A second powerful quake in less than three we...

A second powerful quake in less than three weeks spread panic in the Himalayan country,

_______ buildings and left 66 dead.

A.brought in　　　　　　 B.brought down

C.brought about　　　　 D.brought out

高三英语单项填空中等难度题查看答案及解析

Food picked up just a few seconds after being dropped is less likely to contain bacteria than if it is left for longer periods of time, according to the findings of research carried out at Aston University's School of Life and Health Sciences. The findings suggest there may be some scientific basis to the '5 second rule'　 --- the belief about it being fine to eat food that has only had contact with the floor for five seconds or less. Although people have long followed the 5 second rule, until now it was unclear whether it actually helped.

The study, undertaken by final year Biology students and led by Anthony Hilton, Professor of Microbiology at Aston University, monitored the transfer of the common bacteria from a variety of indoor floor types such as carpet, cement floor to toast, pasta, biscuit and a sticky sweet when contact was made from 3 to 30 seconds. The results showed that:　 Time is a significant factor in the transfer of bacteria from a floor surface to a piece of food; and the type of flooring the food has been dropped on has an effect, with bacteria least likely to transfer from carpeted surfaces and most likely to transfer from cement flooring　 surfaces to moist foods making contact for more than 5 seconds. Professor Hilton said: "Consuming food dropped on the floor still carries an infection risk as it very much depends on which bacteria are present on the floor at the time.”

The Aston team also carried out a survey of the number of people who employ the five-second rule. The survey showed that:　　 87% of people surveyed said they would eat food dropped on the floor, or already have done so. 55% of those that would, or have, eaten food dropped in the floor are women.　 81% of the women who would eat food from the floor would follow the 5 second rule. Professor Hilton added: "Our study showed surprisingly that a large majority of people are happy to consume dropped food, with women the most likely to do so. But they are also more likely to follow the 5 second rule, which our research has shown to be much more than an old wives tail."

1. Eating food dropped on the floor still carries an infection risk because it relies on________ at that time.

A. the type of bacteria　　　　　 B. the carpet

C. the cement floor　　　　　　　　 D. the surface of table

2.The passage is developed probably by __________.

A. time　　　　 B. space　　　　 C. contrast　　 D. example

3.How did Professor Hilton feel after analyzing how many people chose to eat dropped food?

A. Satisfied　　　　 B. Astonished

C. Puzzled　　　　 　 D. Upset

4.What is the main idea of this passage?

A. The food which is dropped on the floor can be eaten safely.

B. The bacteria have no negative effect on the safety of food.

C. A research on the safety of food dropped on the floor is undertaken.

D. People surveyed in the research are willing to accept the idea.

高三英语阅读理解中等难度题查看答案及解析

It takes less than six seconds to leave a first impression. It is said that we ought not judge a book by its cover, but come on, isn’t it the color, the design, the layout, and the title that draw us to pick up a book we’ve never heard of before? Notice what your assumptions are about a person when you are first introduced to her or him.

Something that most of us don’t take notice of is how we stand or walk. Let’s say you are going for a job interview. Within seconds you have already said a lot about yourself by the way you walk. The majority of us walk around everyday without paying any attention to what we are saying even though we are not uttering a word. There is a lot that can be said about body language from the clothes you wear to the gestures you make.

I took notice of this topic recently as I recalled something about changing my posture to improve my level of confidence. I was about to venture on a new project, which would take me out of my comfort zone. My gremlins (小精灵) were having a field day with me uttering all kinds of reasons why I couldn’t do a good job with this new opportunity. I tucked in my tummy (收缩肚子) , put my shoulders back , held my head high , and took a walk. Soon thereafter, I felt so much better. I approached the project with new possibility. Wow, what a difference ! Try it !

The ability to capture your audience when you walk into a room is sure to start you off on the right foot when going on an interview. Non-verbal signals have five times the impact of verbal (言语的)signals. So you can count on losing your audience when you walk in with head down dragging your feet regardless how much you try to change it.

1.In the first paragraph the author intends to tell us ________ .

2.The author approached his project with new possibility after ________ .

3.According to the author , when we go for a job interview , we ________ .

4.The author probably believes that ________ .

5.What is mainly talked about in the passage?

高三英语阅读理解困难题查看答案及解析

The 8.0-magnitude quake，centered in Wenchuan County，________more than 69000 people dead．

A．left    B．leaving    C．to leave   D．having left

高三英语单项填空中等难度题查看答案及解析

The 8.0-magnitude quake，centered in Wenchuan County，________more than 69000 people dead．

高三英语单项填空简单题查看答案及解析

New research suggests that cutting daily sitting time to less than three hours might extend your life by two years.

“Humans were designed to move. But modern lifestyles and office jobs rarely encourage us to walk around,” says Peter Katzmarzyk, an expert at the University of Louisiana.

“Sitting is common in our lives today. We sit while we’re driving, eating and watching TV. And many of us sit for many hours at work.” Katzmarzyk said.

“We can’t throw away physical activity. It’s extremely important. We have 60 years of researchers showing us that.” Katzmarzyk said.

Katzmarzyk and other researchers are trying to discover how sitting all day affext our lifespans（寿命）.

“This is a relatively new area of study…Studies that have assessed the relationship between sitting and death or television viewing and death have been very rare in the last four or five years,” said Katzmarzyk.

Katzmarzyk and his colleagues analyzed data from these studies, which involved almost 167,000 adults. Then they turned to a government-run survey of Americans to find out exactly how much time people spend sitting and watching.

Not only did the team find that U.S. citizens could live longer by sitting less, they found that cutting TV time to less than two hours a day could add an extra 1.4 years to their lives.

People who’ve spent half their waking lives sitting down might well ask, “Is it ever too late to make a change?”

“We would say ‘No. It’s never too late.’ Physical activity is good for you at every age.” Katzmarzyk said.

Katzmarzyk says studying this problem has inspired his team to make a few changes in their own lives. They recommend a few simple changes: frequently getting up from your desk, taking walks at lunch time, and instead of e-mailing colleagues, walking over to their offices and talking face-to-face——all activities that can be enjoyable as well as life-extending.

1.Peter Katzmarzyk seems to believe that _____.

A. we should not sit for a long time

B. most people like to sit most of the time

C. office jobs encourage us to walk a lot

D. modern lifestyles are good for our health

2.The underlined word “that” in paragraph 4 probably refers to _____.

A. taking physical exercise is important

B. many researches should be carried out

C. we should exercise during working hours

D. people should focus on their health at work

3.Why did Katzmarzyk and his colleagues turn to a government-run survey?

A. To collect information for the government

B. To know how long people sit and watch TV

C. To find what citizens do in their spare time’

D. To discover how sitting for long affects their lives

4.The best title of the text would be _____.

A. What Is the Healthiest Lifestyle？

B. Sitting for a Long Time Is Bad for Us

C. Study Suggests Sitting Less Can Extend Life

D. It Is Never Too Late to Change Our Way of Life

高三英语阅读理解中等难度题查看答案及解析

Older women who walk a little over three kilometers each day might live longer than less active women of the same age, a new study suggests.

Many Americans hoping to stay healthy set a daily goal of 10, 000 steps, or about eight kilometers. They often have this goal because they are wearing electronic devices which set that target, note researchers in the United States. Their findings appeared recently in the publication JAMA Internal Medicine.

But it is not clear how much intensity(强度)or speed matter when counting the health benefits of every step, the researchers write. They add that 10,000 steps per day might not be the right goal for everyone.

For the study, researchers observed 17,000 women, all in their early 70s. They asked the women to wear accelerometers for at least four days. Accelerometers are small devices that measure the number of steps and the intensity of movement. The researchers followed up with the women much later, around 4. 3 years later, on average. Since the beginning of the study, 504 women had died. Compared to women who took no more than 2, 718 steps daily, the women who took at least 4,363 steps per day were 41 percent less likely to die.

“Even a modest amount of steps is associated with lower death rates, "said I-Min Lee, the lead writer of a report on the study. "The rate of stepping did not matter in these older women: it was the number of steps that mattered.

The study had a few limitations. For example, the researchers only measured women’s movements once, at the start of the study period. It is possible that the women’s behaviors changed over time. Still, the results are "good news for older adults who may have difficulty walking at faster paces, "said Keith Diaz, a researcher at Columbia University. He was not involved in the study.

“Any walking is better than nothing, " Diaz said by email. "With even small amounts of walking, your risk of death will be sharply reduced "For those who have difficulty walking, other research shows that any form of aerobic activity provides health benefits," he added. "Swimming, bicycling or any form of activity that is continuous in nature will provide health benefits.

1.What conclusion can we come to from the text?

A.People who walk about 10,000 steps can live longer.

B.10,000 steps per day might be the right goal for people.

C.The more steps one walks per day, the longer life he may live.

D.The number of steps is important for a long life among older women.

2.How is paragraph 4 mainly developed?

A.By giving examples. B.By comparison.

C.By listing statistics. D.By explaining reasons.

3.What can be leaned from what Diaz said?

A.People who walk fast will get more health benefits.

B.If people have a habit of walking, the risk of death will be reduced.

C.People with walking difficulty can not benefit from activities

D.Activities such as swimming and bicycling are not as beneficial as walking.

4.Where is the text most likely from?

A.A medical journal. B.A news report.

C.A magazine about fashion. D.A traveler brochure.

高三英语阅读理解中等难度题查看答案及解析

That is the small house less than 20 square meters, under ______Roof lives a large family of three generations.

A．which            B．whose            C．its               D．that

高三英语单项填空中等难度题查看答案及解析

—Are you finishing your task?

—________. We need no less than three hours more.

A．Far from it　     B．Exactly

C．Not a little　     D．No wonder

高三英语单项填空中等难度题查看答案及解析

If you sleep less than seven hours, you are three times more________to catch a cold．

高三英语单项填空中等难度题查看答案及解析