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题型:阅读选择 题类:常考题 难易度:普通

牛津译林英语八年级上册 Unit 2 School life单元测试(二)

根据短文内容选择正确答案。

    There are many kinds of animals that live in the forest, such as mice, rabbits, squirrels, bears.

    Animals in the forest depend on(依靠)one another for food. Many small forest animals, such as mice, eat green plants for food, and then larger animals eat them. This is called food chain. A food chain begins with the sun. The green plants in the forest use the sun's energy to make food for themselves. It's called photosynthesis(光合作用). Mice eat flowers and seeds that forest plants produce(生产).The mice get their energy from the plants, and the mice become food for a larger animal, such as the hunting hawk. So the energy from the sun passes from the plants to the mice to the hawk. A break(中断)in any part of this food chain means some animals may not have enough food to eat.

(1)、Photosynthesis takes place when _____________.

A、larger animals eat small animals.         B、green plants use the sun's energy to make food. C、Forest animals eat the food made by green plants.      D、The food chain is broken.
(2)、What's the first link(环) in a food chain?

A、The sun B、The earth C、Green plants D、Forests animals
(3)、Animals sometimes cannot find enough food because _____________.

A、it's cloudy. B、there is very little food in a forest.    C、Photosynthesis stops. D、There is a break in the food chain.
(4)、What does the food chain show about living things?

A、They depend on each other. B、Large animals eat small animals. C、Plants with flowers are the most important. D、Plants are more than animals.
(5)、What may be the best title of the passage?

A、Animals in the world B、Food chain   C、Plants and man. D、Animals are in danger.
举一反三
根据短文内容,判断下列句子是否正确.
   Plants are very important living things. Life could not go if there were no plants. This is because plants can produce food from the air, water and sunlight. Animals and man cannot produce food from the air, water and sunlight as plants do. Animals get their food by eating plants or other animals which eat plants. So animals and man need plants in order to live.
   If you look carefully at the plants around you, you will find that there are two kinds of plants: flowering plants and non-flowering ones.
Flowering plants can make seeds. The seeds are protected by the fruits. Some fruits have one seed. Some have two, three or four. Some have many. But a few fruits have no seeds at all. An example of a fruit without seeds is the banana.
   Most non-flowering plants don't grow from seeds. They grow from spores (孢子). Spores are very, very small. Some spores are so small and light that they can float in the air. We may say that spores are quite the same as the seeds. When these spores fall on wet and shady places, they usually grow into new   plants.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        

Do you know that women's brains are smaller than men's? Normally the women's brain weighs 10% less than men's. Since research has shown that the bigger the brain, the cleverer the animal, men must be more intelligent(聪明的) than women. Right? Wrong. Men and women always score similarly on intelligence tests, despite the difference in brain size. Why? After years of study, researchers have concluded that it's what's inside that matters, not just the size of the brain. The brain is made up of “grey matter” and “white matter”. While men have more of the white matter, the amount(数量)of “thinking” brain is almost the same in both men and women.
It has been suggested that smaller brain appears to work faster, perhaps because the two sides of the brain are better connected in women. This means that little girls may learn to speak earlier, and that women can understand sorts of different information at the same time. When it comes to talking to the boss on the phone, cooking dinner and keeping an eye on the baby all at the same time, it's women who come out on top every time.
There are other important differences between two sexes(性别). As white matter is the key to spatial(空间的)tasks, men know better where things are in relation to other things. “A great footballer always knows where he is in relation to the other players, and he knows where to go,” says one researcher. That may explain one of life's great mysteries: why men refuse to ask for directions … and women often need to!
The differences begin when fetuses(胎儿)are about nine weeks old, which can be seen in the action of children when they are very young. A boy would try to climb a barrier before him or push it down while a girl would ask for help from others. These brain differences also explain the fact that more men take up jobs that require good spatial skills, while more women speech skills. It may all go back to our ancestors, among whom women needed speech skills to take care of their babies and men needed spatial skills to hunt, according to one research.

阅读下列材料,从A、B、C、D四个选项中选出最佳答案。C
    Scientists in Britain and the United States have made a new kind of enzyme (酵素) that eats plastics (塑料). With its help, plastics can be turned into smaller parts and go away quickly. Scientists believe that, in the future, it could solve the problem of plastic pollution.
    The enzyme is able to break down PET, a form of plastic. PET was first made in the 1940s and is now widely used to make plastic bottles. It can remain in the environment for many years and pollute large areas of land and water. So it has always been a headache to deal with the waste from PET and other plastics.
    The researchers made the discovery (发现) while examining the structure of a natural enzyme in Japan. They found that the natural enzyme was helping to break down PET plastics. So, they decided to make small changes to the enzyme by adding some amino acids (氨基酸). It made the natural enzyme's plastic-eating abilities work faster and better.
    John McGeehan, one of the lead researchers, said, “We've made an improved enzyme. It's better than the natural one. And we are trying to make more improvements to it.” He went on, “The enzyme is not harmful to humans or animals, and it is friendly to the environment. So we are considering putting it into wider use.”
    The team is now trying to make the enzyme break down PET in large quantities (大量地). “We'll see that the plastic pollution may be stopped with this technology. However, there is still a long way to go,” John McGeehan added.
阅读理解

    With the development of the technology, 3D printing is becoming more and more popular. We are now able to print things such as clothing, musical instruments and even cars. People and businesses are able to create the things they need very quickly and easily by using 3D printers.

    But can you imagine printing food? Some scientists are trying a new way to get the dining experience by doing this. They hope that having a 3D printer in the kitchen will become as common as the oven or blender. Scientists say that they are easy to use: you simply have to choose a recipe (食谱) and put the uncooked "food ink" into a printer. You can also change the instructions to make the food you want. This means that it would be very quick and easy to create tasty and rich meals.

    Using 3D printers to create your meals would also be saving the environment. There would be less need for traditional growing, shipping and packaging processes as food products would be a lot quicker and better. For example, tree leaves and insects could be turned into tasty products! Printing food could also help people who have a swallowing (吞咽) trouble. They could program the printer to print softer kinds of foods so that they would not have difficulty swallowing them.

            It could take away many jobs, including those for growing, shipping and packaging food. Imagine a world where there was no need for growing or producing and the same tastes could be printed from an uncooked "food ink". Besides, traditional restaurants might lose business. Also, we have to consider: is it really possible to get everything we need from them?

    As we know, cooking and eating together with family and friends has long been a traditional and enjoyable activity. It is hard to imagine a world where the pastime of cooking is dead and meals can be created at the touch of a machine.

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