Question

【題目】閱讀下列短文，從下面每小題的A、B、C、D四個選項中選出最佳選項。D

	All people know that trees are important to us. Scientists believe our life would not be possible if there are no trees on Earth.
	People and animals need oxygen to exist. Without it, most living things will die. But where does oxygen come from? Trees. Trees can take in much carbon dioxide and produce oxygen for us to breathe. Too much carbon dioxide is bad for our environment.
	Trees are a major source of food. Apples, oranges, lemons all come from trees. People and animals knew how to get food from trees many years ago.
	In fact, many kinds of important medicine come from trees too. Some special things in trees can be used to produce medicine. Also, trees make environments more beautiful and relaxing. They help protect the soil.

（1）What does the underlined word "exist" mean?
A.Drink.
B.Eat.
C.Live.
D.Work.
（2）Which of the following may damage (危害) our environment?
A.Oxygen.
B.Medicine.
C.Food.
D.Carbon dioxide.
（3）What does the passage mainly tell us?
A.Trees are important to animals.
B.Animals need oxygen to breathe.
C.Trees can help people and animals in many ways.
D.There are few trees in the world now.
（4）Where may we read this passage?
A.In a plant magazine.
B.In medicine instructions.
C.In a storybook.
D.In a cookbook.

Answer 1

【答案】
（1）C
（2）D
（3）C
（4）A
【解析】文主要向我們介紹了樹木可以從很多方面幫助人類和動物。
（1）詞義猜測題，根據(jù)第二段 People and animals need oxygen to exist. 可知人們和動物的生存需要氧氣，故選C。
（2）細(xì)節(jié)理解題，根據(jù)第二段Too much carbon dioxide is bad for our environment.可知太多的二氧化碳對我們的環(huán)境有害，故選D。
（3）細(xì)節(jié)理解題，根據(jù)第一段Scientists believe our life would not be possible if there are no trees on Earth.第二段Trees can take in much carbon dioxide and produce oxygen for us to breathe.第三段Trees are a major source of food. 第四段many kinds of important medicine come from trees too可知本文主要向我們介紹了樹木可以從很多方面幫助人類和動物，故選C。
（4）文章出處題，通讀全文可知本文是關(guān)于樹木對我們的好處的文章，因此可能來自于一個植物雜志，故選A。