel a little tired.I need a cup of tea to relax ____________(I)．
13．It's an ____________(enjoy)experience to work with Sam.He is always so kind.
14．A lot of tall ____________(build)have been put up in our city in the past few years.
15．A ____________(trade)makes money by his business.
16．There's ____________(anything)wrong with my computer.It doesn't work now.
17．The singer is famous for his ____________(wonder)voice.
18．Once you make a ____________(decide)，you'd better not change your mind.
19．—I don't like the ____________(bore)trip，Mary.What about you
—I'm also ____________(bore)with it.
四、完形填空(精讲分析)
A small gray box sits on the dresser in my bedroom.Inside is a collection of the most meaningful and __1__ letters I have ever received.They're from my father，who was diagnosed(诊断)with a rare form of cancer in 1997，and __2__ about a year later.The letters __3__ the hole that was caused by my dad's death inside me.
In that year，my father somehow found the strength to sit down，pen in hand，and pass his boring memories and words of wisdom(智慧)on to my two sisters and me.
He __4__ about 25 letters in total—some of them addressed to all three of us，and others to each of us individually(分别地)．My mom held on to them until we were ready to __5__ them.Sometimes my dad wrote about __6__ moments.But he also brought up important issues(问题)．On the topic of drugs he wrote，“You don't have to do drugs(碰毒品)to make other girls accept you.People will appreciate you for who you are，for total you，not because you do drugs.A person becomes cool and interesting not __7__ drugs but by developing his personality.Then he is the person people __8__ to be around in the long run.” And his advice about college and jobs is particularly(尤其)__9__ to me now，at the age of 21.
Seventeen __10__ has passed since my dad died and we have grown so much since then.McKenzie and I are in college，and Ali has __11__ high school.Soon I'll __12__ my first job.My dad hasn't been here，physically，at least，to give us a high five，a hug or a lecture when necessary，__13__ we all feel his presence(存在)because we have his __14__．And his words guide and __15__ us.
( )1. A．hopeful B．peaceful
C．comfortable D．valuable
( )2.A.understood B．retired
C．died D．worked
( )3.A.explore B．form
C．fill D．open
( )4.A.downloaded B．improved
C．wrote D．checked
( )5.A.read B．give C．burn D．find
( )6.A.strange B．simple
C．old D．difficult
( )7.A.joining in B．packing up
C．breaking down D．depending on
( )8.A.beg B．refuse
C．want D．hate
( )9.A.normal B．helpful
C．new D．useless
( )10.A.years B．months
C．weeks D．hours
( )11.A.avoided B．organized
C．entered D．quit
( )12.A.make up B．set up
C．set down D．look for
( )13.A.once B．but C．if D．so
( )14.A.pens B．looks
C．dreams D．letters
( )15.A.encourage B．surprise
C．attract D．award
五、语法填空(精讲分析)
There are many kinds of pollution now.Light pollution is one 1.____________ them.Do you know the 2.____________(way)to reduce(减少)it
First of all，you can decide 3.____________ you're going to deal with it or not.Each of us can do something useful to stop light pollution in our own ways.
Secondly，make 4.____________ that your outdoor lights are on only when you need them.It means that they're only on when there is an activity in the area.
5．____________(three)，reduce the wattage(瓦数)of your lights as much as you can.We need light to play，work or do other things.6.____________ it doesn't mean that we should have very strong light.Too much light can be very bad for our eyes.
Light pollution is the result of 7.____________(waste)energy.It's useless to provide light where it isn't 8.____________(need)．Poorly designed lighting 9.____________ (cause)much light pollution.
Even a small change in wattage will reduce light pollution.You might be 10.____________(surprise)at how well you can see at night with reduced wattage.Try it out and see how it works.
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