The Healthy Habits Survey (调查) shows that only about one third of American seniors have correct habits. Here are some findings and expert advice.
1. How many times did you brush your teeth yesterday?
Finding: A full 33% of seniors brush their teeth only once a day.
Step: Remove the 300 types of bacteria in your mouth each morning with a battery-operated toothbrush. Brush gently for 2 minutes, at least twice a day.
2. How many times did you wash your hands or bathe yesterday?
Finding: Seniors, on average, bathe fewer than 3 days a week. And nearly 30%wash their hands only 4 times a day-half of the number doctors recommend.
Step: We touch our faces around 3,000 times a day-often inviting germs (病菌) to enter our mouth, nose, and eyes. Use toilet paper to avoid touching the door handle. And, most important, wash your hands often with hot running water and soap for 20 seconds.
3. How often do you think about fighting germs?
Finding: Seniors are not fighting germs as well as they should.
Step: Be aware of germs. Do you know it is not your toilet but your kitchen sponge (海绵) that can carry more germs than anything else? To kill these germs, keep your sponge in the microwave for 10 seconds.
【小题1】What is found out about American seniors?
| A．Most of them have good habits. |
| B．Nearly 30%of them bathe three days a week. |
| C．All of them are fighting germs better than expected. |
| D．About one third of them brush their teeth only once a day |
| A．twice a day | B．three times a day |
| C．four times a day | D．eight times a day |
| A．We should keep from touching our faces. |
| B．There are less than 300 types of bacteria in the mouth. |
| C．A kitchen sponge can carry more germs than a toilet. |
| D．We should wash our hands before touching a door handle. |
| A．a guide book | B．a popular magazine |
| C．a book review | D．an official document |
【小题1】D
【小题2】D
【小题3】C
【小题4】B
解析试题分析：美国人的健康生活习惯怎么样？最近一项调查显示，只有1/3的美国人生活习惯良好。在刷牙、洗手、灭菌的调查中，许多人并没有养成良好的生活习惯。
【小题1】细节理解题。由“A full 33% of seniors brush their teeth only once a day.”可知有大约1/3的人每天只刷一次牙。许多人的生活习惯并不算好，A项不对。老年人每星期洗澡小于3天，B项不对。人们没有像应该的那样抗菌，C项不对。故选D。
【小题2】细节理解题。由“nearly 30%wash their hands only 4 times a day-half of the number doctors recommend.”可知，每天洗4次手只达到了医生要求的一半，即每天应洗8次手。故选D。
【小题3】细节理解题。由“Do you know it is not your toilet but your kitchen sponge (海绵) that can carry more germs than anything else? ”可知厨房里的海绵可以携带比厕所更多的细菌。故选C。
【小题4】推理判断题。A项“指南”，B项“受欢迎的杂志”，C项“书评”，D项“官方文件”。根据文章内容推断应为杂志，故选B。
考点：科普类文章阅读。
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全优测试卷系列答案科目：高中英语 来源： 题型：阅读理解
Below is a discussion on a website.
| http://www.TalkingPoints.com/ | |
| Stuck on a desert island? | |
| Started on 23rd April by Steve Posts 1 – 7 of 42 | |
| Post 1 Steve USA | Hi, everyone. What would you miss most and least if you were stuck on a desert island? For me, it would be the changing seasons in New England. I guess this will sound stupid but I’d probably miss the rain, too. I wouldn’t miss getting up at six every day to go to work, though! What about you? |
| Post 2 Tomas Germany | Good question. Steve, I think I’d miss different types of bread, and shopping at the supermarket. I’d miss the food most. What would I miss least? My mobile phone---I’d like to be completely quiet --- at least for a little while |
| Post 3 Paola Italy | I would miss the company of people because I know I’d like to have someone to share experiences with. I’d go mad on my own. And I sure wouldn’t miss junk mail(垃圾邮件) --- I hate coming home every evening and a pile of junk mail in my post box. |
| Post 4 Miko Japan | Hi, I would miss Manga cartoon, the Internet and Japanese food, like sushi. I’d also miss TV shows and shopping for clothes… |
| Post 5 Roger UK | I would miss my daily newspaper and listening to the news on TV and radio. I’d feel very cut off if I didn’t know what was happening in the world. What I’d miss least would be traffic jams in the city, particularly my journey to work. |
| Past 6 Jayne | Why hasn’t anyone mentioned their family? I’d be lost without my husband and two kids. They’re the most important for me. And I can’t get started in the morning without a cup of black coffee. I wouldn’t miss doing the housework! |
| Post 7 Jaime Mexico | It would have to be music. I couldn’t live without my music. I wouldn’t miss going to school at all or doing homework! |
| A．Jaime | B．Jayne | C．Miko | D．Paola. |
| A．Steve. | B．Jaime | C．Roger. | D．Tomas |
| A．One | B．Two | C．Three | D．Four |
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科目：高中英语 来源： 题型：阅读理解
“Get your hands off me, I have been stolen,” the laptop, a portable（便携式的）computer, shouted. That is a new solution to laptop computer theft: a program that lets owners give their property a voice when it has been taken.
The program allows users to display alerts（警报）on the missing computer’s screen and even to set a spoken message. Tracking software for stolen laptops has been on the market for some time, but this is thought to be the first that allows owners to give the thief a piece of their mind.
Owners must report their laptop missing by visiting to a website, which sends a message to the model: a red and yellow “lost or stolen” sign appears on its screen when it is started. Under the latest version(版本) of the software, users can also send a spoken message.
The message can be set to reappear every 30 seconds, no matter how many times the thief closes it. “One customer sent a message saying, ‘You are being tracked. I am right at your door’,” said Carrie Hafeman, chief executive (主管) of the company which produces the program, Retriever.
In the latest version, people can add a spoken message. For example, the laptop’s speakers will say: “Help, this laptop is reported lost or stolen. If you are not my owner, please report me now.”
The Retriever software package(软件包), which costs $29.95 (￡21) but has a free trial period, has the functions of many security software programs. Owners can remotely switch to an alternative password if they fear that the thief has also got hold of the access details.
If a thief accesses the internet with the stolen laptop, Retriever will collect information on the internet service provider in use, so that the police can be alerted to its location.
Thousands of laptops are stolen every year from homes and offices, but with the use of laptops increasing, the number stolen while their owners are out and about has been rising sharply.
Other security software allows users to erase（删除）data remotely or lock down the computer.
【小题1】The expression “to give the thief a piece of their mind” can be understood as “_______”.
| A．to give the thief an alert mind |
| B．to express the owners’ anger to the thief |
| C．to remind the thief of his conscience |
| D．to make the thief give up his mind |
| A．record the stealing process |
| B．help recognize the lost laptop |
| C．lock down the computer remotely |
| D．send a spoken message |
| A．change some access details for switching on the laptop |
| B．turn on the laptop by using the original password |
| C．operate the laptop by means of an alternative password |
| D．erase the information kept in the stolen laptop |
| A．With no Retriever, thousands of laptops are stolen every year. |
| B．A new software provides a means to reduce laptop theft. |
| C．Retriever has helped to find thieves and lost computers. |
| D．A new program offers a communication platform with the thief. |
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科目：高中英语 来源： 题型：阅读理解
Hospital emergency rooms treat injured fingers all the time. Without treatment, a bad cut can lead to permanent damage. But how should a person know when a bleeding cut is serious enough to require medical attention? We asked Dr Martin Brown, chairman of the department of emergency medicine at Inova Alexandria Hospital in Virginia.
First, the medical term for a cut or tear in the skin is a laceration(严重划破，撕裂伤). Dr Brown says the length is usually not as important as the depth. He says a long cut on a finger can likely be treated without a visit to a doctor if the wound is not very deep. “If you have a short but deep laceration where there’s been a structure underneath that’s been damaged － a tendon, a nerve, a blood vessel,” says Martin, “it may, in fact, need professional attention.”
Some injuries － like a fingertip that gets cut off － might even require surgery to repair. That requires a specialist to either file(锉平) down the bone or reattach the fingertip. More often, filing down the bone is what is done because reattaching a fingertip is often not successful.
How a wound bleeds can be a sign of how serious it is. Minor cuts usually produce what is known as venous (静脉) bleeding. This means the blood flows steadily from the injury. The bleeding will often stop when pressure is put on the wound. Dr Brown says in most cases holding direct pressure with clean gauze or a cloth for four to five minutes should stop the bleeding. With a cut finger, holding the hand above the heart can reduce the loss of blood. But if a cut appears to be pumping blood out with some force, this may be a sign of arterial(动脉) bleeding. This kind of injury should be treated by a medical professional as soon as possible.
Even a cut that does not require medical attention must be kept clean to prevent infection. Small cuts should be cleaned gently with clean water. Use a washcloth to clean the area if the wound is dirty. Dr Brown says cuts should be covered with a clean, dry bandage.
【小题1】What does the writer want to tell the readers in the first paragraph?
| A．Hospital emergency rooms always treat injured fingers. |
| B．A bleeding cut is serious enough to require medical attention |
| C．Dr Martin Brown is in charge of Inova Alexandria Hospital. |
| D．It is important for us to be able to tell how serious a finger cut is. |
| A．a finger cut without treatment can lead to permanent damage |
| B．the length of a cut on a finger is more important than the depth |
| C．a long but not very deep cut often doesn’t need professional attention |
| D．a short but deep laceration that has been damaged need professional attention. |
| A．repair | B．rebuild | C．reconstruct | D．reconnect |
| A．Hospital Emergency Treatments For Injured Fingers |
| B．When a Cut Finger Is More Serious Than It Might Seem |
| C．Serious Finger Cut That Requires Medical Attention |
| D．Keep Finger Cuts Clean to Prevent Serious Infection |
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科目：高中英语 来源： 题型：阅读理解
Almost every machine with moving parts has wheels, yet no one knows exactly when the first wheel was invented or what it was used for. We do know, however, that they existed over 5,500 years ago in ancient Asia.
The oldest known transport wheel was discovered in Slovenia. It is over 5,100 years old. Evidence suggests that wheels for transport didn’t become popular for a while, though. This could be because animals did a perfectly good job of carrying farming tools and humans around. But it could also be because of a difficult situation. While wheels need to roll on smooth surfaces, roads with smooth surfaces weren’t going to be constructed until there was plenty of demand for them. Eventually, road surfaces did become smoother, but this difficult situation appeared again a few centuries later. There had been no important changes in wheel and vehicle design before the arrival of modern road design.
In the mid-1700s, a Frenchman came up with a new design of road — a base layer (层) of large stones covered with a thin layer of smaller stones. A Scotsman improved on this design in the 1820s and a strong, lasting road surface became a reality. At around the same time, metal hubs (the central part of a wheel) came into being, followed by the pneumatic type (充气轮胎） in 1846.Alloy wheels were invented in 1967, sixty years after the appearance of tarmacked roads (柏油路). As wheel design took off, vehicles got faster and faster.
【小题1】What might explain why transport wheels didn’t become popular for some time?
| A．Few knew how to use transport wheels. |
| B．Humans carried farming tools just as well. |
| C．Animals were a good means of transport. |
| D．The existence of transport wheels was not known. |
| A．It was easier than wheel design. |
| B．It improved after big changes in vehicle design. |
| C．It was promoted by fast-moving vehicles. |
| D．It provided conditions for wheel design to develop. |
| A．By giving examples. | B．By making comparisons. |
| C．By following time order. | D．By making classifications. |
| A．The beginning of road design. |
| B．The development of transport wheels. |
| C．The history of public transport |
| D．The invention of fast-moving vehicles. |
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科目：高中英语 来源： 题型：阅读理解
If the eyes are the romantic’s window into the soul, then the teeth are an anthropologist’s ( 人类学家 ) door to the stomach.
In a study published last month in the journal Science, Peter Ungar of the University of Arkansas and his partner, Matt Sponheimer of the University of Colorado, US, examined the teeth of our early human ancestors to find out what they were really eating.
They already knew that different foods cause different marks on teeth. Some cause scratches, while others cause pits (坑).The carbon left on teeth by different foods is also different. Tropical grasses, for example, leave one kind of carbon, but trees leave another kind because they photosynthesized ( 光合作用 ) differently.
Traditionally, scientists had looked at the size and shape of teeth and skulls ( 头骨 ) to figure out what early humans ate. Big flat teeth were taken to be signs that they ate nuts and seeds, while hard and sharp teeth seemed good for cutting meat and leaves. But this was proven wrong.
The best example was the Paranthropus (傍人), one of our close cousins, some of which lived in eastern Africa. Scientists used to believe Paranthropus ate nuts and seeds because they had big crests(突起)on their skulls, suggesting they had large chewing muscles and big teeth. If this had been true, their teeth should have been covered with pits like the surface of the moon. They would also have had a particular type of carbon on their teeth that typically comes from tree products, such as nuts and seeds.
However, when the two scientists studied the Paranthroupus, it turned out to have none of these characteristics. The teeth had a different kind of carbon, and were covered with scratches, not pits. This suggests they probably ate grass, not nuts and fruit stones. It was the exact opposite of what people had expected to find.
Carbon “foodprints” give us a completely new and different insight into what different species ate and the different environments they lived in. If a certain species had the kind of carbon on its teeth that came from grasses, it probably lived in a tropical grassland, for example.
【小题1】The underlined sentence in Paragraph 1 probably means that _____.
| A．anthropologists can study the structure of human stomachs by studying their teeth. |
| B．anthropologists can study the diet of early humans by studying their teeth |
| C．anthropologists can learn whether humans were healthy by looking at their teeth |
| D．anthropologists can get the most useful information about humans from their teeth |
| A．Scratches on teeth are caused by eating nuts or seeds. |
| B．Pits on teeth are caused by eating grass or leaves. |
| C．Early humans with hard and sharp teeth ate meat and leaves. |
| D．Different foods leave different marks and carbon on teeth. |
| A．tell readers that they are one of our close cousins living in eastern Africa |
| B．tell readers they had different eating habits from modern humans |
| C．prove that size and shape of skulls does not show accurately what early humans ate |
| D．tell readers that living environment makes a difference to skull structure |
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科目：高中英语 来源： 题型：阅读理解
BEIJING (AP) — Sandstorms whipping across China shrouded(遮蔽) cities in an unhealthy cloud of sand Monday, with winds carrying the pollution outside the mainland as far as Hong Kong and Taiwan.
It was the latest sign of the effects of desertification: Overgrazing, deforestation, urban sprawl(无计划地扩展) and drought have expanded deserts in the country's north and west. The shifting sands have gradually moved onto populated areas and worsened sandstorms that strike cities, particularly in the spring.
Winds blowing from the northwest have been sweeping sand across the country since Saturday, affecting Xinjiang in the far west all the way to Beijing in the country's east. The sand and dust were carried to parts of southern China and even to cities in Taiwan, 1600 miles (2600 kilometers) away from Inner Mongolia where much of the pollution originated.
The sandstorm in Taiwan, an island 100 miles (160 kilometers) away from the mainland, forced people to cover their faces to avoid breathing in the grit(砂砾) that can cause chest discomfort and respiratory problems even in healthy people. Drivers complained their cars were covered in a layer of black soot in just 10 minutes.
In Hong Kong, environmental protection officials said pollution levels were climbing as the sandstorm moved south. Twenty elderly people sought medical assistance for shortness of breath, Hong Kong's radio RTHK reported.
The latest sandstorm was expected to hit South Korea on Tuesday, said Kim Seung-bum of the Korea Meteorological Administration. The sandstorm that raked(掠过) across China over the weekend caused the worst "yellow dust" haze in South Korea since 2005, and authorities issued a rare nationwide dust advisory.
Grit from Chinese sandstorms has been found to travel as far as the western United States.
China's Central Meteorological Station urged people to close doors and windows, and cover their faces with masks or scarves when going outside. Sensitive electronic and mechanical equipment should be sealed off, the station said in a warning posted Monday on its Web site.
State television's noon newscast showed the tourist city of Hangzhou on the eastern coast, where graceful bridges and waterside pagodas were hidden in a mix of sand and other pollution. In Beijing, residents and tourists with faces covered scurried along sidewalks to minimize exposure to the pollution.
A massive sandstorm hit Beijing in 2006, when winds dumped about 300,000 tons of sand on the capital.
【小题1】We can learn from the text that .
| A．the sandstorms were purposely made by China. |
| B．the writer thinks that China government should be responsible for the pollution. |
| C．the sandstorms badly affected the air in US. |
| D．China's Central Meteorological Station will be closed. |
| A．Xinjiang | B．Hangzhou | C．Beijing | D．Inner Mongolia |
| A．breathing | B．digesting | C．hearing | D．walking |
| A．South Korea seldom issues nationwide dust advisories. |
| B．Taiwan is 1,600 miles from Beijing. |
| C．Sandstorms have hit Beijing more than once. |
| D．In Hong Kong some old people need help for shortness of breath caused by sandstorms. |
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科目：高中英语 来源： 题型：阅读理解
NOT all memories are sweet. Some people spend all their lives trying to forget bad experiences. Violence and traffic accidents can leave people with terrible physical and emotional scars. Often they relive these experiences in nightmares.
Now American researchers think they are close to developing a pill, which will help people forget bad memories. The pill is designed to be taken immediately after a frightening experience. They hope it might reduce, or possibly wipe out, the effect of painful memories.
In November, experts tested a drug on people in the US and France. The drug stops the body releasing chemicals that fix memories in the brain. So far the research has suggested that only the emotional effects of memories may be reduced, not that the memories are wiped out. They are not sure to what degree people’s memories are affected.
The research has caused a great deal of argument. Some think it is a bad idea, while others support it.
Supporters say it could lead to pills that prevent or treat soldiers' troubling memories after war.
They say that there are many people who suffer from terrible memories.
"Some memories can ruin people's lives. They come back to you when you don't want to have them in a daydream or nightmare. They usually come with very painful emotions," said Roger Pitman, a professor of psychiatry at Harvard Medical School. "This could relieve a lot of that suffering."
But those who are against the research say that maybe the pills can change people’s memories and changing memories is very dangerous because memories give us our identity. They also help us all avoid the mistakes of the past.
"All of us can think of bad events in our lives that were terrible at the time but make us who we are. I'm not sure we want to wipe those memories out, "said Rebecca Dresser, a medical ethicist.
【小题1】The passage is mainly about .
| A．a new medical invention |
| B．a new research on the pill |
| C．a way of wiping out painful memories |
| D．an argument about the research on the pill |
| A．cause the brain to fix memories |
| B．stop people remembering bad experiences |
| C．prevent body producing certain chemicals |
| D．wipe out the emotional effects of memories |
| A．people doubt the effects of the pills |
| B．the pill will certainly stop people's emotional memories |
| C．taking the pill will do harm to people's physical health |
| D．the pill has already been produced and used by the public in America |
| A．some memories can ruin people's lives. |
| B．people want to get rid of bad memories. |
| C．experiencing bad events makes us different from others. |
| D．the pill will reduce people's sufferings from bad memories. |
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科目：高中英语 来源： 题型：阅读理解
With alarming regularity, we read about oil tankers having accidents near land and the terrible consequences of the oil spills （泄露） on people, nature, and the environment．
Millions of dollars have been used in developing special chemicals to help dismiss the spills and to clean up the animals, beaches, and land spoiled by the oil．Unfortunately, when many of these chemicals are used, more damage is caused to the environment, especially to lives in the sea．
Of all of today's environmental disasters, an oil spill may actually be one of the least serious．Although oil is poisonous, it is a natural material．In the end, it breaks down naturally．There are, of course, long-term effects, but it is usually more serious in the short term．
Nature by itself works better than chemical materials, but when there is a spill we demand that governments act immediately with as much hi-tech knowledge as possible．In 1967 the tanker Torrey Canyon sank off the Scilly Isles near the coast of England and spilled 120,000 tones of oil into the ocean．If you go there today, you will find it hard to see any sign that it ever happened．
Governments seem to accept the risk of transporting millions of tons of oil by ship every day so that we can fill up our cars and drive around and cause even more environmental damage．Interestingly, the biggest companies in the world produce cars, and the next biggest supply the gasoline to make them run.
We should be thinking more about reducing our dependency on oil．Governments should be encouraging research into new technologies, such as cars run by solar power （太阳能） , electricity, hydrogen, and so on．Much of this research has, in the past, been held back by the oil, gas, and coal．
If the world's millions of cars were 10% more efficient （高效的）—and the industry could easily produce cars at least twice as efficient，we would need many fewer tankers crossing the oceans each year．If this happened, the risks of oil spills would be reduced, and the air we breathe would be cleaner and fresher, too．
【小题1】What is the passage mainly talking about?
| A．Oil spills pollution． | B．What oil pollution is |
| C．Oil tanker accidents. | D．How to reduce oil pollution |
| A．By giving a description． | B．By making an argument |
| C．By giving an example． | D．By drawing a diagram |
| A．Transportation depending more on oil |
| B．Poisonous oil breaking down naturally |
| C．Millions of tons of oil spilling into the sea |
| D．More environmental damage being caused |
| A．We should build safer tankers in the near future |
| B．We should develop new technologies to cut oil use |
| C．Tankers should not be allowed to sail near the coastlines |
| D．Countries should build more oil pipelines under the sea |
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