Can eating a chocolate bar every day really prevent age-related memory loss? No. But a new research shows that large amounts of flavones(黄酮), substances found in cocoa, tea and some kinds of vegetables, may improve age-related memory failure.
Dr. Scott Small is a professor of neurology (神经学) at Columbia University in New York City. He is the lead writer of a research paper describing the effects of cocoa flavones on brain activity. His study involved 37 volunteers aged between 50 and 69. Researchers gave them a high-level flavones drink made from cocoa beans or a low-level flavones drink. For a period of three months, some subjects got 900 milligrams of flavones a day. The others got 10 milligrams of flavones each day. Brain imaging and memory tests were given to each study subject before and after the study. Dr. Small says that the subjects who had the high-level flavones drink showed much improvement on memory tests.
The researchers warn that more work is needed to be done because this study was performed only on a small group. Dr. Joann Manson is the lead researcher of a four-year study involving 18,000 adults. This study will use flavones capsules. The study subjects will be divided into two groups and will take two pills per day. The capsules used will all look the same. But one group's capsules will contain flavones, while the other group will take capsules made of an inactive substance, or placebo（安慰剂）.
Dr. Manson says it's not necessary for people to start eating more chocolate, because 3 persons would have to eat a huge amount of chocolate to get the same level of flavones given to the rest subjects. He adds many manufacturers have planned to remove the flavones from their chocolate products. Similarly, Dr. Manson says a cocoa-based flavones extract（提取）may be developed in the future But he says that more studies are needed to see how much flavones is good for our health.
1.What was done to the subjects after Dr. Small's study?
A. They were asked to take a high-level flavones drink.
B. They were given brain imaging and memory tests.
C. They were given capsules containing flavones.
D. They were asked to take two pills of flavones capsules per day.
2.What's the similarity of the two experiments?
A. Both use high-level flavones capsules.
B. The number of the subjects is the same.
C. Drinks and placebos are used in both experiments.
D. The subjects are divided into two groups in both experiments.
3.Why will Dr. Manson carry out the four-year study?
A. To carry out the experiment further.
B. To prove the first experiment is wrong.
C. To test how much flavones can improve our memory.
D. To show eating chocolate is better to improve memory.
4.What can we learn from the last paragraph?
A. It's not necessary for us to eat chocolate.
B. In the future we can get flavones without eating chocolate.
C. The more we eat flavones, the better our health will be.
D. It's easy for people to get the same level of flavones given to the test subjects.
“Well, I finally did it. I finally decided to enter the digital age and get a cell phone. My kids have been annoying me and the last straw was when my car broke down, and I was stuck by the highway for an hour before someone stopped to help. But when I went to the cell phone store, I almost changed my mind. The phones all have cameras, computers and a “globalpositioning” something or other that's supposed to spot me from space. Goodness, all I want to do is to be able to talk to my grandkids! The people at the store weren't much help. They couldn't understand why someone wouldn't want a phone the size of a postage stamp. And the rate plans! They were confusing, and expensive…and the contract (合同) lasted for two years! I'd almost given up until a friend told me about her new Jitterbug phone. Now, I have the convenience and safety of being about to stay in touch with a phone I can actually use.”
Affordable plans that I can understand—and no contract to sign! Unlike other cell phones, Jitterbug has plans that make sense. Why should I pay for minutes I'm never going to use? And if I do talk more than I plan, I won't find myself with no minutes like my friend who has a prepaid phone. Best of all, there is no contract to sign—so I'm not locked in for years at a time. The USbased customer service is second to none. And the phone gets service anywhere in the country.
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1.What made “I” finally think of getting a cell phone?
A．Being stuck by the highway.
B．Being urged by his grandkids.
C．Being persuaded by cell phone salespersons.
D．Being attracted by the friendly
return policy.
2.On the monthly basis of 100 minutes, the Jitterbug weekly rate is about ________.
A．$19.99 B．$14.99 C．$4.99 D．$3.75
3.An advantage of Jitterbugmentioned in the passage is ________.
A．its discount price with a free gift
B．its “globalpositioning” system with 911 access
C．its reasonable rate plans without a contract
D．its good customer service all over the world
4.The main purpose of the passage is to ________.
A．tell a customer's story of Jitterbug
B．provide two ways to order Jitterbug
C．give a brief introduction of Jitterbug
D．attract potential customers to Jitterbug
A paperclip，made of steel wire bent into a looped (环形的)shape，is an instrument used to hold sheets of paper together．This common device is a wonder of simplicity and function．But where did this simple，cheap，and practical invention come from?
In the late 19th century，the most common way to hold papers together was by using a pin．Although the pin was an inexpensive tool and was easily removable，it would 1eave holes in the paper. Later，as steel wire became more common，inventors began to notice its elastic(有弹性的)feature. With this feature，it could be stretched and twisted into various clip—like objects．In the years just before 1900，quite a few paperclip designs appeared．The name most frequently associated with the paperclip invention is Johan Vaaler，a Norwegian inventor. However, Vaaler’s clips were not the same as the paperclips currently in use．Specifically，they did not have the inside loop we see today．The familiar looped design was invented by Gem Manufacturing Ltd．in England．This clip is therefore sometimes known as the Gem clip．
Because of Vaaler，the paperclip played an important historical role in Norway．During World War II，Norway was occupied by the Nazis．Norwegians were prohibited from wearing any symbol of their national unity(团结)，such as buttons with the initials of their king．Thus，in protest，they started wearing paperclips to show their unity．The reason for doing this was simple：Paperclips were a Norwegian invention whose original function was to bind together．After the war，a giant paperclip statue was put up in Oslo to honour Vaaler—even though his design was never actually produced．
1.According to the first paragraph，the paperclip is________．
A．made of paper
B．shaped like a pin
C．inexpensive and useful
D．for holding clothes together
2.One way the paperclip is better than the pin is that_________
A．it is cheaper
B．it is simpler
C．it can be removed more easily
D．it doesn’t damage the paper
3.Which of the following best shows what the Gem clip looks like?
4.The last paragraph is mainly about_________．
A．how Vaaler’s clip became a national symbol
B．how widely used Vaaler’s clip is
C．how the Nazis ruled the Norwegian people
D．why Norwegians had the initials of their king on their buttons
假设你是李华，在互联网上看到英国高中生David登的一则启事：希望结识一位中国朋友，以便学习中国的语言、文化。请你以李华的名义用英文给David发一封电子邮件，主要内容包括：
1.你怎样得知David的愿望；
2.你愿意成为他的朋友；
3.你打算如何帮助他；
4.你盼望他的回复。
注意：(1)电子邮件的格式已为你写好，不计入总词数； (2)词数：100左右。
Dear David,
I’ve learned____________________________________________________
Yours sincerely,
Li Hua
假定英语课上老师要求同桌之间交换修改作文, 请你修改你同桌写的以下作文。文中共有10处语言错误, 每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号(∧), 并在其下面写出该加的词。
删除：把多余的词用斜线(＼)划掉。
修改：在错的词下画一横线, 并在该词下面写出修改后的词。
注意：1. 每处错误及其修改均仅限一词。
2. 只允许修改10处, 多者(从第1
1处起)不计分。
One year ago, I was in great trouble. I work hard at English and devoted all my spare time to practise it. But I failed to pass the mid-term exam, which made me great disappointed. So I asked my grandpa for advice when I got to home. Hearing that I told him, he said, “To some extent, exam results sometime can’t truly reflect your ability. You can’t judge your progress by one examination.” He encouraged myself to work hard for long time to check my results. I took my grandpa’s advice. Now my English is much better than ago. From my experience, I feel that we should listen to opinion from old people.
