For years scientists have been worried about the effects of air pollution on the earth’s natural conditions. Some believe the air inside many houses may be more dangerous than the air outside. It may be one hundred times worse.
Indoor air pollution can cause a person to feel tired, to suffer eye pain, headache and other problems. Some pollutants（污染物）can cause breathing disorders, diseases of blood and even cancer. Most scientists agree that every modern house has some kind of indoor pollution.
People have paid more attention to the problem now. It is true that when builders began making houses and offices they did not waste energy. To do this they build buildings that limited the flow of air between inside and outside. They also began using man-made building materials. These materials are now known to let out harmful gases.
As the problem became more serious, scientists began searching for a way to deal with it. They discovered a natural pollution control system for building—green plants. Scientists do not really know how plants control air pollution. They believe that a plant’s leaves absorb（吸收）or take in the pollutants. In exchange the plant lets out oxygen through its leaves and tiny organizations on its roots. Scientists suggest that all buildings should have one large plant or several small plants inside for every nine square meters of space. Studies of different plants show that each absorbs different chemicals. So the most effective way to clean the air is to use different kinds of plants. Having green plants inside your house can make it a prettier and healthier place.
1.Generally speaking, indoor air pollution may be more harmful than the air outside because .
A．indoor air pollution can often make people seriously ill
B．man-made building materials give off dangerous gases
C．there may be more harmful gases outside the buildings
D．the air indoors is polluted, which is very harmful
2.Some kind of indoor pollution can be found in .
A．every modern house B．every old house
C．all kinds of houses D．all kinds of offices
3.The indoor air pollution is caused by .
A．the limit of the flow of air between inside and outside
B．the building way that the builders want to save energy
C．the building things that are made of man-made materials
D．the man-made building materials and the limit of air-flow
4.The reason why we should use different kinds of plants to clean the air is that
A．plants can let out all kinds of pollutants indoors
B．plants may take in more oxygen （氧气）which people need
C．plants can absorb all kinds of harmful indoor chemicals
D．plants can make our houses prettier and more healthy
难度: 中等查看答案及解析
In 1978, I was 18 and was working as a nurse in a small town about 270 km away from Sydney, Australia. I was looking forward to having five days off from duty. Unfortunately, the only one train a day back to my home in Sydney had already left. So I thought I’d hitch a ride (搭便车).
I waited by the side of the highway for three hours but no one stopped for me. Finally, a man walked over and introduced himself as Gordon. He said that although he couldn’t give me a lift, I should come back to his house for lunch. He noticed me standing for hours in the November heat and thought I must be hungry. I was doubtful as a young girl but he assured （使…放心）me I was safe, and he also offered to help me find a lift home afterwards. When we arrived at his house, he made us sandwiches. After lunch, he helped me find a lift home.
Twenty-five years later, in 2003, while I was driving to a nearby town one day, I saw an elderly man standing in the glaring heat, trying to hitch a ride. I thought it was another chance to repay someone for the favour I’d been given decades earlier. I pulled over and picked him up. I made him comfortable on the back seat and offered him some water.
After a few moments of small talk, the man said to me, “You haven’t changed a bit, even your red hair is still the same.”
I couldn’t remember where I’d met him. He then told me he was the man who had given me lunch and helped me find a lift all those years ago. It was Gordon.
1.The author had to hitch a ride one day in 1978 because .
A. her work delayed her trip to Sydney
B. she was going home for her holidays
C. the town was far away from Sydney
D. she missed the only train back home
2.Which of the following did Gordon do according to Paragraph 2?
A. He helped the girl find a ride.
B. He gave the girl a ride back home.
C. He bought sandwiches for the girl.
D. He watched the girl for three hours.
3.The reason why the author offered a lift to the elderly man was that .
A. she realized he was Gordon
B. she had known him for decades
C. she was going to the nearby town
D. she wanted to repay the favour she once got
4.What does the author want to tell the readers through the story?
A. Giving sometimes produces nice results.
B. Those who give rides will be rapid.
C. Good manners bring about happiness.
D. People should offer free rides to others.
难度: 中等查看答案及解析
Most of us are used to seasons. Each year, spring follows winter, which follows autumn, which follows summer, which follows spring. And winter is colder than summer. But the earth goes through temperature cycles over much longer periods than those that we experience.
Between 65,000 and 35,000 years ago, the planet was much colder than it is now. During that time the temperature also changed a lot, with periods of warming and cooling. Ice melted during the warm periods, which made sea levels rise. Water froze again during the cold periods.
A new study from Switzerland sheds light on where ice sheets melted during the ice age.
It now seems that the ice melted at both ends of the earth, rather than just in either northern or southern areas. This surprised the researchers from the University of Bern.
Scientists have long assumed（认为） that most of the ice that melted was in the Northern hemisphere(半球) during the 30,000-year long ice age. That belief was held because the North Pole is surrounded by land, while the South Pole is surrounded by the Antarctic Ocean. It is easier for ice sheets to grow on land. If surrounded by sea the ice can easily just slip into the ocean instead of building up.
The researchers used a computer model to look at ways the ice could melt and how it might affect sea levels. They compared these results to evidence of how temperatures and currents actually changed during that time.
The model showed that if it was only in the Northern hemisphere that ice melted, there would have been a bigger impact(影响) on ocean currents(洋流) and sea temperatures than what actually happened. Studies suggest that melting just in the Southern hemisphere would have been impossible, too.
The only reasonable conclusion, the scientists could make, was that ice melted equally in the North and the South.
It is still a mystery as to what caused the temperature changes that caused the ice to melt.
1.The underlined phrase “sheds light on” (in paragraph 3) can be replaced by .
A. throws doubts on
B. beats down on
C. makes it clear
D. makes light of
2.We can infer from the passage .
A. the ice can easily just slip into the ocean
B. melting just in the Northern hemisphere would have been impossible
C. volcanoes caused the ice to melt
D. researchers often use the computer models help their research work.
3.The scientists are not sure .
A. what caused the temperature changes
B. where ice sheets melted during the ice age
C. how long the ice age lasted
D. what the earth is made up of
4.Which of the following is the best title for the passage?
A. A computer model
B. Studies show ice melted equally in the North and the South during the ice age
C. Most of the ice melted in the Northern hemisphere during the 30,000-year long ice age.
D. A survey result
难度: 中等查看答案及解析
Why do you need British Accent Training? With the growth in the number of employees from Egypt, Spain and China, organizations need to ensure that their workers are able to communicate effectively with customers and colleagues alike.
First Language Influence (FLI) can have a great effect on an employee’s accent. British Accent Training from Communicaid will help your overseas workers decrease the influence of their first language.
Whether through online training courses or face- to- face classes, Communicaid offers suitable training solutions for your organisation’s international business.
A Communicaid’s British Accent Training course will provide your workers with the ability to :
---increase their customer experience and satisfaction,
---communicate more effectively with customers and colleagues by decreasing first language influenced accent,
---strengthen relationships with customers and colleagues through more successful communication.
Course content
All Communicaid’s British Accent Training courses are designed to meet the specific needs of our clients depending on their specific situations.
Generally, a British Accent Training course includes:
---rhythm and stress patterns,
---pausing and breathing,
---relationship between spelling and pronunciation,
---accent familiarisation and listening practice.
Ways to learn
Training can be received worldwide through either face-to-face classes or one of our many online learning methods. Using a combination of published materials and those offered only by Communicaid, we design and offer programmes that will meet the need of our clients.
Our trainers
All Communicaid’s British Accent course trainers are native speakers with at least 3 years’ professional training experience in the field. A client’s British Accent trainer will be decided according to his goals and areas of focus.
1.We can learn from the article that Communicaid is a company that .
A .sells books
B .designs ads
C .offers communication skill training
D .offers language training
2.Who are the target readers of the article?
A .Overseas students.
B. Overseas workers.
C. Bosses employing workers whose first language is not English.
D. People whose partners come from a non- English-speaking country.
3.The article was written mainly to .
A .attract people to attend Communicaid’s courses
B .introduce the history of the company Commuicaid
C .give instructions on English pronunciation
D .tell the readers the importance of the British accent
难度: 中等查看答案及解析
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。
Why Exercise is Cool?
1. Exercise Strengthens Muscles
Did you ever do a push-up or swing across the monkey bars at the playground? 1. By using your muscles to do powerful things, you can make them stronger. For older teens and adults, this kind of workout can make muscles bigger, too.
2. 2.
Can you touch your toes easily without yelling ouch? Most kids are pretty flexible, which means that they can bend and stretch their bodies without much trouble. Being flexible is having “full range of motion,” which means you can move your arms and legs freely without feeling tightness or pain.
3. Exercise Keeps the Balance
3. Your body needs a certain amount of calories every day just to function, breathe, walk around, and do all the basic stuff. 4. If you’re not very active, your body won’t need as many calories.
Whatever your calorie need is, if you eat enough to meet that need, your body weight will stay about the same. If you eat more calories than your body needs, it may be stored as extra fat.
4. Exercise Makes You Feel Good
It feels good to have a strong, flexible body that can do all the activities you enjoy — like running, jumping, and playing with your friends. It’s also fun to be good at something, like scoring a basket, hitting a home run, or perfecting a dive.
But you may not know that exercising can actually put you in a better mood. 5. It’s just another reason why exercise is cool!
A. So you want to do some aerobic (有氧的) exercise right now?
B. Food gives your body fuel in the form of calories, which are a kind of energy.
C. When you exercise, your brain releases a chemical, which may make you feel happier.
D. Those are exercises that can build strength.
E. Exercise Makes You Flexible
F. Exercise Makes Your Heart Happy
G. But if you’re active, your body needs an extra measure of calories or energy
难度: 中等查看答案及解析
At seventeen, Shaun should be enjoying the time of his life. Instead, he’s using time he has left to a message. “Live life to the because you never know what’s going to ,” Shaun says in a video he sent online.
Born with a disease Shaun spent his childhood in and out of . He’s had almost 1000 operations in total, and his first heart transplant just eight-year-old.
He had another transplant at thirteen, but his body didn’t it. “It could be six months, could be twelve months—don’t know. It’s for me as a father that Shaun will close his eyes and not up again. One day that will be it,” his dad Cameron said.
“I have the heart rejection where the arteries became narrow, and it’s difficult for the blood to ,” Shaun explained. So why did he make the video which has so many? “I made it to let my Face Book friends know what was going on,” Shaun said. “It was hard to make the video, but it’s harder to watch the video. It that you have heart rejection and you will die soon.”
Shaun’s You Tube video has gone , with more than 50000 hits already. People who were inspired by his message, called into offering . His airfares to Disneyland were for by a kind person. Another offered to buy his Disneyland tickets.
“There’ll be a lot more to come,” said Cameron, who is looking for a to turn his son’s story into a book. Life may be but Shaun will live it to the fullest, each day as a gift.
1.A. pay B. spend C. share D. gain
2.A. fullest B. worst C. hardest D. longest
3.A. happen B. end C. fail D. serve
4.A. lung B. heart C. head D. stomach
5.A. factory B. hotel C. restaurant D. hospital
6.A. in B. at C. over D. with
7.A. question B. operation C. relation D. education
8.A. need B. believe C. accept D. refuse
9.A. quick B. slow C. hard D. good
10.A. wake B. cut C. call D. break
11.A. turn out B. get through C. block out D. dress up
12.A. frightened B. confused C. satisfied D. touched
13.A. persuades B. reminds C. warns D. asks
14.A. rare B. good C. sad D. popular
15.A. books B. gifts C. thanks D. prizes
16.A. cared B. paid C. used D. devoted
17.A. comfort B. explanation C. support D. rescue
18.A. worker B. writer C. doctor D. cleaner
19.A. curing B. fading C. expanding D. remaining
20.A. teaching B. killing C. helping D. enjoying
难度: 中等查看答案及解析
Do you like travelling? Staying 1. (health) while 2. (travel) can help to ensure your trip is a happy and enjoyable one. 3. you are travelling abroad, here are the tips you need to make your trip much 4. (easy):
Make sure you have got signed passport(护照) and visas. Also, before you go, fill in the emergency information page of your passport! Make two copies of your passport identification page. This will help a lot if your passport 5. (steal). Leave one copy at home with friends or relatives. Carry the other 6. you in a separate place from your passport.
Read the Public Announcements or Travel Warnings for the countries you plan to visit. Get yourself familiar with local laws and customs of the countries to 7. you are travelling.
Leave a copy of your itinerary(旅行日程) with family or friends at home so that you can be contacted in case of an emergency.
Do not accept packages from strangers. Do not carry too much money or 8. (necessary) credit cards. If we make enough 9. (prepare), we will succeed. Have 10. good time!
难度: 中等查看答案及解析
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：在却此处加一个漏字符号（∧），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：在错的词下面画一横线，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11处起）不计分。
Last weekend we went mountain-climbing.
1.Even the heavy rain in the morning could not prevent us go.
2.Setting off very early, we went along an extreme narrow road, all in high spirits.
3.On each side of the road had green fields
4.and some farm house.
5.We could hear the sound of the rain and our footsteps mixing with our laughter.
6.At noon we reached the top of the mountain.
7.That surprised us most there was the beauty of scenes.
8.After having a short rest there and share the food we had brought, we started going down. It had rained evenharder.
9.We were wet to the skin,
10.and we still sang and laughed happily.
难度: 中等查看答案及解析
近年来“汉语热（Chinese fever）”在全球异常火爆，到目前已有3000万外国人在学汉语，在一次英语课上，老师让学生讨论“汉语热”这种现象，讨论的结果主要包括以下三方面：
中国拥有悠久的历史，使汉语更丰富，更具吸引力；
中国的经济发展迅速，很多想进入中国市场的海外商人需要了解中国；
国际交往日益频繁，中国已成为其他国家关注的中心。
请你用英语写一篇100字左右的短文，总结这次会议上讨论的结果，可适当发挥。
难度: 中等查看答案及解析