Researchers in the US say they might have discovered how to fight against and even reverse some processes of ageing, at least in mice. Injecting the blood of young mice into the older ones improved their brainpower, a study found. Scientists at Stanford University plan to carry out trials in people in the hope that new treatments for dementia(痴呆症) can be developed.
“There are factors present in blood from young mice that can recharge an old mouse’s brain so that it functions more like a younger one,”says Dr. Tony from Stanford University School of medicine. In the study published in Nature Medicine, mice aged 18 months were given injections of the blood taken from mice aged 3 months. The injected mice performed better on memory tests than mice of the same age that had not been given the blood. Dr. Tony said it was not known whether the same was true of humans, but a trial was planned.
A research center in UK said the treatment restored certain aspects of learning and memory in mice, but was of unknown importance to humans. The research, while very interesting, did not test the type of brain damage that was seen in dementia, which is not a necessary consequence of ageing.
Meanwhile, two similar studies by a separate team have thrown more light on how young blood may benefit the old, in mice at least. A substance in the blood of mice previously shown to have an anti-ageing effect on heart muscle also improved brain cells, according to a Harvard team. The research, published in Science, found the blood factors encouraged the growth of brain cells in old mice, and restored their sense of smell. The same chemical also improved muscle power of aged mice, the researchers found.
1. The underlined word in paragraph 1 probably means _________.
A. change B. destroy
C. speed D. increase
2. Scientists in the US will test the discovery in humans with the aim of __________.
A. proving the possibility to live longer.
B. showing the importance of scientific research.
C. publishing the study in Nature Medicine.
D. treating an age-related disease successfully.
3.According to the studies, the blood from young mice benefits the old in certain ways except in_________.
A. memory B. muscle power
C. fur color D. brain cells
4.What’s the author’s attitude to the anti-ageing studies?
A. supportive B. objective
C. negative D. doubtful
If you're not a fan of KFC's famous Double Down hot dog, don't worry! KFC in the UK is developing a new treat: an edible coffee cup.
The product is still in the trial stage and not yet available for purchase, but according to a KFC news report, the treat is made from a unique biscuit, wrapped in sugar paper, and lined with a layer of heat-resistant white chocolate, which helps keep the coffee hot. As you drink the coffee in the cup, the white chocolate lining will begin to melt slowly, and the biscuit begins to soften.
But it doesn't end there --- the cups are not only edible, they also have a pleasant smell. KFC partnered with The Robin Collective, an experimental food company, to make the cups with coconut sun cream, freshly cut grass and wild flowers scents. According to the news report, that's because the scents arouse the positive memories we associate with warm weather, sunshine and summer holidays. Sounds ... delicious?
A manager at KFC said, “We have been experimenting with the edible packaging in limited quantities to see if it could be a popular product in the market. We believe if our customers occasionally like to have their cake and eat it, why wouldn’t they want to have their cup and eat it instead! ”
The edible cups will only be available in the UK when it comes out. According to a spokesperson for KFC, there are at present no plans to bring it to the U.S. yet.
1.The cup is lined with a layer of white chocolate to_________.
A. make the cup smell delicious
B. prevent the heat giving off soon
C. help the cup look beautiful
D. keep the biscuit tasting soft
2.What does KFC do with the new product in its trial stage?
A. Promote it by adding different scents.
B. Sell it at a lower price in the US first.
C. Invite customers to eat it for free.
D. Test it in the market in small quantities.
3.Which statement is NOT true according to the passage?
A. The cup not only tastes good but also smells delicious.
B. The cup is developed with the help of The Robin Collective
C. Customers all over the world can soon try the edible cup.
D. The cup is made from biscuit, sugar paper and chocolate.
4.What is the best title for the passage?
A. KFC’s new product---Edible coffee cups
B. A new treat---Coffee cups and positive memories
C. Coffee cups made from biscuits and chocolate
D. The development of KFC company in the UK
Have you ever had a science class that you look forward to? It doesn’t happen often. But when you have a teacher like Mrs. Field, it’s more than a science class. It’s a science class where learning is easy and fun. There is no getting down to a huge textbook or listening to a teacher about something you don’t care about.
My experience with Mrs. Field didn’t start with science class, but with her as my tutor. I was always a weak reader and wasn’t getting any better. My parents told me I needed to be tutored. One day after school, I went into the library with my mom for my first tutoring time. I had no idea who was tutoring me. My mom practically had to drag me into the library. The first thing we did was to play a game to get to know each other and get rid of the awkwardness. We didn’t even play a reading game.
We also went around the library and I got to pick out a book I wanted to read. She didn’t make me read a boring textbook about something I didn’t care about. I didn’t even pick a book. I picked out a magazine about remote control cars. I thought to myself, how bad could it be? To my surprise, She told me even though I was reading a magazine, I was still reading. After the first magazine, she picked out a book she liked. I would read a chapter and then she would read a chapter to me, in this way I didn’t have to read for long periods of time.
As I got better and faster at reading, I was able to read two chapters in the same amount of time, which used to take me to read one chapter.
Reading is one of the most important things in high school and college to be successful. If it were not for her, I would not be the reader I am today !
1. The writer tutored by Mrs. Field because____________.
A. he was too shy to talk with others.
B. he found science fun but hard.
C. he was eager to learn science.
D. he lacked the skills of reading.
2. It can be inferred from the second paragraph that __________.
A. the writer knew Mrs. Field very well
B. the writer was unwilling to be tutored
C. the writer felt awkward to read in the library
D. the writer went to the library to play a reading game
3. At the library, the writer __________.
A. chose any book he was interested in
B. played a reading game with Mrs. Field
C. was asked to read one chapter after another
D. had to read textbooks rather than magazines
4.What’s the author’s feeling about Mrs. Field according to the last paragraph?
A. unsatisfied B. worried
C. grateful D. regretful
书面表达
假定你是李华， 你校每年都有一次读书节，你想邀请在本市工作的英国朋友大卫参加今年的读书节，请你就此写一封邀请信，主要内容包括：
1. 起始时间和地点；
2. 活动：免费赠书和讲座。
3. 目的：鼓励学生。
注意：
1． 词数100左右；
2． 可以适当增加细节，以使行文连贯；
3． 开头和结语以为你写好，不计入总词数。
Dear David,
I’d like to invite you to join the annual Reading Festival of our school next Sunday.
Yours,
Li Hua
短文改错
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处错误, 每句中最多有两处。错误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: 在错的词下划一横线, 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11处起)不计分。
In our daily life, music plays important part. It can give us energy and making us happy. There is many kinds of music, such as country music, R&B, rock music and so on. Different people have different idea about music. Betty enjoys listen to the music that she can dance to, because she enjoys dancing. Many thinks jazz is really cool. John likes rock music and dance music. He thinks that them are interesting. Jane likes listening to some relaxed music. She likes country music a lot of, because it is easy to learn, and this kind of music is usual about our lives. What about you? What kind of music and did you prefer?
阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
Once upon a time in an old forest, there was a poor woodcutter 1. (cut) wood by the lake. One day, his axe斧子）fell into the lake 2. accident. The poor woodcutter didn’t know how to swim, 3. he could do nothing but pray to the lake goddess.
The lake goddess heard his prayer and appeared before him.
“Help me!” said the woodcutter, “I’m very poor，and I lost my only axe. If I don't get my axe back，my family will starve to 4. (dead)，please help me!” He cried. After a while, the goddess brought out an axe 5. (make) of gold from the lake.
“Is this your axe，my good man? ” asked the goddess.
"No." Then the goddess brought out a silver axe, but the woodcutter said that wasn’t his axe again.
The 6. (three) time, she brought out the woodcutter’s axe. The woodcutter jumped up
7. (happy) and said，“This is my axe. Thank you very much!”
At the end of the story, the goddess was very pleased with the woodcutter’s honesty. He just wanted 8. he deserved So she decided 9. (give) both the gold and silver axe to him. The woodcutter sold the axes, and 10. (become) a rich man.
The moral of this story is that honesty is the best policy.
