阅读下面材料，在空白处填入适当的内容(不多于3个单词)或括号内单词的正确形式。
The truth 1. trees are vital to our life is not a secret. They provide us with food, wood and most 2. (important), oxygen. Now there is one more thing we can add to this list—blocking out harmful bacteria from water.
The discovery 3. (make) by a team 4. (consist) of scientists from the Massachusetts Institute of Technology (MIT) and high school students 5. were seeking a natural water filter—one that would help communities in developing countries that do not have 6. (accessible) to modern water filter systems.
The 7. (research), led by Professor Rohit Karnik, decided to turn to trees for help because they could allow liquid to flow through, while blocking out air bubbles.
They began by cutting 1.5-inch-wide sections of tree bark from the branches of a white pine tree. The people related then tested the wood’s filtering ability by pouring water containing red dye particles of different sizes through. 8. their amazement, they found that it was effective in trapping all the articles. 9. (encourage), the team conducted 10. experiment, this time with water that contained bacteria. Sure enough, the sapwood held back 99% of the bacteria, allowing only 1% to flow through.
阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项。完形填空（共20小题；每小题1.5分，满分30分）
I think I’m one of the luckiest people in the world because of the time I’m able to spend with young people who are not afraid to show their excitement and zest for life. , I would prefer a person with passion and enthusiasm to a person with and talent any day of the week. You can teach and develop skills, you cannot develop a love of life and an optimistic attitude. These are of a person and appear at all times during work or play. Furthermore, they are traits that one is born with and they will never them.
As a and an Independent Education and Career Planning Advisor, I too many children and young adults who are on a road to despair unless someone can find a way to change their attitude towards and indeed life itself!
, society has turned out too many children and young that are unwilling to put much or thought into their work. Whenever I come across such people— or old, I’m reminded of a boy who went with his mother on a blueberry picking hike into the . The boy filled his mostly with moss(苔藓) and then covered the moss with a thin layer of blueberries so that it looked . But the next morning, he found the blueberry pie which his mother for him was moss.
So , whether you are in school or , if you have enthusiasm and if you are to put in consistent effort along with passion, you will receive the . If, on the other hand, you are and prefer to take short-cuts, you should not expect to achieve the same results.
1.A. Obviously B. Personally C. Luckily D. Quickly
2.A. skills B. ideas C. kindness D. courage
3.A. or B. for C. but D. if
4.A. choices B. requests C. appearances D. characters
5.A. use B. deserve C. lose D. cherish
6.A. journalist B. doctor C. colleague D. teacher
7.A. search for B. come across C. care aboutD. depend on
8.A. learning B. donating C. speaking D. greeting
9.A. Eventually B. Unfortunately C. Hopefully D. Perfectly
10.A. equipment B. information C. effort D. possession
11.A. innocentB. young C. poor D. stupid
12.A. woods B. corner C. park D. market
13.A. mouth B. pan C. basketball D. hand
14.A. delicious B. beautiful C. clean D. full
15.A. collected B. baked C. kept D. bought
16.A. promise B. guess C. remember D. look
17.A. in danger B. in distance C. in hospital D. at work
18.A. willing B. confident C. proud D. careful
19.A. crop B. trust C. votes D. rewards
20.A. lazy B. busy C. curious D. stubborn
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Housework not good exercise, says study
1. It even said that people who did the most housework were usually the most overweight. 2. The contribution of domestic physical activity to meeting current recommendations for health. It questions whether activities like do-it-yourself, gardening and housework are good exercise. 3. but there is a danger that people incorrectly think housework is proper exercise.
A total of 4,563 adults took a survey about their weekly physical activity. 4. Researcher Professor Murphy said any physical activity should increase the amount of calories burnt. 5. She said housework was “inversely related to leanness”. She said this suggested that either people overestimate how hard housework was an exercise, or they eat too much because they think they have lost lots of calories doing household chores.
A. However, her study found the opposite.
B. People who do housework usually eat more.
C. A new study says housework is not the quality exercise many people think it is.
D. The research showed that people who included housework as exercise tended to be heavier.
E. The study is called Does “doing housework keep you healthy” ?
F. They think doing exercise is of great benefit to healthy.
G. It says any activity is better than none.
A sick little girl is being kept alive thanks to her best friend — a dog who carries her oxygen tank on his back. Alida’s faithful dog companion Mr Gibbs has been specially trained to shepherd the three-year-old, who breathes through a tube most of the time. He follows her closely as she plays in her family’s ten-acre land in Louisville, uses the slide or even rides her bike.
Alida was diagnosed with neuroendocrine hyperplasia of infancy（NEHI）when she was just eight months old. Her rare condition has just eight hundred documented sufferers throughout the world, and causes diseased pieces of the lungs to filter oxygen through extra layers of cells, making it hard or almost impossible to breathe. For Alida and her parents, it meant that even a walk in the park was very difficult because oxygen equipment was too heavy for the youngster to be able to carry herself. As parents, they wanted to do something to help their daughter survive despite having a tube following her all the time. The couple found out about “service dogs” from a TV program and realized an animal trained to help the blind could be trained to help Alida. They finally found help in the shape of golden doodle—a retriever crossed with a poodle-dog Mr Gibbs. Now thanks to trainer Ashleigh Kinsley—Alida and Mr Gibbs love nothing more than playing and running around together with the dog acting as Alida’s life saver.
1.What is Mr Gibbs?
A. A pet dog. B. A policeman.
C. A doctor. D. A firefighter.
2. When did the doctor know Alida caught the disease?
A. At her birth.
B. At the age of eight.
C. Before she was one year old.
D. When she was three years old.
3. The underlined part “the couple” in paragraph 3 refers to _______.
A. Alida’s classmates B. Alida’s parents
C. Alida’s doctors D. Alida’s pets
4.How did Alida keep alive?
A. By training her dog.
B. By staying with her parents.
C. By playing with her fellows.
D. By breathing through a tube.
It was reported last week that developers could take photos from Apple mobile and Google Android devices without the phone owners knowing that the images were being taken. In Apple’s case, developers can also obtain the location information for each photo.
Senator(参议员) Charles Schumer said in a telephone interview that his office had spoken with officials at both Apple and Google on Monday.
“We asked them if they could find a way on their own to prevent Apple from having access to private information,” Mr. Schumer said. “They were friendly and open to the idea that this ought to be changed.”
On Sunday, Mr. Schumer said that he planned to send a letter to the Federal Trade Commission asking the agency to investigate Apple and Google after the privacy concerns came to light. Claudia Bourne Farrell, an F.T.C. spokeswoman, said the agency had received the letter but she could not comment further.
“It worries people to think that one’s personal photos, address book, and who knows what else can be obtained and even posted online without permission,” Mr. Schumer wrote in his letter to the F. T.C. “If the technology exists to open the door to this kind of privacy invasion, then surely technology exists to close it, and that’s exactly what must happen.”
Mr. Schumer said if Apple and Google could not come to an agreement to fix the problem, then he would be forced to take the issue further.
He said other companies had been willing to work with his office to fix issues. “I’m optimistic that we can get this changed without any regulation,” he said. “If it’s not changed, then we’ll turn to the F.T.C., and if that doesn’t work then we’ll consider legislative approach.”
The F.T.C. has warned companies to try to be more vigilant(警醒的) in their efforts to protect consumers when it comes to privacy.
1.The senators spoke with officials at both Apple and Google_______.
A. to urge them not to invade consumers’ privacy.
B. to discuss whether it is illegal to have access to private information.
C. to stop them from developing the technology of taking photos.
D. to keep them from obtaining the location information for each photo.
2.Which of the following statements is True?
A. Privacy invasion from Apple has existed for a long time.
B. Mr. Schumer takes the privacy concerns caused by Apple and Google seriously.
C. Privacy invasion from Google has existed for a long time.
D. Apple and Google have decided to make a change.
3. Mr. Schumer’s letter to the F.T.C. mainly shows that the technology to open the door to privacy invasion_______.
A. causes privacy invasion to happen frequently.
B. can be used if permitted.
C. causes people to worry about the safety of their personal information.
D. causes personal information to be posted online without permission.
4.Where can we read about the passage?
A. In a newspaper. B. In a magazine.
C. In a science report. D. In a textbook.
Besides containing attractive flowers, trees and other plants that beautify the community, ecofriendly rain gardens are healthy for the environment and the people living and working nearby.
A rain garden is not very different from a traditional garden. It is just a far more ecofriendly garden. Usually it is built lower than the ground. Rain gardens make smart use of rain and storm water by temporarily holding water from rain and storms and letting it soak(浸入)slowly into the ground before it runs into streams or enters the public drinking water supply.
Thus, a rain garden keeps the water, allowing it to be used as needed by plants in the rain garden, rather than flowing immediately into nearby streams and going unused. The water will soak slowly into the ground within a day or two. This creates an advantage that the rain garden does not allow mosquitoes to breed. This is a simple, attractive, and ecofriendly “green” way to treat storm water.
What’s more, planting a rain garden helps reduce pollution and improve the environment. Without using expensive machinery and chemicals, rain gardens remove harmful chemicals in the rainwater and cut down on the amount of pollution reaching streams and rivers by up to 30%.
Native plants are recommended for rain gardens because they are more used to the local climate, soil, and water conditions. They may attract local wildlife such as native birds. Water your rain garden immediately after planting and once a week, unless you have had at least an inch of rain during the week. Once native plants establish the necessary root system, they will require little care.
Often, local governments and private businesses develop large rain gardens in their yards and in public parks as a way to improve the environment and solve flooding problems. However, you don’t need to be a professionally environmental engineer to create a rain garden. As long as you’re ecoconscious homeowners, you can help the environment by building smaller rain gardens in your yards.
1.Which of the following is NOT true for the function of rain gardens?
A. They are good for living conditions.
B. They increase pollution.
C. They can beautify the community.
D. They improve the environment.
2. Which of the following is the ecofriendly function of rain gardens discussed in Paragraph 4 ?
A. They can help reduce the pollution problem.
B. They can keep the rain and storm water.
C. They can be healthy for the people around.
D. They can make the environment more beautiful.
3.One of the main reasons why native plants are recommended is that .
A. they cost less and are much easier to get
B. they may attract local wildlife to come
C. they require little care from the local gardener
D. they are more used to the local growing conditions
4.What do we know about rain gardens?
A. They need little water after all the plants are planted.
B. They may attract local birds and change the local climate.
C. They usually need at least an inch of rainwater a week.
D. They may reduce the water pollution problem by 70%.
