Question

Plants are very important living things. Life could not go on if there were no plants. This is because plants can make food from air, water and sunlight. Animals and man cannot make food from air, water and sunlight. Animals get their food by eating plants and other animals. Therefore animals and man need plants in order to live. This is why we find that there are so many plants around us.

If you look carefully at the plants around you, you will find that there are two kinds of plants: flowering plants and non-flowering plants.

Flowering plants can make seeds. The seeds are protected by the fruits. Some fruits have one seed, some have two, three or four, and some have many seeds. But a few fruits have no seeds at all. An example of a fruit without seeds is the banana fruit.

Most non-flowering plants do not grow from seeds. They grow from spores(胚芽). Spores are 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 seeds. When these spores are all on wet and shady places, they usually grow into new plants.

1.Plants can make food from______.

A. flower, water and air.    B. water, sunlight and air.

C. air, water and soil.    D. air, sun and light.

2.What can we infer(推断) from the passage ?

A. Of all living things animals are most important.    B. Spores are seeds.

C. All fruits of flowering plants have seeds.    D. Without plants, man will die out.

3.This passage may be taken from______.

A. a medicine book    B. a novel

C. a science magazine    D. an experiment report

Answer

1. B

2. D

3. C

【解析】

本文是一篇说明文。文章主要讲述了植物对于我们的重要性以及它们的繁殖方式.。

1.细节理解题。根据文章第一段This is because plants can make food from air, water and sunlight.可知植物是从空气、水和阳光制造有机物的。故选B。

2.推理判断题。使用排除法，A项中有all/most表绝对的词，故排除A；根据第四段中We may say that spores are quite the same as seeds.可知胚芽和种子只是作用类似的东西，胚芽并不是种子，故排除B；文中提到香蕉是没有种子的水果，故可以排除C。全文向我们表达了植物对于生活、人类甚至各种生物的重要性，言下之意也就是没有植物，人类将不能生活下去。故选D。

3.主旨大意题。这篇短文主要介绍了植物的两种繁殖方式，故有可能出自一本科学杂志，故选C。