题目内容
【题目】根据句意，用所给单词的适当形式填空。
【1】Apple Corporation’s __________ (produce) are very popular all over the world.
【2】Wang Yaping, China’s __________(two) woman astronaut, gave us students a lesson about space science last year.
【3】We are certain about the result of the problem, but what caused it is still__________ (known).
【4】Chinese is __________ (wide) used in Southeast Asian countries like Singapore and Malaysia.
【5】I knew the earth ___________ (move) around the sun when I was very young.
【答案】
【1】products
【2】second
【3】unknown
【4】widely
【5】moves
【解析】
试题分析：
【1】句意：苹果公司的产品在全世界非常受欢迎。produce动词，是生产、制造的意思，根据句意可知，应用名词，故应填products。
【2】句意：王亚平中国的第二个女子宇航员，去年给我们学生上了关于太空科学的一课。two数词，是二的意思，根据句意可知，应用它的序数词，故应填second。
【3】句意：我们对问题的结果是肯定的，但是什么导致它仍然是未知的。known形容词，是已知的意思，根据句意可知，用它的反义词，故应填unknown。
【4】句意：汉语在东南亚国家像新加坡和马来西亚使用的很广。wide形容词，是宽、广的意思。根据句意可知，应用它的副词，故应填widely。
【5】句意：在我很小的时候，我就知道地球围着太阳转。如果宾语从句所表示的是客观事实、普遍真理、自然现象等，不管主句用什么时态，从句时态都用一般现在时。根据句意可知，the earth是单三，故应填moves。
【题目】Every time we turn on the TV or take a ride in a car, we could be adding to a problem called acid rain(酸雨). In this article, we’ll learn something important about acid rain.
The formation of acid rain
When people use fuels (燃料), such as coal and gasoline(汽油), poisonous gases are given off. When these gases come together with rain, acid rain forms. Many power stations burn fuels in order to create the electricity(电) that we use in our homes and offices every day. Cars and trucks also send these gases into the air when they burn gasoline. When rain meets these gases, harmful things called acids form. This is acid rain.
The harm of acid rain
Acid rain destroys everything that it touches. It poisons our rivers, ponds and lakes and oceans along with the life in them. It pollutes our soils and crops, harm trees, and can even kill fish and plants. Acid rain also eats away at our buildings.
The prevention of acid rain
We need to reduce and even stop the pollution that gets into our air. Turn off lights, televisions and other electrical appliances(电器) if we are not using them. Walk and take a bike whenever possible. If we are travelling a long distance, take a bus or train to save fuel.
As research shows, acid rain harms our environment. But people everywhere can take small steps now to help protect our environment for future generations.
Whenever we use electricity or drive our cars we may add something bad to the air around us. And even worse, we may cause a terrible problem—acid rain. | |
The formation of acid rain | When fuels, such as coal and gasoline are burnt, harmful gases are sent into the air. When these gases 【1】 with rain, acid rain forms. |
The harm of acid rain | Acid rain is greatly 【2】 to the environment. It makes our rivers, ponds and lakes and oceans dirty and 【3】 the death of fish and plants. And it can corrode (腐蚀) the buildings we live in. |
The prevention of acid rain | Trying to prevent the pollution that gets into the air is 【4】 . Keep the electrical appliances off while they are not in use. We can also use different ways of traffic to make less use of fuels. |
Research tells us that acid rain harms our environment. So people around the world can take small steps now to make a 【5】 to our kids. | |