文档内容
Unit 13 I’m trying to save the earth.
第二课时(分层作业)
基础达标
一、根据首字母填空
1．No matter how c________ the reality might be, we should never give up.
2．Smoking is h________ to our health, so the government sets a ban on smoking in all public
places.
3．Our government has made some l________ to protect the environment.
4．Ten p________ of the apples are green and the rest of them are red.
二、根据汉语提示填空
5．About 70 million sharks are traded in this ________（行业）every year.
6．We all support his ________(科学的) research.
7．They are ________（濒临灭绝的）animals. We should try to save them.
8．I am ________ (反对) their plans but hers.
9．To reduce waste, take a ________ (可重复使用的) bag with you when you go shopping.
10．We should keep the balance of the ________（生态系统）.
能力提升
三、完成句子
11．两个月以来，已经有400名大学生参加了名为“手机忍者”的测试。
400 college students ________ ________ ________ ________ the test called Mobile Phone Ninja
since two months ago.
12．我至今没有得到她的答复。
I have had no reply from her ________ ________.
13．我希望有一天我能买得起一所大房子。
I hope I can ________ ________ ________ a big house one day.
14．在过去的几年里，里克已经赢得了5枚金牌。
Rick has won five gold medals ________ ________ ________ ________ ________.
15．空气污染对我们的健康有害。
The air pollution ________ ________ ________ our health.
16．不同种类的花的数量正在快速增长。
________ ________ ________ different kinds of flowers is growing quickly.
17．我们必须趁早采取行动，否则就来不及了。
We must ________ ________ before it is too late.
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学科网（北京）股份有限公司四、单项选择
18．Anyone who is good at singing can ________ the activity in our school.
A．take part in B．take off C．take out D．take care of
19．Don’t play games on the computer all day. It’s to your eyes.
A．harmful B．program C．helpful D．thankful
20．I am afraid we can not ______to take a taxi. Let s go by underground instead
A．refuse B．afford C．forget D．fall
21．—Can you go to the movies with me tonight?
—I have to ask my mum. If I __________, I will go with you.
A．allow B．allowed C．am allowed D．was allowed
22．It is said that the number of forest Parks in Guangdong ______ to more than 1,000 so far.
A．increase B．increased C．has increased D．will increase
23．—Wow, your new dress is so beautiful. How much did you ________ it?
—Twenty dollars.
A．cost B．spend C．take D．pay for
24．In those days, books were produced ________ hand.
A．on B．with C．at D．by
25．—To achieve a bright future, we should ____________ study hard ____________ keep in
good health.
—I agree with you.
A．not；but B．not only；but also C．neither；nor D．either；or
26．─Have you __________ the shark fin soup?
─Yes, I__________ my pen pal and knew it.
A．heard of; heard from B．heard of; heard about
C．heard of; gotten a letter D．heard about; received from
27．Something must ________ to protect the sharks because many of them are endangered now.
A．do B．done C．be done
拓展训练
五、完形填空
Madison Stump is a 13-year-old entrepreneur (企业家) in the USA．To save our planet, she
has________28________.
Madison lives in a “green” family. She is___29___trying to be 100% earth friendly. One day,
Mandison was thinking over what else she could do to help the environment. ___30___, shethought, “Why not___31___those used boxes and paper to create beautiful notebooks? And I can
sell them to help people in need.” That night, Mandison made her first notebook with scrap paper
(废纸), and she used an empty gum box for a____32____It was the___33___of her green
business.
Mandison’s first customer was her sister. She, of course, never___34___it! However, Mandison
didn’t mind because she got to see her use it. Before you know it, all Mandison’s school friends
were asking to buy the amazing notebooks. Then, Mandison’s dad came up with the___35___idea
of starting a website, PaperAgain.com, so that these notebooks could be bought online.
Now Mandison is the___36___of a real business! Her notebooks are selling at the store in her
hometown. And she is often____37____on the local television news!
28．A．set out B．set off C．set up D．set at
29．A．always B．already C．never D．nearly
30．A．Happily B．Luckily C．Finally D．Suddenly
31．A．return B．recycle C．repair D．replace
32．A．cover B．paper C．face D．book
33．A．end B．change C．start D．entrance
34．A．paid for B．made for C．sent for D．waited for
35．A．familiar B．silly C．dull D．wonderful
36．A．worker B．winner C．owner D．master
37．A．explained B．reported C．replied D．spread
六、阅读单选
There are some easy things you can do to protect the environment and the earth. Choose
ideas from the list or come up with a few of your own.
·Plant flowers, grass or trees.
·Whenever you visit a park or beach, take away what you bring there—keep rubbish in a bag
until you can put it in a dustbin.
·Turn off the lights and TV sets when you leave the room. This can save a lot of electricity.
·Turn off the tap when you brush your teeth. You can save some water by not letting it run.
Also, use a glass cup instead of a paper cup because this saves paper.
·Keep the doors and windows closed in winter to keep warm air in.
·Give your old books and magazines to a library instead of throwing them away.
·Give your old clothes to poor children you know instead of throwing them away.
·Use both sides of paper.
·Stop pouring dirty water into the rivers or lakes nearby.
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学科网（北京）股份有限公司·Encourage all your friends to do the same things you do to help protect the earth. You don’t
have to wait until Earth Day to do these things. Make every day Earth Day. If everyone makes a
contribution to protecting the environment, the world will become much more beautiful.
38．From the above, we know that this is_______.
A．a sign B．a proposal (倡议书)
C．an advertisement D．a notice
39．The writer tells us _______.
A．to throw rubbish in to a dustbin B．to pour dirty water into the rivers
C．to save water D．we can’t do these things until Earth Day
40．We can _______to save paper.
A．use a paper cup B．use both sides of paper
C．give old books to a library D．pick up waste paper at a school
41．Which of the following is wrong according to the writer?
A．Turn off the lights when leaving the room. B．Close the doors and windows in winter.
C．Use a paper cup when brushing your teeth. D．Give your old clothes to the poor children.
42．What’s the best title of the passage?
A．Protect the Earth B．Save Water and Electricity
C．Make Better Use of Old Things D．Save Money
