Question

【题目】There are many kinds of animals that live in the forest, such as mice, rabbits, squirrels and 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 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.

Answer 1

【答案】

【1】B

【2】A

【3】D

【4】B

【解析】

本文介绍了什么是食物链。以及如果食物链被破坏了，会产生什么后果。

【1】细节理解题。根据句子The green plants in the forest use the sun’s energy to make food for themselves. It’s called photosynthesis(光合作用). 可知，光合作用就是森林中的绿色植物利用太阳的能量为自己制造食物。故选B。

【2】细节理解题。题干的意思是：食物链中的第一个环节是什么？由句子A food chain begins with the sun. 食物链是从太阳开始的。可知，食物链中的第一个环节是太阳。故选A。

【3】细节理解题。题干的意思是：动物有时找不到足够的食物，因为什么。由句子A break（中断）in any part of this food chain means some animals may not have enough food to eat. 可知，一些动物可能没有足够的食物吃是因为食物链有一个断裂。故选D。

【4】推理判断题。A. Animals in the world世界里的动物；B. Food chain食物链；C. Plants and man. 植物和人类；D. Animals are in danger. 动物处于危险之中。根据句子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. 森林里的动物依靠彼此来获取食物。许多小的森林动物，比如老鼠，吃绿色植物作为食物，然后较大的动物吃它们。这就是所谓的食物链。可知，本文的主题是关于食物链的，故选B。

细节理解题的解题技巧：

一般针对某个特定的细节而提供，难度较小，属表层信息理解，考生通读短文后可直接找出答案依据。

解题技巧：通读短文，领会文章大意，理解文章结构层次及细节，特别注意：

1. 五个W（who, which, when, where, what）和一个H（how）；

2. 数字、日期、时间等；

3. 注意加强语气的词。然后运用排除法排除不符合原文细节的选项，剩下的就是要选择的最佳答案。