15．The most energetic festivals are the ones thatlook forward to the end of the winter and the comin——青夏教育精英家教网——

15．The most energetic festivals are the ones thatlook forward to the end of the winter and the coming of spring．（期盼）

14．Have you ever wondered why birds sing？（36）B After all，you probably sing or whistle when you are happy．
Some scientists believe that birds do sing some of the time just because they are happy．
（37）FTheir singing is actually a warning to other birds to stay out of their territory．Do you know what a"territory"is？A territory is an area that an animal，usually the male，claims（声称） as its won．Only he and his family are welcome there．No other families of the same species are welcome．Your yard and house are your territory where only your family and friends are welcome．If a stranger should enter your territory and threaten you，you might shout．（38）EIf so，you have actually scared the stranger away without having to fight him．（39）ABut he expects an outsider almost all the time，especially at nesting（筑巢） season．So he is screaming all the time，whether he can see an outsider or not．This screaming is what we call a bird's song，and it is usually enough to keep an outsider away．
Birds sing loudest in the spring when they are trying to attract a mate（配偶） and warn others not to enter the territory of theirs．
（40）D Most of it has to do with attracting males and setting up territories．

A．A bird does the same thing．
B．Maybe you thought that they were just happy．
C．Shouting loudly is just like a bird's screaming．
D．You can see that birds have a language of their own．
E．Probably this would be enough to frighten him away．
F．However，they sing most of the time for a very different reason．
G．So，just like human beings，birds sing for almost the same reasons．

13．假设你是李华，打算明年出国留学．请你根据以下要点提示，给你的美国笔友Lucy写一封电子邮件．
（1）出国留学的打算（如在申请学位课程之前学习一年英语、住在寄宿家庭等）；
（2）出国留学的原因；
（3）期待与她见面．
注意：
（1）词数100 左右（开头已给，不计入总词数）；
（2）可适当增加细节，以使行文连贯．
Dear Lucy，
How are you？
I've decided to study abroad next year．Before applying for a degree course，I will first spend a year focusing on my English，which I think is beneficial to my further study．（高分句型一）Instead of living in student accommodation or an apartment，I'd like to live with a host family，which I think will give me the chance to learn more about the new culture．（高分句型二）As for the main reason why I want to study abroad，the academic benefits come first．Secondly，it will allow me to become independent while studying abroad，because I will have to do everything on my own．
I am looking forward to seeing you then．And I hope you can give me some advice on what I should prepare in advance．（高分句型三）Thank you!
Yours sincerely，
Li Hua．

12．Every time when I returned after an absence，I felt stupid because I was behind the others．去掉when．

11．Just accept them for who they are，and give them encouragement to live as rich and full life as you do．life 前加a．

10．Mum can't have Peter stay up all night long．stay 改为staying．

9．I came up this book in an old bookstore several days ago．up 改为 across．

8．They urged that the gym was kept open during the work time．was 改为 be．

7．Would you like to introduce your new published book to us？new 改为newly．

6．But monitoring carefully，the snakes proved to be no trouble and all went according to plan．monitoring 改为monitored．

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