Section C

Passage One

整体预测

本短文三道题选项中的parents to enforce bedtime，students to rise early和get up early表明，短文可能与学生作息时间有关。

A Brown University sleep researcher has some advice for people who run high schools：Don’t start classes so early in the morning.It may not be that the students who nod off at their desks are lazy.And it may not be that their parents have failed to enforce bedtime.Instead，it may be biologically that these sleepyhead students aren’t used to the early hour.

“Maybe these kids are being asked to rise at the wrong time for their bodies，”says Mary Carskadon，a professor looking at problems of teenage sleep at Brown’s School of Medicine.

Carskadon is trying to understand more about the effects of early school time on teenagers.And at a more basic level， she and her team are trying to learn more about how the biological changes of teenagers affect sleep needs and patterns.

Carskadon says her work suggests that teenagers may need more sleep than they did at childhood，not less，as commonly thought.

Sleep patterns change during teenage，as any parent of a teenager can prove.Most teenagers prefer to stay up later at night and sleep later in the morning.But it’s not just a matter of choice—their bodies are going through a change of sleep patterns.

All of this makes the transfer from middle school to high school—which may start one hour earlier in the morning—all the more difficult，Carskadon says.With their increased need for sleep and their biological clocks set on the“sleep late，rise late”pattern，teenagers are up against difficulties when it comes to trying to be up by 5 or 6 am for a 7：30 am first bell.A short sleep on a desktop may be their body’s way of saying，“I need a timeout.”

16.Why does Carskadon suggest that high schools should not start classes so early in the morning？

解析B）。选项中的because，difficult，students和rise early表明，本题可能考查学生不能早起的原因。短文中提到“Instead，it may be biologically that these sleepyhead students aren’t used to the early hour.”，即可能是这些学生在生理上不习惯早起，故答案为B）。it may be…that是个强调句，强调成分为biologically。

17.What might be a reason for the hard transfer from middle school to high school？

解析C）。选项中的sleep，better和more表明，本题可能考查青少年的睡眠变化。短文中提到teenagers may need more sleep than they did at childhood后又提到all of this makes…transfer…more difficult，即从初中到高中要早起一个小时，这个转换有点困难，其原因是学生比以前需要更多的睡眠时间，故答案为C）。

18.What is the passage mainly about？

解析D）。选项均为名词短语且概括性强表明，本题可能考查短文主旨。短文主要介绍了青少年的睡眠需求和模式的改变，故答案为D）。

Passage Two

整体预测

根据第19题各选项均为美国大学名称、第20题中重复出现的students以及第21题各选项均为课程名称可推断出，短文可能与美国大学有关，涉及学生以及课程的情况。

The latest report from the Institute for International Education gives information from the school year that began in September of last year and ended in May of this year.It says more than 500，000 foreign college students attended American schools during that school year.

New York University in New York City had the largest number of foreign students.Almost 5，000 foreign students attended NYU last year.The University of Southern California at Los Angeles had the second largest number of students，about 4，500.

The report says the State of California had the most foreign students，with about 66，000 living there last year. New York State was next，with about 55，000 foreign students.

China sent the most foreign students to the United States last year.More than 54，000 Chinese students attended American schools.Japan sent the next highest number of students，almost 47，000.India was next，with about 42，000. And South Korea was fourth，sending more than 41，000 students to the United States.

The report says the most popular subjects of study for international students in the United States last year were business and management.Twenty percent of all foreign students were studying those subjects.Fifteen percent studied engineering.Nineteen percent studied mathematics and computer science.

19.Which university had the second largest number of foreign students in America？

解析B）。选项均为美国的大学名称表明，本题可能考查美国大学。短文中提到，一份最新的报告显示，位于纽约城的纽约大学的留学生数量最多，排在第二的是位于洛杉矶的南加州大学，故答案为B）。问题中的the second largest number为听音的关键。

20.What can we learn about the State of California according to the latest report？

解析A）。选项中的it had the most…students，its students outnumbered…和its foreign students表明，本题中的it应与学生有关。短文中提到，最新的报告指出加利福尼亚州（the State of California）的留学生数量最多，故答案为A）。最高级处为常考点，听音时应留意。

21.What were the most popular subjects for the international students in the United States last year？

解析B）。选项的内容表明，本题可能考查专业课程。短文结尾提到，最新的报告指出在美国最受留学生欢迎的专业是商务与管理（business and management），故答案为B）。

Passage Three

整体预测

本短文四道题选项中的he，luggage，travels around the world和cheap tickets表明，短文是关于男士的情况，可能与去国外旅游有关

Brian arrived at the San Francisco airport two hours before the flight to Paris.He was wearing three shirts，a jacket，two pairs of socks，a pair of shorts，and two pairs of jeans.He was carrying one small bag，which was very full，but he didn’t have any other luggage.Brian needed to meet a man named Tony before he checked in for his flight.He found Tony near the Air France counter.Tony gave him a round-trip ticket and a small package.

“Give this package to Jean-Paul at the airport in Paris.He will have a sign with your name on it.I think you can find him easily，”Tony said.“You don’t have any luggage，right？”

“Only this bag，”Brian answered.“You said I could bring one carry-on bag.”

“That’s right.One carry-on bag is fine.Have a good trip.”

“Thanks.”

Is Brian a criminal？Not at all.He is an air courier.And he paid only$110 for the round-trip ticket to Paris.Air couriers get cheap airline tickets because they take important packages and papers to foreign countries.Businesses sometimes need to get packages and papers to people in foreign countries by the next day.Often，the only way they can do this is to use an air-courier company.It is not cheap for a business to send a package with an air courier，but it is quick.

Every year about 80，000 people worldwide travel as air couriers.The number of tickets for courier travel is growing by about 10 percent a year.However，air-courier travel isn’t for everyone.But if you have very little money， can be flexible about your travel plans，and don’t mind wearing the same clothes for a week，it can be a great way to take a vacation！

22.Why was Brian wearing so many clothes for his travel？

解析D）。选项中的luggage，uniforms和bag表明，本题可能考查男士随身携带的物品或他的穿着。由短文中提到的“he was carrying one small bag，which was very full...”可知，他身穿这么多衣服，不是不想装在包里，而是包很小且已经塞满了。D）中的had no room是对短文中full的同义转述，故答案为D）。

23.What do we learn about an air courier’s job from the passage？

解析C）。选项中主语均为he，由一系列动词organises，travels，delivers，manages以及它们的宾语可知，本题可能考查男士工作的相关情况。由短文中提到的“Air couriers…take important packages and papers to foreign countries.”可知，空中信使的职责就是往国外运送重要的文件或包裹，C）的表述与此一致，故为答案，其中delivers与短文中的take同义。听音时要听清问题中的an air courier’s job，明白选项中的he指的是和布赖恩拥有同样工作的一类人。

24.Why do businesses choose the air-courier service according to the passage？

解析C）。选项主语均为it以及选项中的costs less，flexible，saves time和grows fast表明，本题可能考查it的好处。由短文中提到的to use an air-courier company...is not cheap…but it is quick可知，空中信使公司提供的服务并不便宜，但是速度很快。C）中的saves time是对短文中quick的同义转述，故答案为C）。前面提出businesses的问题，后面给出解决的办法。注意此类“提出问题—给出解决办法”的逻辑关系。

25.What is one of the disadvantages of travelling as an air courier？

解析D）。由选项主语均为he以及选项中的has to，cannot，saves little money和cannot decide均为表否定意义的词汇可知，本题可能考查男士工作中不好的一面。由短文中提到的but if you…can be flexible about your travel plans…it can be a great way to take a vacation可知，自己的旅行计划比较灵活，即能满足客户时间和地点的需要，在这个前提下，空中信使的工作对个人而言才是比较好的旅行方式。也就是说，空中信使无法决定自己何时去何地旅行，D）的表述与此一致，故为答案。but转折处和if条件处所表达的观点常设为考点。