All living things on the earth need other living things to live. Nothing lives alone. Most animals must live in a group, and even a plant grows close together with others of the same kind. Sometimes one living thing kills another, one eats and the other is eaten. Each kind of life eats another kind of life in order to live, and together they form a food chain (食物鏈). Some food chains are simple, while others are not. But all food chains begin with the sun, and all food chains become broken up if one of the links disappears.
All life needs sunlight to live on. But only plants can use sunlight directly. Plants are "factories". They make food from sunlight, water and things in the soil and air.
Plants feed all other living things. Animals can only use the sun's energy (能量) after it has been changed into food by plants. Some animals' feed directly on plants, others eat smaller animals.
What about human beings(人類(lèi))? We are members of many food chains. We eat wheat, rice, vegetables, fruits and so on. We also eat meat and drink milk. But men often break up the food chains. They kill wild animals. They also make rivers, lakes and seas dirty. When these rivers, lakes and seas are polluted, the fish in them can not be eaten. If men eat the fish, they will get strange diseases. Each form of life is linked to all others. Breaking the links puts all life in danger.
1.How does every living thing on the earth live?
A. Each plant can live alone.
B. Each animal can live alone.
C. If living things want to live, they must kill each other.
D. Every living thing on the earth cannot live without others.
2.Which living things can use the sun's energy directly?
A. Animals. B. Plants.
C. Both animals and plants. D. All living things
3.Plants make food from____________.
A. sunlight, water and things in the soil and air
B. water, sunlight and things in the soil
C. water and things in the soil and air
D. water and things in the soil
4.Who often break up the food chains?
A. Human beings. B. Animals.
C. Plants and animals. D. Men and wild animals.
5.Which of the following do you think is the best title for this passage?
A. Animals B. Plants C. Food Chains D. Living Things
1.D 2.B 3.A 4.A 5.C 【解析】本文主要介紹了地球上的食物鏈。植物制作食物,動(dòng)物吃植物。我們?nèi)祟?lèi)也吃植物和動(dòng)物,但是也會(huì)打斷食物鏈。每種生物都需要依靠其他生物去生活,如果食物鏈斷了,可能導(dǎo)致所有的生物處于危險(xiǎn)中。 1.D 細(xì)節(jié)理解題。根據(jù)All living things on the earth need other living thi...年級(jí) | 高中課程 | 年級(jí) | 初中課程 |
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