题目内容

4．Beijing was under an"orange"smog alert on Feb.24，which marks the first time the second-highest warning level of a new system introduced last year_____．（　　）
A．has been raisedB．raisedC．has risenD．rose

分析 北京在2月24号处于‘橙色'雾霾预警之中，这表明由去年所引入的新系统中的二级警报等级已经提高了．

解答 答案：A 考查现在完成时的被动语态．这个警报系统是根据雾霾的水平来提高的，就像天气预报那样，如果有强台风来袭，气象部门就会提高警报级别，警报级别不会自动升高，用及物动词raise的被动语态，又根据marks所体现的一般现在时，且句中"introduced last year"为后置定语修饰system，可知"现在已经被提高了"，用现在完成时的被动语态，正确答案为A．B项：一般过去时，但缺少宾语；C项：现在完成时；D项：一般过去时．

点评 解答此类问题要了解各种时态的用法，然后根据上下文及结合语境给出正确答案．

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17．Consumers，whose purchases ________ about 70% of economic activity，face a variety of challenges．（　　）
A．take upB．account forC．hold upD．turn over
16．假定你是李华．你所在的校乒乓球队正在招收新队员．请给你的留学生朋友Eric写封邮件邀请他加入，内容包括：
   1．球队活动；
   2．报名方式及截止日期．
注意：
   1．词数100左右；
   2．可以适当增加细节，以使行文连贯．
Dear Eric，
I am Li Hua．I'm writing to inform you that my school's table tennis team is recruiting new players．（高分句型一）I know you are good at playing Ping pong，so I want to invite you to join the team and to be a member of it．
Table tennis is very popular with students in our school，and because our school table tennis equipment is perfect，our school often holds many big activities，for example，"Harmonious Cup"table tennis match and middle school table tennis championship．（高分句型二）If you join the team，you can get systematic training and compete with high level players in the events．We hope you will accept our invitation．You can download the registration form our school website and fill it out and send it to the school email box．Registration deadline is July 31，2017．If you have any questions，please write to me．
I am looking forward to your reply．
Best wishes，
yours，
Li Hua．

假定你是李华，你校的交流生Lucy下周打算去老师家做客，但是她不知道中国人做客有哪些传统，她给你发了一封电子邮件，请你给她一些建议。请你根据下列要点，给她回复一封电子邮件。

要点如下：

1．适当地送一些礼物。

2．介绍中国的餐桌礼仪。

注意：

1．词数100左右。（开头和结尾已给出，不计入总词数）

2．可以适当增加细节，以使行文连贯。

Dear Lucy,

I have received your email. You asked me for some suggestions on how to be a guest in China. ______________

______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

I do hope you will enjoy yourself in your teacher’s home.

Yours sincerely,

Li Hua

I have a friend who lives by a three-word philosophy: Seize the moment. Just possibly, she may be the wisest woman on this planet. Too many people put off something that brings them joy just because they haven't thought about it. Don't have it on their schedule, and didn't know it was coming or they are too strict to depart from their routine.

I can't count the times I called my sister and said, “How about going to lunch in half an hour?” She would gasp and stammer(结结巴巴地说), “I can't. I have clothes on the line. My hair is dirty. I wish I had known it yesterday, I had a late breakfast, and it looks like rain.” And my personal favorite response: “It's just Monday.” She died a few years ago. We never did have lunch together. From then on, I've tried to be a little more flexible.

Life has a way of going faster as we get older. The days get shorter, and the list of promises made to ourselves gets longer. One morning, we are awaken, and all have to show for our lives is repetition of “I'm going to”, “I plan on” and “Someday, when things are settled down a bit.”

When anyone calls my “seize the moment” friend, she is open to adventure and available for trips. She keeps an open mind on new mind on new ideas. Her enthusiasm for life is contagious. You talk with her for a while, and you're ready to change your attitude to life.

My lips have not touched ice cream in 10 years. I love ice cream. The other day, I stopped the car and bought a triple-decker. If my car had hit an iceberg on the way home, I would have died happy. Now go on and have a nice day. Do something you WANT to, not something on your SHOULD DO list.

1.The example of the writer's sister serves as ________.

A. an argument B. an introduction

C. a support D. a conclusion

2.The writer thinks that the underlined excuse “It's just Monday.” is acceptable, because ________.

A. it is still likely that they can have lunch together some time later

B. it sounds most reasonable of all the excuses

C. it shows respect for the writer's suggestion

D. it indicates the time when they can have lunch together

3.The underlined word “contagious” in the fourth paragraph means “________”.

A. accurate B. influential

C. hopeful D. necessary

4.What is the purpose of the writer by writing this passage?

A. To suggest how time flies.

B. To persuade busy people to relax.

C. To advise people to keep their promise.

D. To convince readers to be flexible on their schedule for practical joy.
9．The young man has ______ experience．He probably can't do that job．（　　）
A．fewB．littleC．someD．any
3．此题要求改正所给短文的错误．对标有题号的每一行作出判断：如无错误，在该行右边横线上划一个勾（√）；如有错误（每行只有一个错误），则按下列情况改正：
该行多一个词：把多余的词用斜线（\）划掉，在该行右边横线上写出该词，并也用斜线划掉．
该行缺一个词：在缺词处加一个漏字符号（∧），在该行右边横线上写出该加的词．
该行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词．
注意：原行没有错的不要改．
After read your advertisement，I want to offer yourself for the position．I'm twenty years old，male，1.78meters tall，strong and health．And I   am going to graduate from Nanjing University this year．I had learned English for ten years．My speaking English is very good and I can write good article．I have won several prizes in Engli  sh contests．I have been made a great number of  inventions，most of them have been put into practice．But I can use the computer skillfully．If I can get the job，I'll do all I can do it well．
Thank you for your kindness．
16．EVENTS
Long March exhibition
The Shanghai History Museum is putting on an exhibition to mark the 80th anniversary of the Long March．On show are more than 220 photos and 40 items that explain with pictures how the communist Red Army drew back from its besieged（被围困的） bases in Jiangxi Province and fought its way to northern Shanxi Province in the mid-1930s．Explanations are all in Chinese．The show will end on November 20．
Time：10：00 am-4：00 pm                Address：1286 Hongqiao Road
Admission：8 yuan for Chinese/15 yuan for foreigners
Thai elephants
    Eight elephants from Thailand are entertaining visitors at Changfeng Park by riding bikes，playing basketball，balancing on a pole，dancing and blowing a mouthorgan（口琴）．People are encouraged to have a tug-of-war（拔河比赛）with the animals or lie on the ground and have the elephants walk over them．The elephants give three shows a day at 9：30 am，3：30 pm and 8：00 pm and there is an additional show at l：30 pm at weekends．The show will end on November 15．
Address：189 Daduhe Road                   Admission：30-40 yuan
Dancing dolphins
Dolphins jumping from the water to touch a ball，swaying their bodies to music，kissing people and doing math by tapping their tails have made the dolphinarium（海豚馆） in Peace Park an attraction for children．Seals and sea lions also perform．
Hours：10：30 am，4：00 pm，and 7：30 pm
Admission：20 yuan for adults and 10 yuan for children．（252 words）
21．If you go to visit the Long March exhibition with an Australian，how much will you pay altogether for the admission？C
A．16 yuan．  B．30 yuan． C．23 yuan．D．20 yuan．
22．Which of the following is NOT done by the Thai elephants？D
A．Riding bicycles．
B．Blowing a mouth-organ．
C．Having a tug-of-war with people．
D．Doing math．
23．The dolphinarium in Peace Park is a hall where you can seeC．
A．only seals and sea lions perform
B．only dolphins perform
C．not only dolphins but also seals and sea lions perform
D．only seals perform．
17．Scientists have overcome a major difficulty for humans to receive life-saving organ transplants from pigs，thanks to a powerful new gene-editing technique．
In a paper in the US journal Science，the researchers described using gene-editing method to remove potentially harmful DNA sequences at 62locations，which are the remnants（留存之处） of a virus called PERV，from the pig genome．
Globally human organs for transplant being short in supply，researchers and doctors have long hoped that the problem could be solved through the availability of suitable animal organs for transplant，a concept known as xenotransplantation．
Pigs have been especially promising candidates due to their similar size and biological structure to humans．
But one of the largest safety concerns has been the fact that pigs，similar to most mammals，contain PERVs in all their living cells-that are harmless to their native hosts but can cause disease in other species．
"PERVs and the lack of ability to remove them from pig DNA was a real barrier on the promising stage set for xenotransplantation．"
In the new study，scientists made 62genetic edits to inactivate viruses in pig cells，which they called"an explosive leap forward"．
When these cells were then introduced to human cells in the lab，PERV infectivity was reduced by up to one thousand fold，they said．
"Our work got away the shadow PERVs put above the field more than a decade ago when the virus was discovered，while renewing our faith in xenotransplantation，"lead author Luhan Yang，a post-doctoral fellow at the Harvard University，said．
The team hopes eventually they can completely root out the risk that PERVs could cause disease in xenotransplantation by using modified pig cells to clone a line of pigs that would have their PERV genes inactivated．"We still have a long way to go，though．"Luhan added．

33．From the passage，we may know thatD．
A．PERV is found during Luhan Yang's experiments
B．PERV infecting rate has been reduced to 1‰now
C．the breakthrough is the result of a decade-long project
D．PERV is not a threat to same species in organ transplantation
34．Which of the following is TRUE？C
A．Explosive materials are used in experiments．
B．Experiments are carried out in 62locations in US．
C．Further research is still needed in Xenotransplantation．
D．Gene-editing method is used to remove harmful pig organs．
35．Which would be the best title for the passage？D
A．A big breakthrough in scientific field．
B．Viruses in pig cells are inactivated．
C．Viruses are defeated by scientists．
D．New hope in xenotransplantation．

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