B
Autism spectrum disorder is a developmental disability. People with autism have trouble communicating and with social skills. The U.S. Centers for Disease Control and Prevention says the person also might repeat some behaviors and not want change in their daily activities. Some people with the condition need a lot of help. Others need less.
CDC officials say autism affects one in every 68 children in the United States. More boys than girls are believed to have the condition. But the number of cases appears to be growing. It is unclear whether the growing number shows a real increase or comes from more knowledge about this disorder.
Symptoms of autism
Common signs of autism include trouble making eye contact and a delay in learning how to speak. Some people with severe autism never learn how to talk. Many people with autism also have difficulty understanding facial expressions and the feelings of others. They also have trouble making friends of the same age.
Doctors have learned how to recognize autism, but much is still unknown about its causes.
Researchers at Harvard University have come closer to finding answers. They found that women exposed to the highest levels of fine particulate air pollution late in their pregnancies are two times more likely to give birth to a child with autism. The findings appeared in Environmental Health Perspectives -- a publication of the National Institute of Environmental Health Sciences.
The study found that the women who were around high levels of fine particulate matter air pollution were at highest risk of having an autistic child. The increased risk of these women was two times that of women who lived in areas with low levels of fine particulate pollution.
The researchers found that the timing of exposure to pollution was important. They found no increased risk of autism in children whose mothers were around high levels of pollution before becoming pregnant. And the study found air pollution does not seem to increase the risk of children developing autism after they are born.
What can pregnant women do?
Mr. Weisskopf says pregnant women should avoid air pollution as much as possible. But he warns that other things may increase the risk of autism spectrum disorder.
"You can avoid being in extremely polluted cities during pregnancy if possible. You can also choose to go running in a park rather than next to a street. But that said, I think also it's very important to recognize that autism spectrum disorders is a very multi-factorial disorder. And there are lots of reasons why risk could be increased."
Autism is believed to result from a combination of environmental and genetic factors.
For now, Marc Weisskopf says researchers are trying to identify the exact substances in air pollution that increase the risk of autism.What can we learn from Paragraph 1________?
| A．people with autism don’t need help |
| B．people with autism have no trouble communicating |
| C．autism is a developmental disability |
| D．people with autism want change in their daily activities |
Which is NOT the Common signs of autism_______?
| A．low level of intelligence |
| B．a delay in learning how to speak |
| C．understanding facial expressions |
| D．making eye contact |
Which is TRUE according to the passage________?
| A．the growing number of cases shows a real increase |
| B．women exposed to high levels of fine particulate air pollution during their pregnancies are more likely to have a child with autism |
| C．high levels of fine particulate air pollution have no effect on autism |
| D．doctors have learned the causes of autism |
What can pregnant women do_______?
| A．they should go running in a street |
| B．they should stop smoking |
| C．they should be in extremely polluted cities during pregnancy |
| D．they should avoid air pollution as much as possible |
What’s the main idea of the passage__________?
| A．what is autism spectrum disorder |
| B．the reasons of autism |
| C．autism and air pollution |
| D．how to treat autism |
Below is a housing guide for students going to London.
University accommodation（住所） office
Many university accommodation offices have their own list of registered landlords (房东). Others also provide information on accommodation agencies and other housing organizations. The advantage of using your university accommodation office is that you can get some support if you have 'a problem. The disadvantage is that they are unlikely to have enough registered landlords to house all their students.
Property papers: Loot and Renting
Loot is an important source (来源) of information about private housing for co-renters. The offers are from private landlords, agencies and individuals looking for other co-renters. They also have a website: www. loot. com. The advantage of using Loot is that there are some excellent bargains. The disadvantage is that there is no quality control over the offers.
Renting is another useful paper. The offers in this paper are mainly from accommodation agencies. Their website is at www. Renting.co. uk.
Accommodation agencies
The majority of rented accommodation in London is probably advertised through accommodation agencies. The advantage of using accommodation agencies is that you will have access to a large number of accommodations. A good agent will listen to your requirements and can save you time in looking for the right accommodation. The disadvantage is that they will make a range of charges to potential renters.
Noticeboards
Around the universities you will find a number of noticeboards where offers of accommodation will be posted. These will either be from landlords or from students. Some universities will also have online noticeboards where students can advertise to other students. Advertisements from students can be an excellent way to find accommodation. However, advertisements from landlords can be problematic.
Word of mouth
Some of the best housing in London is never advertised but is passed on from one group of students to another by word of mouth. It might be that you can find out about good offers from final year students. However, don't suppose that just because you have found out about housing from a friend it is necessarily, going to be better than that found through any other source.
Family
Faced with the very high rents charged in London, some students and their parents will consider buying as an alternative. In some cases this might be a good choice.
1. What is the advantage of using Loot?
A. It has more offers from accommodation agencies than Renting.
B. It gives you personal information about other co-renters.
C. Their website is designed mainly for students.
D. There are some good bargains.
2. A good agent can help you .
A. know more people
B. find cheap accommodation
C. get the right accommodation quickly
D. get free information about mos
t accommodations
3. 
The information passed on by word of mouth is important because .
A. it is better than that found through any other source
B. it helps you find some of the best housing never advertised
C. the final year students always offer better information
D. the landlords have little valuable information
4. For students going to London for the first time, which of the following provides the most reliable information?
A. University accommodation offices.
B. Loot and Renting.
C. Noticeboards.
D. Family.
My family and I lived across the street from Southway Park since I was four years old. Then just last year the city put a chain link fence around the park and started bulldozing (用推土机推平) the trees and grass to make way for a new apartment complex. When I saw the fence and bulldozers, I as
ked myself, "Why don't they just leave it alone?"
Looking back, I think what sentenced the park to oblivion (被遗忘) was the drought (旱灾) we had about four years ago. Up until then, Southway Park was a nice green park with plenty of trees and a public swimming pool. My friends and I rollerskated on the sidewalks, climbed the trees, and swam in the pool all the years I was growing up. The park was almost like my own yard. Then the summer I was fifteen the drought came and things changed.
There had been almost no rain at all that year. The city stopped watering the park grass. Within a few weeks I found myself living across the street from a huge brown desert. Leaves fell off the park trees
, and pretty soon the trees started dying, too. Next, the park swimming pool was closed. The city cut down on the work force that kept the park, and pretty soon it just got too ugly and dirty to enjoy anymore.
As the drought lasted into the fall, the park got worse every month. The rubbish piled up or blew across the brown grass. Soon the only people in the park were beggars and other people down on their luck. People said drugs were being sold or traded there now. The park had gotten scary, and my mother told us kids not to go there anymore.
The drought finally ended and things seemed to get back to normal, that is, everything but the park. It had gotten into such bad shape that the city just let it stay that way. Then about six months ago I heard that the city was going to "redevelop" certain worn-out areas of the city. It turned out that the city had planned to get rid of the park, sell the land and let someone build rows of apartment buildings on it.
The chain-link fencing and the bulldozers did their work. Now we live across the street from six rows of apartment buildings. Each of them is three units high and stretches a block in each direction. The neighborhood has changed without the park. The streets I used to play in are jammed with cars now. Things will never be the same again. Sometimes I wonder, though, what changes another drought would make in the way things are today.
| 1． |
How did the writer feel when he saw the fence and bulldozers.'?
|
| 2． |
Why was the writer told not to go to the park by his mother?
|
| 3． |
According to the writer, what eventually brought about the disappearance of the park?
|
| 4． |
The last sentence of the passage implies that if another drought came,.
|
The term “multitasking” originally referred to a computer's ability to carry out several tasks at one time. For many people, multitasking has become a way of life and even a key to success. In fact, some excellent mental aerobic exercises (大脑训练) involve engaging the brain in two or more challenging activities at a time. Although checking e-mail while talking on a phone and reading the newspaper may be second nature for some people, many times multitasking can make us less productive, rather than more. And studies show that too much multitasking can lead to increased stress, anxiety and memory loss.
In order to multitask, the brain uses an area known as the prefrontal cortex (前额叶脑皮层). Brain scans of volunteers performing multiple tasks together show that as they shift from task to task, this front part of the brain actually takes a moment of rest between tasks. You may have experienced a prefrontal cortex “moment of rest” yourself if you've ever dialed (拨电话) a phone number and suddenly forgotten who you called when the line is answered. What probably occurred is that between the dialing and the answering, your mind shifted to another thought or task, and then took that “moment” to come back. Research has also shown that for many volunteers, job efficiency (效率) declines while multitasking, as compared to when they perform only one task at a time.
Multitasking is easiest when at least one of the tasks is habitual, or requires little thought. Most people don' t find it difficult to eat and read the newspaper at the same time. However, when two or more attention-requiring tasks are attempted at one time, people sometimes make mistakes.
We often don't remember things as well when we're trying to manage several details at the same time. Without mental focus, we may not pay enough attention to new information coming in, so it never makes it into our memory stores. That is one of the main reasons we forget people's names—even sometimes right after they have introduced themselves. Multitasking can also affect our relationships. If someone checks their e-mail while on the phone with a friend, they may come off as absent-minded or disinterested. It can also cause that person to miss or overlook key information being passed on to them.
1. Why are some mental aerobic exercises designed to engage people in multitasking?
A. To make them more productive.
B. To reduce their stress and anxiety.
C. To develop their communication Skills.
D. To help them perform daily tasks more easily.
2. According to Paragraph 2, why
may a person suddenly forget who he has called?
A. He may have his prefrontal cortex temporarily damaged.
B. He is probably interrupted by another task.
C. He is probably not very familiar with the person he has called.
D. He may need a rest between dialing and speaking.
3. People tend to make mistakes when .
A. they perform several challenging tasks at a time
B. new messages are processed one after another
C. their relationships with others are affected
D. the tasks require little thought
4. What is the main idea of the passage?
A. Multitasking has become a way of life.
B. Multitasking often leads to efficiency decline.
C. Multitasking exercises need to be improved.
D. Multitasking enables people to remember things better.
第二部分：阅读理解(第一节20小题。第二节5小题；每小题2分，满分50分)
第一节：阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项，并在答题纸上将该
选项标号涂黑。
When you are little, the whole world feels like a big playground. I was living in Conyers, Georgia the summer it all happened. I
was a second grader, but my best friend Stephanie was only in the first grade. Both of our parents were at work and most of the time they let us go our own way.
It was a hot afternoon and we decided to have an adventure in Stephanie's basement. As I opened the basement door, before us lay the biggest room, full of amazing things like guns, dolls, and old clothes. I ran downstairs, and spotted a red steel can. It was paint. I looked beyond it and there lay even more paint in bright colors like purple, orange, blue and green.
"Stephanie, I just found us a project for the day. Get some paintbrushes. We are fixing to paint. " She screamed with excitement as I told her of my secret plans and immediately we got to work. We gathered all the brushes we could find and moved all of our materials to my yard. There on the road in front of my house, we painted big stripes ( 条纹) of colors across the pavement (人行道). Stripe by stripe, our colors turned into a beautiful rainbow. It was fantastic!
The sun was starting to sink. I saw a car in the distance and jumped up as I recognized the car. It was my mother. I couldn't wait to show her my masterpiece. The car pulled slowly into the driveway and from the look on my mother's face, I could tell that I was in deep trouble.
My mother shut the ear door and walked towards me. Her eyes glaring, she shouted, "What in the world were you thinking? I understood when you made castles out of leaves, and climbed the neighbors' trees, but this! Come inside right now !" I stood there glaring back at her for a minute, angry because she had insulted (侮辱) my art.
"Now go clean it up!" Mother and I began cleaning the road. Tears ran down my cheeks as I saw my beautiful rainbow turn into black cement.
Though years have now passed, I still wonder where my rainbow has gone. I wonder if, maybe when I get older, I can find my rainbow and never have to brush it away. I guess we all need some sort of rainbow to brighten our lives from time to time and to keep our hopes and dreams colorful.
1. What did the writer want to do when his mother came home?
A. To introduce Stephanie to her. B. To prevent her from seeing his painting.
C. To put the materials back in the yard. D. To show his artwork to her.
2. In his mother's eyes, the writer __ .
A. was a born artist B. always caused trouble
C. was a problem solver D. worked very hard
3. The underlined word "rainbow" in the last paragraph refers to __ .
A. the rainbow in the skyB. the stripes on the pavement
C. something imaginative and fun D. important lessons learned in childhood
4. It can be learned from the passage that parents should .
A. encourage children to paint
B. value friendship among children
C. discover the hidden talent in children
D. protect rather than destroy children's dreams
I needed to buy a digital camera, one that was simply good at taking good snaps (快照), maybe occasionally for magazines. Being the cautious type, I fancied a reliable brand. So I went on the net, spent 15 minutes reading product reviews on good websites, wrote down the names of three top recommendations and headed for my nearest big friendly camera store. There in the cupboard was one of the cameras on my list. And it was on special offer. Oh joy. I pointed at it and asked an assistant, "Can I have one of those?" He looked perturbed (不安)."Do you want to try it first?" he said. It didn't quite sound like a question. "Do I need to?" I replied. "There's nothing wrong with it?" This made him look a bit insulted and I started to feel bad. "No, no. But you should try it," he said encouragingly." Compare it with the others. "
I looked across at the others: shelves of similar cameras placed along the wall, offering a wide range of slightly different prices and discounts, with each company selling a range of models based around the same basic box. With so many models to choose from, it seemed that I would have to spend hours weighing X against Y, always trying to take Z and possibly H into account at the same time. But when I had finished, I would still have only the same two certainties that I had entered the store with: first, soon after I carried my new camera out of the shop, it would be worth half what I paid for it; and second, my wonderful camera would very quickly be replaced by a new model.
But something in the human soul whispers that you can beat these traps by making the right choice, the clever choice, the wise choice. In the end, I agreed to try the model I had chosen. The assistant seemed a sincere man. So I let him take out my chosen
camera from the cupboard, show how it took excellent pictures of my fellow shoppers... and when he started to introduce the special features, I interrupted to ask whether I needed to buy a carry-case and a memory card as well.
Why do we think that new options (选择) still offer us anything new? Perhaps it is because they offer an opportunity to avoid facing the fact that our real choices in this culture are far more limited than we would like to imagine.
| 1． |
The shop assistant insisted that the writer should.
|
| 2． |
What does the writer mean by "it would be worth half what I paid for it" (Paragraph 2) ?
|
| 3． |
The writer decided to try the model he had chosen because he.
|
| 4． |
It can be inferred from the passage that in the writer's opinion,
|