When prehistoric man arrived in new parts of the world, something strong happened to the large animals; they suddenly became extinct. Smaller species survived; the large, slow-growing animals were easy game, and were quickly hunted to extinction. 

Now something similar could be happening in the oceans. That the seas are being over-fished has been known for years and researchers such as Ransom Myers and Boris Worm have shown how fast things are changing. They have looked at half a century of data from fisheries around the world. Their methods do not attempt to estimate the actual biomass (the amount of living biological matter) of fish species in particular parts of the ocean, but rather changes in that biomass over time. According to their latest paper published in Nature, the biomass of large predators (animals that kill and eat other animals) inanes fishery is reduced on average by 80% within 15 years of the start of exploitation. In some long-fished areas, it has halved again since then.

Dr. Worm acknowledges that these figures are conservative (保守的). One reason for this is that fishing technology has improved. Today’s vessels can find their prey using satellites and sonar, which were not available 50 years ago. That means a higher proportion of what is in the sea is being caught, so the real difference between present and past is likely to be worse than the one recorded by changes in catch sizes. In the early days, too, longlines would have been more saturated with fish. Some individuals would therefore not have been caught, since baited hooks would have been available to trap them, leading to an underestimate of fish stocks in the past. Furthermore, in the early days of longline fishing, a lot of fish were lost to sharks after they had been hooked. That is no longer a problem, because there are fewer sharks around noise.

Dr. Myers and Dr. Worm argue that their work gives a correct baseline, which future management efforts must take into account. They believe the date support an idea current among marine biologists, that of the “shifting baseline”. The notion is that people have failed to detect the massive changes which have happened in the ocean because they have been looking back only a relatively short time into the past. That matters because theory suggests that the maximum sustainable yield that can be cropped from a fishery comes when the biomass of a target species is about 50% of its original levels. Most fisheries are well below that, which is a bad way to do business.

1.The aim of the extinction of large prehistoric animals is to suggest that _______.

A．large animal were not easy to survive in the changing environment

B．small species survived as large animals disappeared

C．large sea animals may face the same threat today.

D．Slow-growing fish outlive fast-growing ones

2.We can infer from Dr Myers and Dr. Worm’s paper that _______.

A．the stock of large predators in some old fisheries has reduced by 90%

B．there are only half as many fisheries are there were 15 years ago

C．the catch sizes in new fisheries are only 20% of the original amount

D．the number of larger predators dropped faster in new fisheries than in the old

3.By saying these figures are conservative (line 1, paragraph 3), Dr worm means that_______.

A．fishing technology has improved rapidly

B．then catch-sizes are actually smaller then recorded

C．the marine biomass has suffered a greater loss

D．the date collected so far are out of date.

4.Dr Myers and other researchers hold that _______.

A．people should look for a baseline that can’t work for a longer time

B．fisheries should keep the yield below 50% of the biomass

C．the ocean biomass should restore its original level.

D．people should adjust the fishing baseline to changing situation.

5.The author seems to be mainly concerned with most fisheries’ _______.

A．management efficiency

B．biomass level

C．catch-size limits

D．technological application.

BEIJING——China will further open its financial sector in “an active and safe” way, the country’s central bank vowed on Friday.
“China will gradually broaden the chance for the participation of foreign capital in the domestic financial market,” said the People’s Bank of China in a report.“We will strengthen the connections between China’s financial market and international ones by attracting more foreign capital in Renminbi-denominated financial products,” the report said.
Meanwhile, channels will also be expanded to allow Chinese investment in foreign financial markets.
The bank said it would ease restrictions on enterprises and individuals possessing and using foreign currencies and increase the number of qualified foreign institutional investors and the value of their investment quotas(份额). “We will make use of the financial market to achieve balanced international payments,” said the bank.
Last year, the State Administration of Foreign Exchange (SAFE) raised the annual quota for individuals buying foreign currency from US $ 20,000 to US $ 50,000.
“China will work hard for a more efficient and vigorous financial market that can better serve international needs,” the bank said.
The country will adjust its financial market rules so they are accepted around the world, encourage reforms and promote more flexible, diversified ways of trading, according to the bank.
China fully opened its financial market to foreign capital on December 11 last year, ending a five-year transitional (过渡的) period after entering WTO.
1. The passage is_______________
A. a piece of news                           B. an advertisement
C. a poster                                  D. an explanation
2. China is working hard to_____________
A. reduce the interest rate of foreign currencies
B. increase the interest rate of foreign currencies
C. bring in more foreign investment by promising to further open its financial sector
D. adjust its financial markets to resist the invasion of foreign investment
3. To further open financial sector, China has taken many measures EXCEPT
A. Giving more chances to the participation of foreign capital
B. Strengthening the connections between China and other countries by the leaders’ paying visits to each other’s countries
C. Broadening the quotas of enterprises and individuals possessing and using foreign currencies
D. Opening its domestic financial market step by step
4. We can draw a conclusion that___________
A. China’s financial market will be conquered by foreign one
B. China will create a more active and various way of trading and its market will become stronger
C. China will end the transitional period of opening financial sector in five years
D. China will be blind to the foreign investment

When I was fourteen, I earned money in the summer by cutting lawns（草坪）, and within a few weeks I had built up a body of customers. I got to know people by the flowers they planted that I had to remember not to cut down, by the things they lost in the grass or struck in the ground on purpose. I reached the point with most of them when I knew in advance what complaint was about to be spoken, which particular request was most important. And I learned something about the measure of my neighbors by their preferred method of payment: by the job, by the month--- or not at all.

Mr. Ballou fell into the last category, and he always had a reason why. On one day, he had no  change for a fifty, on another he was flat out of checks, on another, he was simply out when I knocked on his door. Still, except for the money apart, he was a nice enough guy, always waving or tipping his hat when he’d see me from a distance. I figured him for a thin retirement check, maybe a work-relayed injury that kept him from doing his own yard work. Sure, I kept track of the total, but I didn’t worry about the amount too much. Grass was grass, and the little that Mr. Ballou’s property comprised didn’t take long to trim (修剪).

Then, one late afternoon in mid-July, the hottest time of the year, I was walking by his house and he opened the door, mentioned me to come inside. The hall was cool, shaded, and it took my eyes a minute to adjust to the dim light. 

“ I owe you,” Mr Ballou, “ but…”

I thought I’d save him the trouble of thinking of a new excuse. “ No problem. Don’t worry about it.”

“ The bank made a mistake in my account,” he continued, ignoring my words. “ It will be cleared up in a day or two . But in the meantime I thought perhaps you could choose one or two volumes for a down payment.

He gestured toward the walls and I saw that books were stacked (堆放) everywhere. It was like a library, except with no order to the arrangement.

“ Take your time,” Mr. Ballou encouraged. “Read, borrow, keep. Find something you like. What do you read?”

“ I don’t know.” And I didn’t. I generally read what was in front of me, what I could get from the paperback stack at the drugstore, what I found at the library, magazines, the back of cereal boxes, comics. The idea of consciously seeking out a special title was new to me, but, I realized, not without appeal--- so I started to look through the piles of books.

“ You actually read all of these?”

“ This isn’t much,” Mr. Ballou said. “ This is nothing, just what I’ve kept, the ones worth looking at a second time.”

“ Pick for me, then.”

He raised his eyebrows, cocked his head, and regarded me as though measuring me for a suit. After a moment, he nodded, searched through a stack, and handed me a dark red hardbound book, fairly thick.

“ The Last of the Just,” I read. “ By Andre Schwarz-Bart. What’s it about?” “ You tell me,” he said. “ Next week.”

I started after supper, sitting outdoors on an uncomfortable kitchen chair. Within a few pages, the yard, the summer, disappeared, and I was plunged into the aching tragedy of the Holocaust, the extraordinary clash of good, represented by one decent man, and evil. Translated from French, the language was elegant, simple, impossible to resist. When the evening light finally failed I moved inside, read all through the night,

To this day, thirty years later, I vividly remember the experience. It was my first voluntary encounter with world literature, and I was stunned (震惊) by the concentrated power a novel could contain. I lacked the vocabulary, however, to translate my feelings into words, so the next week. When Mr. Ballou asked, “ Well?” I only replied, “ It was good?”

“ Keep it, then,” he said. “ Shall I suggest another?”

I nodded, and was presented with the paperback edition of Margaret Mead’s Coming of Age in Samoa ( a very important book on the study of the social and cultural development of peoples--- anthropology (人类学) ).

To make two long stories short, Mr. Ballou never paid me a cent for cutting his grass that year or the next, but for fifteen years I taught anthropology at Dartmouth College. Summer reading was not the innocent entertainment I had assumed it to be, not a light-hearted, instantly forgettable escape in a hammock (吊床) ( though I have since enjoyed many of those, too). A book, if it arrives before you at the right moment, in the proper season, at an internal in the daily business of things, will change the course of all that follows.

1..The author thought that Mr. Ballou was ______________.

A. rich but mean                         B. poor but polite

C. honest but forgettable                   D. strong but lazy

2.. Before his encounter with Mr. Ballou, the author used to read _____________.

   A. anything and everything                 B. only what was given to him

   C. only serious novels                     D. nothing in the summer

3.. The author found the first book Mr. Ballou gave him _____________.

   A. light-heated and enjoyable               B. dull but well written

   C. impossible to put down                  D. difficult to understand

4.. From what he said to the author we can gather that Mr. Ballou _______________.

   A. read all books twice                    B. did not do much reading

   C. read more books than he kept             D. preferred to read hardbound books

5.. The following year the author _______________.

   A. started studying anthropology at college    B. continued to cut Mr. Ballou’s lawn

   C. spent most of his time lazing away in a hammock

   D. had forgotten what he had read the summer before

6.. The author’s main point is that _____________.

   A. summer jobs are really good for young people

   B. you should insist on being paid before you do a job

   C. a good book can change the direction of your life

   D. a book is like a garden carried in the pocket.

When I was fourteen, I earned money in the summer by cutting lawns（草坪）, and within a few weeks I had built up a body of customers. I got to know people by the flowers they planted that I had to remember not to cut down, by the things they lost in the grass or struck in the ground on purpose. I reached the point with most of them when I knew in advance what complaint was about to be spoken, which particular request was most important. And I learned something about the measure of my neighbors by their preferred method of payment: by the job, by the month--- or not at all.
Mr. Ballou fell into the last category, and he always had a reason why. On one day, he had no  change for a fifty, on another he was flat out of checks, on another, he was simply out when I knocked on his door. Still, except for the money apart, he was a nice enough guy, always waving or tipping his hat when he’d see me from a distance. I figured him for a thin retirement check, maybe a work-relayed injury that kept him from doing his own yard work. Sure, I kept track of the total, but I didn’t worry about the amount too much. Grass was grass, and the little that Mr. Ballou’s property comprised didn’t take long to trim (修剪).
Then, one late afternoon in mid-July, the hottest time of the year, I was walking by his house and he opened the door, mentioned me to come inside. The hall was cool, shaded, and it took my eyes a minute to adjust to the dim light. 
“ I owe you,” Mr Ballou, “ but…”
I thought I’d save him the trouble of thinking of a new excuse. “ No problem. Don’t worry about it.”
“ The bank made a mistake in my account,” he continued, ignoring my words. “ It will be cleared up in a day or two . But in the meantime I thought perhaps you could choose one or two volumes for a down payment.
He gestured toward the walls and I saw that books were stacked (堆放) everywhere. It was like a library, except with no order to the arrangement.
“ Take your time,” Mr. Ballou encouraged. “Read, borrow, keep. Find something you like. What do you read?”
“ I don’t know.” And I didn’t. I generally read what was in front of me, what I could get from the paperback stack at the drugstore, what I found at the library, magazines, the back of cereal boxes, comics. The idea of consciously seeking out a special title was new to me, but, I realized, not without appeal--- so I started to look through the piles of books.
“ You actually read all of these?”
“ This isn’t much,” Mr. Ballou said. “ This is nothing, just what I’ve kept, the ones worth looking at a second time.”
“ Pick for me, then.”
He raised his eyebrows, cocked his head, and regarded me as though measuring me for a suit. After a moment, he nodded, searched through a stack, and handed me a dark red hardbound book, fairly thick.
“ The Last of the Just,” I read. “ By Andre Schwarz-Bart. What’s it about?” “ You tell me,” he said. “ Next week.”
I started after supper, sitting outdoors on an uncomfortable kitchen chair. Within a few pages, the yard, the summer, disappeared, and I was plunged into the aching tragedy of the Holocaust, the extraordinary clash of good, represented by one decent man, and evil. Translated from French, the language was elegant, simple, impossible to resist. When the evening light finally failed I moved inside, read all through the night,
To this day, thirty years later, I vividly remember the experience. It was my first voluntary encounter with world literature, and I was stunned (震惊) by the concentrated power a novel could contain. I lacked the vocabulary, however, to translate my feelings into words, so the next week. When Mr. Ballou asked, “ Well?” I only replied, “ It was good?”
“ Keep it, then,” he said. “ Shall I suggest another?”
I nodded, and was presented with the paperback edition of Margaret Mead’s Coming of Age in Samoa ( a very important book on the study of the social and cultural development of peoples--- anthropology (人类学) ).
To make two long stories short, Mr. Ballou never paid me a cent for cutting his grass that year or the next, but for fifteen years I taught anthropology at Dartmouth College. Summer reading was not the innocent entertainment I had assumed it to be, not a light-hearted, instantly forgettable escape in a hammock (吊床) ( though I have since enjoyed many of those, too). A book, if it arrives before you at the right moment, in the proper season, at an internal in the daily business of things, will change the course of all that follows.
【小题1】.The author thought that Mr. Ballou was ______________.

Many women write to me perplexed(困惑的)about why they can’t form close friendships. They try new approaches, put themselves in all the right places, see therapists, and read relevant self-help books. They consider themselves interesting, loyal, kind and friend-worthy people. But for reasons unknown to them, they have a tough time forming intimate relationships. Many admit to not having even one close friend.

A recent study published in the Journal of personality and Social Psychology offers some clues as to how both nature (personality) and nurture (experience) impact our friendships. Researchers at the University of Virginia and University of Toronto, Mississauga studied more than 7,000 American adults between the ages of 20 and 75 over a period of ten years, looking at the number of times these adults moved during childhood. Their study, like prior ones, showed a link between residential mobility and adult well-being: The more times participants moved as children , the poorer the quality of their adult social relationships.

But digging deeper, the researchers found that personality—specifically being introverted (内向的) or extroverted (外向的) — could either intensify of buffer (缓冲) the effect of moving to a new town or neighborhood during childhood. The negative impact of more moves during childhood was far greater for introverts compared to extroverts.

“Moving a lot makes it difficult for people to maintain long-term close relationships,” stated Dr. Shigehiro Oishi, the first author of the study, in a press release from the American Psychological Association, “This might not be a serious problem for outgoing people who can make friends quickly and easily. Less outgoing people have a harder time making new friends.”

Families often have to relocate — across town, across the country, or across the globe. Yet, in many cases, their kids and young adolescents haven’t yet built up a bank of friendships. So the conventional wisdom is to try to minimize moves for the sake of your child, whenever possible , and to move at the end of the academic year.

1.The passage is written mainly to        .

2.Which of the following is true according to the second paragraph?

3.In order for children to maintain long-term close relationships , parents         .

4.We learn from the fourth paragraph that moves during childhood         .

5.We can infer from the passage that          .