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.The main idea of the first paragraph is that ______.

A．plants are important for life               B．plants cannot grow without air

C．there are many plants in the world          D．we can not live without water

2.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

3.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

4.This passage may be taken from ________.

A．a medicine book                        B．a novel

C．a science magazine                      D．an experiment report

5.The underlined word “protected” in the third paragraph can be replaced by ______.

A．damaged          B．polluted           C．prevented         D．guarded

Answer

1.A

2.B

3.D

4.C

5.D

【解析】

试题分析：本文讲述的是植物对人类的重要性，并仔细分析了植物的特点和分类。

1.A 主旨大意题。根据文章1,2行Plants are very important living things. Life could not go on if there were no plants.可知本文讲述的是植物对人类的重要性，并仔细分析了植物的特点和分类。故A正确。

2.B 细节题。根据文章第2行This is because plants can make food from air， water and sunlight.可知植物可以从空气，水和阳光中获取养分。故B正确。

3.D 推理题。根据文章3,4,5行Animals get their food by eating plants and other animals. Therefore animals and man need plants in order to live.可知动物要靠植物为食物，所以没有植物，人类就会灭绝。故D正确。

4.C 推理题。本文讲述的是植物的特点和分类，属于自然知识类，不会是医学和小说，也不会是实验报告，最可能是科学杂志里的内容。故C正确。

5.D 推理题。根据本句Flowering plants can make seeds. The seeds are protected by the fruits.可知有种子的作物的种子是靠水果在外面保护着，故D正确。

考点：考查科普类短文阅读