Unit 13 We’re trying to save the earth! 第四课时Section B（2c~Self Check）学案 (含答案)

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第四课时（Section B 2c—Self Check）
1.though此处作连词，引导让步状语从句，意为“尽管；虽然”，相当于although。
though／although引导的让步状语从句不能与but, however连用，但可与yet，still连用。
尽管他是个孩子，但是他知之甚多。
（正）Though/Although he is a child,he knows a lot.
（正）He is a child,but he knows a lot.
(正)Though/Although he is a child,yet he knows a lot.
(误)Though/Although he is a child,but he knows a lot.
2.need作实义动词，意为“需要”，后面接名词、代词、动词一ing形式及带to的动词不定式作宾语。need后面接动词ing形式时，动词ing形式表被动。此时主语常为某物。
(1) need sth“需要某物”。 I need your help.我需要你的帮助。
(2)need to do sth“需要做某事”。 Do you need to go at once?你需要马上走吗？
(3) need doing/need to be done“（某事）需要被做”。
The bridge needs repairing. =The bridge needs to be repaired这座桥需要(被)修。
①need还可用作名词，“需要”。A friend in need is a friend in need患难之交方是真朋友。/患难见真情。
②need作情态动词时，意为“需要；必须”，无人称或数的变化，后接动词原形。
You needn't worry.你不必担心。
由need引出的一般疑问句，肯定回答常用must或have to，否定回答常用needn't。
—Need I answer the question?我需要回答那个问题吗？
—Yes，you must／Yes，you have to.是的，你必须回答。/No，you needn't不，不必了。
3.worse and worse意为“越来越糟”，其结构为：“比较级+and+比较级”或“more and
more+原级（多音节或部分双音节词）”，意为“越来越……”。
He is getting taller and taller. The flowers are more and more beautiful.
比较级的常用句型：
①“甲+be+形容词比较级+than+乙”或“甲十实义动词十副词比较级+than+乙”，
“甲比乙……”。Tom is taller than Kate． I got up earlier than my mother this morning.
②“甲+be +the+形容词比较级+of the two+...”意为“甲是两者中较……的”。
Look at the two boys. My brother is the taller of the two.
③“the+比较级，the+比较级”意为“越……，越……”。
The busier my mother was，the happier she felt.我母亲越忙，她感到越快乐。
本单元短语：
短语聚焦：
save the earth拯救地球 2．noise pollution噪音污染 3．solve the problem解决问题
4．cut down减少 5．be good for对……有益 6.go shopping去购物
7．make a difference起作用 8．hear of听说 9．cut off割掉
10, not only.．．but also.不但……而且… 11. be harmful to对……有害
12. at the top of the food chain在食物链顶端 13. worse and worse越来越糟
14. take part in参加 15. not…any longer不再 16. begin with以……开始
17. turn off关掉 18. pay for付费；付出代价 19. add up加起来
20. take action采取行动 21. throw away奶掉；抛弃 22. put sth to good use好好利用某物
23. pull.．．down拆下；摧毁 24. upside down上下颠倒； 25. win a prize获奖
26. set up建立 27. be known for因……而闻名 28. look like看起来像
29. bring back恢复；使想起 30.in the ocean's ecosystem在海洋生态系统
用法荟萃：
1．try to do sth尽力做某事 2．play a part in doing sth.多加做某事
3．used to do sth过去常常做某事 4.instead of doing sth．代替做某事
5．start doing sth*开始做某事 6．remember to do sth．记得去做某事’
7．can，t afford to do sth担负得起做某事 8．by doing sth通过做某事
9．be good at doing sth擅长做某事 10. plan to do sth计划做某事
11. hope to do sth．希望做某事 12. need to do sth需要做某事
同步练习：
( )1.—Tony,could you give me a hand?
—Wait a minute,I___________.
A.am locking the door B.was locking the door C.lock the door D.will lock the door
( )2.—You are in a hurry.Where are you going?
—To the cinema.Sue_______ for me outside.
A.waits B.waited C.is waiting D.was waiting
( )3.Miss Lin______a lot of work for the poor area since 2010.
A.does B.did C.will do D.has done
( )4.Driving after drinking wine________ in China.
A.is not allowed B.are not allowed C.is not allowing D.is allowed
( )5.My sister has learned English _____________.
A.for twelve years ago B.since she was four C.twelve years ago D.at the age of four
( )6.A new park __________ in our hometown next year.
A.will built B.will be built C.is built D.will built be
( )7.—The relation between the two countries gets________.A War seems to break out soon
—I hope they will make peace with each other.
A.worse and worse B better and better
C more and more peaceful D.the worse and the worse
( )8. —What subject do you prefer?
—I prefer science,it's difficult．
A .or B.and C. so D.though
( )9. —Mum, ________ I play the computer game for a while?
—I'm afraid you have to finish your homework first.
A. must????? B. need?? ???? C. will?? ?????? D. may????????
( )10. —Many people play with mobile phones all day instead of reading books.
—That's too bad. Everyone ________ be a book lover.?Reading?is more enjoyable.
A. may? ?????? ???? B. should ????? C. would??? D.can’t
( )11. —Is that man Mr. Green?
—It ________ be him. He has gone to?Paris?on business.
A. may?????? B. must? ???? C. can't? ?????? D. shouldn't
( )12. I used to ________ newspapers and watch TV after dinner. But now I'm used to ________ a walk.
A. read; take? ???????????????B. read; taking? C. reading; taking? ????????????D. reading; take
( )13. Look! A dog ________ a blind man across the road.
A. leads ? ? ? ? ? ? ? ? B. lead???????????? C. is leading ? ? ? ? ? ? ? D. led
( )14. Uncle Liang ________ in?Haikou?since 1980, so he knows a lot about the city.
A. is living??? B. has lived???? C. lived??? D.living
( )15. Football ________ to our school subjects last year.
A. is added ? ? ? ? ? ? B. adds??? ?? C. was added? ? ??? ?????????? D. added
( )16. —Tom is always careless with his schoolwork. Could you help him?
—No problem! I think he ________ to think twice before starting.
A. should be told ? ? ? ? ? ?B. can tell C. should tell ? ? ? ? ? ? ? ?D. can be telling
二、语法填空。
Do you often throw away things you don’t need anymore? Have you ever thought about how these things can
actually be put to good use? Nothing is a waste1.______ you have a creative mind.
You have probably never heard of Amy Hayes, but she is a most 2._______(usual) woman. She lives in a house in the UK that she built herself out of rubbish. The windows and doors come from old buildings around her town that were pulled down. The top of the house is an old boat turned upside down. And the gate in front of her house is made of rocks and old glass 3.______(bottle). Amy recently won a prize from the Help Save Our Planet Society. The president said,“Amy is an inspiration 4._______ us all.”
Amy isn’t the only one 5.______is good at recycling. Jessica Wong from Hong Kong uses old clothes that people don’t wear anymore to make bags. She has been doing this for a few years now. She opened a small shop where she sells her bags, and she has also set up a website 6._______(sell) them online. She especially likes to use old jeans to make handbags. Her bags are cute and useful. “I plan to write a book about new ways to use old clothes,” she said. “I hope people can read my book and enjoy it!”
Wang Tao set up a small 7._______(busy) in Shanghai four years ago. He is 8._______(know) for using iron and other materials from old cars to make beautiful art pieces. Some are large pieces that look like animals or humans, and some are smaller pieces you can put at home. The more popular works can even been 9._______(see) in art shops around the city. Wang Tao hopes to set up a “metal art” theme park to show people the importance of environmental 10.________(protect ). Not only can the art bring happiness to others, but it also shows that even cold, and iron can be brought back to life with a little creativity.
短文改错。
Many have heard of shark’s fin soup. This famous and expensive dish
is especially popular in south China. But do you realize that you’re killing 1.__________
a whole shark each time you enjoy a bowl shark’s fin soup? 2.__________
When people catch sharks, they cut off theirs fins and throw the shark 3.__________
back into the ocean. With a fin, a shark can no longer swim and slowly dies. 4.__________
This method is not only cruel, but also harmful to for the environment. Sharks 5.__________
are at the top of the food chain in the ocean ecosystem. If their numbers 6.__________
drop too low, it will bring dangerous to all ocean life. Many believe that 7.__________
sharks can never be endangered so they are the strongest in their food 8.__________
chain. But in fact, around 70 million sharks are caught and traded in this 9.__________
industry every year. The numbers of some kinds of sharks has fallen 10.__________
by over 90 percent in the last 20 to 30 years.

参考答案：
1-5ACDAB 6-8BADDB 11-15 CBCBC 16. A
二1. if 2.unusual 3.bottles 4.to 5.who /that 6.to sell 7.business 8.known 9.seen 10.protection
三、1south→southern 2.在bowl后面添加of 3.theirs→their 4.With→Without 5.删除for
6.ocean→ocean’s 7.dangerous→danger 8.so→because 9.√ 10.has→have









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