2018北京小升初英语备考专题及解析：阅读理解4

　　D

　　Fire can help people in many ways. But it can be very dangerous. Fire can heat water， warm houses， give light and cook. But fire can burn things， too. It can bum trees， houses， animals or people. Sometimes big fire can bum forests.

　　Nobody knows for sure how people began to use fire. But there are many interesting stories about the first time a man or a woman started a fire. One story from Australia tells about a man very， very long time ago. He went up to the sun by a rope (绳子) and brought fire down.

　　Today people know how to make a fire with matches (火柴). Children sometimes like to play with them. But matches can be very dangerous. One match can burn a piece of paper， and then it might burn a house. A small fire can become a big fire very fast. Fire kills many people every year. So you must be careful with matches. You should also learn to put fires. Fires need oxygen (氧气). Without oxygen they will die. Cover a fire with water， sand or sometimes with your coat. This keeps the air away from a fire and kills it. Be careful with fire， and it will help you. Be careless with fire， and it will bum you.

　　31.    How did people begin to use fire？

　　A.    Not everybody knows how people began to use fire

　　B.    Nobody knows how to make a fire

　　C It is an Australian who started a fire

　　D. We are not sure how people began to use fire

　　【小升初英语团队解析】由原文” Nobody knows for sure how people began to use fire. “可知，人类是如何开始使用火的，人们都丌确定。故选 D。

　　32. Children mustn’t play with matches because

　　A. matches bum paper    B. isn‘t interesting

　　C. they can be dangerous    D. they can bum a house

　　【小升初英语团队解析】由原文”But matches can be very dangerous.“可知，火柴十分危险。

　　故选 C。

　　33. When you are going to put out a fire， you，

　　A. must be careful B. should keep air away from it C. must know it is dangerous D. should cover it with water

　　【小升初英语团队解析】由原文”Fires need oxygen (氧气). Without oxygen they will die.This keeps the air away from a fire and kills it.“可知，要扑灭火应使其不空气隔绝，故选 B。

　　34. We must be careful with fire， or it

　　A. will die

　　C. might bum us

　　B. will warm our houses

　　D. won’t help us

　　【小升初英语团队解析】由原文”Be careful with fire， and it will help you. Be careless with fire， and it will bum you.“可知，若丌当心火可能会烧伤人类，故选 C。

　　35.    Which of the following is the main idea of this passage？

　　A. Fire can help people in many ways.

　　B. Fire can be both helpful and dangerous

　　C. Fire can bum things and people

　　D. We must be careful with matches

　　【小升初英语团队解析】通读全文，第一段主要介绍火的好处，第二段主要介绍人类用火的起源，第三段主要介绍火的弊端，以及失火的应对措施。由文章开头” Fire can help people in many ways. But it can be very dangerous.“结尾”Be careful with fire， and it will help you. Be careless with fire， and it will bum you.

　　“可知选 B。