Have you ever had the strange feeling that you were being watched? You turned around and, sure enough, someone...

题型：阅读选择题类：模拟题难易度：普通

      Have you ever had the strange feeling that you were being watched? You turned around and, sure enough, someone was looking right at you!
      Parapsychologists (灵学家) say that humans have a natural ability to sense when someone is looking at them. To research whether such a “sixth sense” really exists, Robert Baker, a psychologist (心理学家) at the University of Kentucky, did two experiments.
    In the first one, Baker sat behind unknowing people in public places and stared at the backs of their heads for 5 to 15 minutes. The subjects（受试者）were eating, drinking, reading, studying, watching TV, or working at a computer. Baker made sure that the people could not tell that he was sitting behind them during those periods. Later, when he questioned the subjects, almost all of them said they had no sense that someone was staring at them.
      For the second experiment, Baker told the subjects that they would be stared at from time to time from behind in a laboratory setting. The people had to write down when they felt they were being stared at and when they weren't. Baker found that the subjects were no better at telling when they were stared at and when they weren't.
    Baker concludes that people do not have the ability to sense when they're being stared at. If people doubt the outcome of his two experiments, said Baker, “I suggest they repeat the experiments and see for themselves.”

（1）、The aim of the two experiments is to ________.

A、explain when people can have a sixth sense B、show how people act while being watched in the lab C、study whether humans can sense when they are stared at D、prove why humans have a sixth sense

（2）、The underlined word “outcome” in the last paragraph most probably means ________.

A、value B、result C、performance D、connection

（3）、In the second experiment, the subjects _________.

A、could tell when they were stared at and when they weren't B、could tell when they were stared at but couldn't tell when they weren't C、couldn't tell when they were stared at but could tell when they weren't D、couldn't tell when they were stared at or when they weren't

（4）、What can be learned from the passage?

A、People are born with a sixth sense. B、The experiments support parapsychologists' idea. C、The subjects do not have a sixth sense in the experiments. D、People have a sixth sense in all places.

举一反三

The sea looks very beautiful when the sun is shining on it. But it can be very terrible when there is a strong wind. The sea is very big. It covers three quarters of the earth. The sea is also very deep in some places. In one place, the sea is about 11 kilometres deep. The highest mountain(山) in the world is about nine kilornetres high. If that mountain was put into the sea at that place, there would still be two kilometres of water above it!
In most parts of the sea,there are plenty of fishes and plants (植物). Some live near the top of the sea.Others live deep down. There are also a lot of small living things,and lots of fish live by eating them. The sea can be very cold. When people go down, the sea becomes colder and colder. Only some men can go down into the deep sea. But,in 1970,five women scientists lived in the deep sea for fourteen days.

    In the most southern part of our planet, there's a place that's covered with snow and ice all year round. But it has the clearest and cleanest air. Amazingly, in this place, the sun sometimes hangs even in the midnight sky. This place is Antarctica (南极洲): the coldest, windiest and harshest (恶劣的) place on the Earth.
    As the world's least-known place, Antarctica is of great interest to scientists around the world. In 1983, China joined the Antarctic Treaty (《南极条约》). The treaty made Antarctica a peaceful place for member countries to do scientific research. During 30 years, China has sent many scientists to Antarctica. They mostly look at the resources under the icy land and do research about climate change and marine (海洋的) biology.
    Antarctica is a place with fantastic views. However, life there is very hard. Food is one of the biggest problems. Frozen (速冻) food which can be heated easily is people's daily food. Fresh vegetables are hard to grow in the cold weather. Therefore, scientists often eat dried or canned vegetables.
    Sleep is also troublesome. In Antarctica, summer lasts from November to March. During this period, Antarctica points to the sun and receives sunlight 24 hours a day. In order to get some sleep, scientists cover the windows with black plastic cloth to create “night”.
Working in Antarctica is dangerous, especially when meeting gale-force (七级以上的) winds. Sometimes the wind is even stronger than a typhoon. It can easily blow people away. So there are ropes that connect buildings of some research stations. People can hold these ropes to keep their balance in forceful winds.
    What's more, communicating with others is difficult. Without cables and Internet in some research stations, two-way radios are the only tools to communicate. If people want to say hello to friends and relatives, they can use satellite phones.
    Although it is challenging to work in Antarctica, scientists' passion to learn about this mysterious land will never end. It is hopeful that one day they will step every corner of this icy land.

根据短文内容，选择正确答案。

Have you seen Avatar（《阿凡达》）? It's a popular 3D movie, and you may have to wear 3D glasses to see it. The 3D glasses make the images(图像)from the movie look as if they were coming straight towards you.

More and more 3D movies are coming to theaters. Some say that 3D TV sets will come into our homes in the near future. 3D technology can make TV and movies are more exciting. However, people with eye problems may get headaches if they spend too much time watching 3D movies. Why?

When we look at an object(物体), each eye sees it at a different angle(角度). Our eyes send the two images to our brain(大脑), and the brain puts them together. 3D technology uses two film projectors(投影机). One projects a left-eye-image and the other projects a right-eye-image. 3D glasses allow us to see a different image in each eye. So, when we are watching a 3D movie, our brain can't put together the images sent to our eyes. The brain needs to work harder at “reading” the images. That makes it easier for people with eye problems to get dizzy(头晕的) or have headaches. A famous eye doctor said if your eyes can't focus(聚焦) on the same object at once, you will have trouble watching 3D movies.

阅读下面短文，请从每小题所给的A、B、C、D四个选项中选出最佳选项。

When you build a house，you use a blueprint．What's a blueprint?In general，a blueprint is a drawing that you use to build a house and shows where to put all the parts of the house．DNA is a drawing,too．It's the blueprint of life．

But building a living thing is far more complex*than building a house．It takes millions of years for nature to change the DNA in living things to make them fit the world they live in．

How tall are you?What color are your eyes?What size are your feet?All these things are strongly influenced by your DNA before you are born．

DNA is fantastic!

★Except for some twins，every living thing has its own unique*DNA．

★Some health problems can be caused by problems in your DNA．Scientists can look for these problems and，sometimes，help you if you become sick．In the future，scientists might be able to change your DNA．

★There are copies of your DNA in every part of your body．For example，your finger has the same DNA as your hair．

★You have your own unique DNA，which repeats patterns from your parents' DNA．but not exactly the same．From your DNA，scientists can identify not only you，but also people who are related to you．Your parents and grandparents are related to you，and you have their DNA．When you have a grandson or granddaughter，he or she will have your DNA．

Your DNA has billions of instructions that explain why you are the way you are．It's one of the most amazing things on the earth !

阅读短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。

After years of research and testing, the hybrid car was developed and put on the market. It's an interesting and exciting new improvement in today's world as we look for better ways to protect the quality of the air we breathe and save our natural resources.

The quality of our air is affected by many different things. But one of the largest sources of air pollution is the burning of fossil fuels such as coal and gasoline which is used to power a car's engine. The EPA has set national standards to help control the level of harmful pollutants sent off into the air, and the automobile industry has acted by producing a hybrid car that uses less gas and therefore causes less pollution.

A hybrid car is a combination of a regular car that runs on gasoline and an electric car that is battery powered. Some people tend to think that since the hybrid car is partially electric, you have to plug it in to charge it. But that's not how it works. The 144 volt battery pack is actually recharged through the energy that is produced when the car's brakes are used. This is referred to as "regenerative braking", because it produces electricity.

Although the hybrid car still runs on gasoline most of the time, this helps it use less gas than a regular car. When the driver stops at a traffic light, the engine automatically shuts off to save fuel. Then, as soon as the driver puts the car in gear and touches the gas pedal, the engine starts back up.

Have you ever ridden in a car with someone who ran out of gas? That probably wouldn't happen if you were riding in a hybrid car. It flashes a warning on its computer screen that says, "I am low on gas". When it completely runs out, the warning reads, "YOU ARE NOW OUT OF GAS!" Then the electric power supply kicks in to let the driver travel a few more miles to a gas station.

阅读理解

Posted on 25 March by Selina

I used to shower with soap every day, but my skin(皮肤)always felt dry and itchy(发痒的). Then two months ago, I heard of the no-soap movement. Since then, I've given up using soap in the shower. I still shower every day. I just don't use soap because it's filled with chemicals.

So, what's so bad about using soap? Well, the chemicals in soaps can be harmful to our health. So, if we use soap, our skin will take in the chemicals, which will then end up in our bodies. According to the scientists, some of the chemicals used in a soap are quite dangerous. During my research, I also learnt that soap removes moisture(水分)from the body. This is actually why my skin was so dry and itchy.

Getting used to washing my body without soap was a huge change. For the first week, I felt a bit dirty and I didn't smell great, either. However, during the second week, my skin felt clean without strange smell. Best of all, my skin problems disappeared, and now I have softer and healthier skin.

On the whole, going soap-free has not only saved me time and money, but has also improved my skin. What's more, this experience has made me take a look at some of the other products I use in the shower, such as shampoo. More about that in my next blog!

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