【題目】All living things need energy to live and grow. This energy comes first from the sun. Plants use water and sunlight to make their own food. Animals can not make their own food, and they eat plants. Other animals then eat the plant eaters.

A food chain shows what eats what. It might show that zebras eat grass and then lions eat zebras.

Lions also eat other animals. Zebras eat other kinds of plants. So it takes more than one food chain to show how lions and zebras get their energy.

A food web shows how food chains work together. From it we can see how energy moves from plants to animals.

Plants and animals that live in hot, dry deserts depend on water as well as food. Creosote bushes have small leaves that hold water. Their seeds provide food and water for kangaroo rats. Kangaroo rats don’t need to drink water. They get all the water they need from the plants they eat. Kangaroo rats keep cool by coming out only at night to look for food. Ringtail cats also come out only at night. Ringtail cats hunt and eat kangaroo rats. Coyotes eat both the kangaroo rats and the ringtail cats.

Nothing is wasted in a food wed. Vultures eat dead animals. Vultures are scavengers. Scavengers do not hunt and kill other animals to get food. They eat animals that are already dead. When a ringtail cat or a coyote dies, it makes a meal for the vultures. Scavengers do an important job in keeping the environment clean.

1Where does the energy that living things need first come from?

A. Animals. B. Plants. C. The sun. D. Plant eaters.

2Why do ringtail cats come out only at night?

A. Because they are afraid of coyotes. B. Because they are shy animals.

C. Because it is very hot in the daytime. D. Because they can eat kangaroo rats.

3What kind of animal can be placed in the empty box of the picture?

A. Kangaroo. B. Vulture. C. Cat. D. Zebra.

4Which of the following is NOT TRUE according to the passage?

A. Lions eat different kinds of animals. B. Plants are on the top of the food chain.

C. Scavengers can keep the environment clean. D. Some animals get water from the plants they eat.

5What’s the best title of the passage?

A. Web of life B. Things that we eat

C. Food in the desert D. The place where food is from

【答案】

1C

2D

3B

4B

5A

【解析】這是一篇科普說明文,短文中給我們介紹了自然界中的食物鏈和食物網(wǎng),并通過舉例介紹了食物鏈是如何運作的。

1細節(jié)理解題。根據(jù)短文的開頭All living things need energy to live and grow. This energy comes first from the sun.可知,所有的生物都需要能量來成長,這種能量首先是來自太陽,由此可知應(yīng)選C。

2細節(jié)理解題。根據(jù)短文第四段中Kangaroo rats keep cool by coming out only at night to look for food. Ringtail cats also come out only at night. Ringtail cats hunt and eat kangaroo rats.可知,浣熊在晚上出來是為了捕殺長鼻袋鼠吃。由此可知應(yīng)選D。

3細節(jié)理解題。根據(jù)短文最后一段Vultures eat dead animals. Vultures are scavengers. Scavengers do not hunt and kill other animals to get food. They eat animals that are already dead. When a ringtail cat or a coyote dies, it makes a meal for the vultures可知,浣熊和土狼死了之后,禿鷹會吃他們的尸體,它是一種食腐動物,吃所有動物的尸體。圖片中展示的是一個食物鏈,在最高級的這一個應(yīng)選B。

4推理判斷題。根據(jù)短文第一段Animals can not make their own food, and they eat plants. Other animals then eat the plant eaters.可知,植物處在食物鏈的最底層,不是最高層,故B是錯誤的。根據(jù)then lions eat zebras. Lions also eat other animals可知A正確;根據(jù)短文最后一句話Scavengers do an important job in keeping the environment clean.可知C正確;根據(jù)Kangaroo rats don’t need to drink water. They get all the water they need from the plants they eat.可知D正確。

5主旨大意題。這篇短文給我們介紹的是自然界中的食物網(wǎng),它可以告訴我們食物鏈是如何協(xié)作的,文章還以沙漠中的動物為例,給我們介紹了食物網(wǎng)。因此A選項點明了文章的主題詞,最符合文意,故選A。

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