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我们的重要性，并对植物的分类进行了说明。

1..A 主旨大意题。根据文章主题段第一段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我们的重要性，文章中还进行了详细地说明。故A正确。

2.B 细节题。根据文章第一段第2句This is because plants can make food from air, water and sunlight.可知B项正确。

3.D 推理题。根据文章第一段3,4行Animals get their food by eating plants and other animals. Therefore animals and man need plants in order to live.可知植物对我们很重要，没有了植物，我们也无法生存。故D项正确。

4.C 推理题。本文讲述的是植物对人类的重要性，并仔细说明了植物的分类，说明这是科学研究方面的话题，故最可能是从科学杂志里摘录出来的。故C正确。

5.D 推理题。根据本句The seeds are protected by the fruits.可知这些种子都是由水果保护住的，说明该词是指guard。故D正确。

考点：考察科普类短文阅读