题目内容

【题目】—________exciting news it is!

—Yes, ________great Li Na is! She got the first place

A.What;HowB.How; WhatC.What an; HowD.How an; What

【答案】A

【解析】

句意:这是多么令人兴奋的消息啊!是的,多么伟大的李娜!她获得了第一名。

考查感叹句。根据选项和句子的标点符号,可知是在考查感叹句。根据第一空格所在句,可知句子的主语为it,be动词为is,主语前是exciting news(属于名词短语,且为不可数名词),符合感叹句的结构:What+形容词+不可数名词+主语+谓语!故第一个空格填what;第二个句子的主语是Li Na,be动词是is,主语前是great(形容词),符合感叹句的结构:how+形容词+主语+谓语!故第二空格应该填how。故选A

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【题目】 Today there are many fires than in the past. Over 100.000 wildfires burn each year in America.Russia has 20,000 to 35,000 wildfires every year. Australia has on average 60,000 each year. These fires destroy huge areas of forests and burn hundreds of homes.

Many experts believe there are several reasons for this sudden increase in fires. The first reason is climate(气候) change. Recent weather has been warmer and drier. This leads to dangerous fire conditions. When lightening strikes( 发生雷电) dry grass easily catches fire. Hot winds add to the problem. The wind spreads a fire quickly. In 2010, Russia had the hottest and driest summer in a century. In just one month, 500 fires destroyed over 2,000 homes. Some people lost their lives.

Traditional fire-fighting practices are another reason for the increase in fires. In America, firefighters used to quickly put out every fire .They didn't allow the grass and trees to burn. As a result, today many forests have thicker vegetation. Thicker vegetation means more fuel(燃料) for fires. Also, without fires from time to time, forests become overcrowded and unhealthy. Some trees are dead.The dead wood then easily catches fire. So surprisingly, America has many more fires today partly because of its past fire-fighting- practices.

Scientists now understand that a fire can be a natural part of a healthy forest. As a result, countries like Australia allow more fires to bum naturally. Sometimes. fire fighters even start fires to get rid of(去除) dead wood. Of course, they carefully control the fires. The fire thins out old trees. This allows sunlight to reach the ground. As result, fires help new trees to grow. Therefore, if a fire is not a serious threat(威胁) to people, firefighters may let it burn naturally

1Why did Russia have so many fires in one month in2010?

A.Because lightening spread the fire.B.Because there was much fuel for fires.

C.Because there were not enough firefighters.D.Because it was unusually hot, dry and windy.

2What happens because of the traditional fire-fighting practices in the USA?

A.There are fewer wildfires.B.Trees and grass become thicker.

C.The weather becomes warmer and drier.D.Sunlight reaches the ground to help forests.

3What is the main idea of Paragraph 4?

A.Fires are serious threats to human beings.B.Australian firefighters don't put out fires.

C.Fires can play an important role in forests.D.It's difficult for firefighters to control the fires.

4Which of the following is true according to the passage?

A.Not all the fires in the forests must be put out.B.People's carelessness leads to dangerous fires.

C.Australia allows all the fires to burn naturally.D.There are more fires in Russia than in the USA.

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