People who are worried about bad breath often reach for a toothbrush or a gun. But in the future, personal breath monitoring may include far more than fresh breath.
In face, breath is so rich in chemical compounds that fully understanding it has proved challenging. Each breath contains gases like carbon dioxide, the volatile(挥发性的)remains of recent snacks, medicines and even compounds taken in from things like carpeting or various kinds of air pollution. But breath detectors(检测器) can sort out these substances with increasing sensitivity(敏感性)。
Scientists are building electronic sniffers that examine the exhaled(呼气)air for signs of cancer, asthma(哮喘), and other diseases.
“There are clear signatures in the breath for liver(肝)disease, kidney(肾)disease and heart disease. Breath is a rich mixture that can reflect out state of health and disease.” said Dr. Raed Dweik, director of the Cleveland Clinic, adding “Breath analysis is the future of medical testing.”
He and his partners are testing a desktop system called BreathLink for use in rapid identification of diseases. The system is designed to work wherever there is an Internet connection. To use BreathLink, a person breathes into a long tube, and a breath sample is collected and analyzed within the system. Then it can detail chemical concentrations(浓度)of the breath in graphics. Dr. Raed Dweik said, “If you examine patients of asthma, you will find they have higher levels of nitric oxide(一氧化碳) in their exhaled air. It reflects their abnormal symptoms in the lungs.” His tests have reached 85 percent accuracy(精确度)so far in spotting people with some illness.
But some trained dogs, he pointed out, can sniff out cancer with 99 percent accuracy—although without the ability to identify particular compounds the way some detectors can.
“We are getting better and better,” he said. “But whether we will ever approach the accuracy of the dog—we don’t know.”
1.What is the breath detector used for?
A. To find what kind of disease a person has.
B. To identify substances from people’s breath.
C. To help a patient recover from disease.
D. To smell how bad the breath is.
2.In the fifth paragraph, what Dr. Raed Dwik said is meant to______.
A. show how he and his partners treated patients
B. tell why a person has asthma
C. show how sensitive the device is
D. show how to diagnose a patient of asthma
3.It can be inferred that_______
A. brushing teeth can improve one’s bad breath
B. there are leftovers like snacks and medicines in one’s breath
C. one can know exactly about his physical state through the breath
D. breath analysis can be helpful in medical diagnosis
4.What’s the author’s attitude towards the future of breath detectors?
A. Indifferent B. Positive
C. Doubtful. D. Critical.
You may have experienced the frustration(挫败感)of being slapped with a parking fine(罚款)or finding your car held firmly in the place after leaving it parked precariously(不安全的) for a couple of minutes. But now a high-tech car sticker that's designed to be stuck to a car’s windscreen, could help motorists avoid such a situation by allowing a traffic warden(管理员)to get in touch with them.
The TowStop sticker sends a text message to a driver when it is touched by a traffic warden, to allow motorists to send a reply and give them time to move their car immediately. It’s designed to save drivers time and money by giving them a chance to move their car instead of having it towed(拖) away but relies on the good will of traffic wardens. Frankfurt-based IT consultant(顾问), Daniel Kalliontzis, came up with the idea and is raising funds on Indiegogo to put his €54 (£43) sticker into production.
Car owners can buy the sticker and place it inside their car's windscreen, having set it up with important information, such as their phone number. The message will ask them to move their car immediately .The driver could then type a reply for the warden using their smartphone, which will appear on the sticker's screen. They may choose to write something along the lines of back in two minutes in a bid to avoid a fine.
The smart sticker system will rely on the good will of traffic wardens and critically, a German law. The law states: An officer has to choose the most efficient and inexpensive way for the car owner to remove the vehicle. It could be cheaper for the authorities to contact the driver than to tow his car.
1.What is the purpose of the first paragraph?
A. To arouse readers’ interest in the new invention.
B. To tell readers some ways of parking cars.
C. To show drivers how to avoid parking fine.
D. To disclose(揭示)how traffic wardens fine drivers.
2.Daniel Kalliontzis came up with the idea of the slicker so that______.
A. traffic can be smooth
B. drivers can avoid being fined
C. cars can be put in safe places
D. laws can be carried out
3.If traffic warden wants to send a text message to the driver, he should_______.
A. slap the windscreen B. strike the wheel
C. use a smartphone D. touch the sticker
4.From the passage we know that________.
A. a German traffic warden is required to remind car owners to move their cars
B. the TowStop sticker will cost drivers much time and money
C. not many drivers will mind being fined
D. car owners must buy the stickers by law
Asia has many wild places. The following national parks are among the most famous in Asia. People come to visit them from near and far in order to appreciate the unique qualities of the land and everything on it. Have you ever visited any of these Asian national parks?
Jiuzhai Valley National Park, China
The extraordinarily beautiful park is famous for its fascinating blue-green lakes, waterfalls and its unique wildlife. Located in the Minshan Mountain, Sichuan Province, it is a breathtaking park because of its scenery and it is also home to nine Tibetan villages, over 220 bird species as well as a number of endangered animals and plants, such as giant pandas, Sichuan golden monkeys and numerous orchids. This park was also declared a UNESCO World Heritage Site in 1992.
Khao Sok(考索)National Park, Thailand
This extraordinary park is several miles away from Phuket(普吉岛), yet its remoteness(遥远)prevents it from being visited. Even so, it is well worth a visit as scientists have noted that is rainforest stretches are not only longer than those of the Amazon, but also more divers(多样化的). Animals like tigers, Asian elephants, and macaaues make their home here. Everyone who visits the park, however, seems to want to have a look at the amazing Rafflesia, one of the strangest flowering plants on earth; it smells like smelly meat when it blooms.
Nikko(日高)National Park, Japan
It is lovely to visit this park all the year round with its waterfalls and picturesque Lake Chuzenji. And it is especially worth visiting in autumn when the leaves change from green to deep red and orange. Set with UNESCO protected shrines(神坛)and temples, the park is a unique mixture of natural and man-made attractions. With various routes perfect for adventurous hikers, a visit to the Nikko National Park is not to be missed.
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1.What does the underlined word “orchids” probably refer to?
A. Wild animals. B. Endangered flowers.
C. Rare monkeys. D. Tibetan buildings.
2.Compared with Amazon, Khao Sok National Park has______.
A. stranger flower plants
B. More animals
C. more varieties of rainforests
D. more visitors
3.If you’re an adventurous hiker, which park would you probably choose to visit?
A. Jiuzhai Valley National park.
B. Khao Sok National Park.
C. Nikko National Park.
D. Zhangjiajie National Park.
书面表达
某英文杂志正在举办以“Imagine yourself as an interviewer”为主题的征文活动,请你以 为题,写一篇英语短文。
内容包括: 1. 采访的对象 2. 采访的原因 3. 想提的问题
注意: 1. 字数100左右
2. 可以适当增加细节,以使行文连贯
3. 短文中不能出现与本人相关的信息
4. 短文的标题已给出,不计入总数量
A Famous Chinese I Would Like to Interview
____________________________________________________________________________________________
____________________________________________________________________________________________
____________________________________________________________________________________________
阅读下面材料,在空白处填上适当的内容(一个单词)或括号内单词的正确形式。将答案写在答题卡的相应位置。
We high school students do have some growing pains, but we can get rid of them1._____(correct) and wisely. First, some of us are upset about our body style and looks. It’s unnecessary and it’s not important at all. We needn’t care about it. It is one’s inner beauty that2.______ (matter). Second, we sometimes seem to be misunderstood by our teachers, parents and classmates. Faced with this, we can find a proper time to have a heart-to-heart talk with them, trying to remove the misunderstanding. Some of us have fewer friends, I think being open-minded and friendly will do us good. Third, we may fall behind others, 3.________ makes us stressed. Actually we can encourage4._______ to work efficiently, full of5._______(determine). At last, some of us don’t have much pocket money, so they feel unhappy. Isn’t it strange? So long as we have some, that’s enough. And we can learn how to spend money.
完型填空
阅读下面短文,掌握其大意,从题中所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。
When high school started, Becky and I became best friends. We ______ many interests and quickly became inseparable. When high school ended, we both cried because we would attend different colleges in the fall.
Our first term of university life was_______. We had a huge telephone bill and our e-mails were incredibly long. In the second term, l found some new friends wih whom I felt very_______. These were friends with whom I could be myself and _______ out my feelings. I was eager to share my new friends with Becky.
When Becky finally visited me at my school, we were excited. She brought a toy bear as a present and told me about her college life. However, something unexpected happened when I ______ her to my new friends. Her eyes grew dark and l could see the ______ within them. My new friends tried to share their friendship, but Becky seemed ______ to accept it. I didn’t understand why the people l loved most couldn’t love each other.
Becky left. I knew she was not happy. I thought long about what had happened. After many unanswered questions, I understood that she was ______. She saw me with my new friends and regretted that we longer shared the same experience. She saw all the fun l was having ______ her and wished she could be a part of it. She wished she could be in their _ ___.
I wrote a letter to Becky________ she’s always my best friends. I told her everyone had friends from home and friends from school, and all the friends were indeed life’s greatest ________ . Becky wrote me back soon. She was in ______ and felt sorry about what she had done.
I think Becky and I both learn an important lesson from it. _______ can influence our friendship and change the experience we’ve shared. We are now walking on two different paths of life while new friends are special and exciting, old friends are always there, ________ to share their heart and soul, no matter how far apart.
1.A.showed B. shared C. protected D. developed
2.A.hard B. peaceful C. modern D. normal
3.A.anxious B. strange C. familiar D. comfortable
4.A.pour B. make C. figure D. hold
5.A.admitted B. referred C. mentioned D. introduced
6.A.concern B. hurt C. curiosity D. doubt
7.A.unwilling B. cautious C. ashamed D. calm
8.A.aggressive B.jealous C.proud D. discouraged
9.A.without B.from C.for D. acorss
10.A.expectation B.relation C. reception D.position
11.A.recognizing B.explaining C. assuming D. predicting
12.A.achievement B.spirit C.gift D.sign
13.A.sympathy B.confusion C.surprise D.agreement
14.A.Something B. Anything C. Nothing D. Everything
15.A.waiting B. planning C. choosing D. demanding