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1、2019年中考英语完形填空专练(精选真题试卷+答案，值得下载打印练习)先通读下面四篇短文，掌握其大意，然后从A、B、C、D四个选项中选择可以填入空白处的最佳答案。AIm Steve and I teach science in a secondary school. I also1all the computers and computer systems in the school. I really love working with young people. My job can be stressful because students2have a lot of questions
2、 about science and there are almost no simple answers to give them. When the computer systems3working, it is my job to solve the problem. That is really exciting.Im always busy. After school hours, I hold a computer club4students. Its great fun, but we dont play games its serious business!I love my
3、job and to a young person who wants to be a5like me, I would say, “Make sure you know your subject very well.”( )1. A. worry about B. pay for C. keep clear of D. take care of( )2. A. also B. ever C. always D. still( )3. A. try B. stop C. finish D. continue( )4. A. to B. for C. about D. in( )5. A. te
4、acher B. manager C. scientist D. businessmanBIn 1806, Napoleon Bonaparte, the ruler ofFrance, had a problem. Hed1his sugar-growing islands in theCaribbean. He2buy sugar from his enemies. So where was he going to get sugar to keep his people happy?Napoleon knew that years before, a German scientist h
5、ad3that all plants have sugar. And he had even found one almost as4as sugarcane (甘蔗)the white beet (甜菜)!Napoleon ordered his science team to find out5to get the sugar out of the beets. They soon did. This changed6! Sugar beets can7inthe cold north, instead of on tropical (热带的) islands. And because b
6、eets (unlike sugarcane) can be stored for a long time, they could be shipped far away. So sugar factories didnt have to be8the farms.Soon, sugar beet farms spread all over Europe andRussia, and later in theUnited States.9Napoleons enemies loved cheap beet sugar.During WWII, farmers in bothAmericaand
7、Germanywere asked to grow sugar beets so that their countries would have10sugar.Today, about half the table sugar in the world comes from beets, and half from sugarcane.( )1. A. lost B. found C. forgotten D. remembered( )2. A. could B. couldnt C. need D. neednt( )3. A. joked B. suggested C. imagined
8、 D. discovered( )4. A. heavy B. sweet C. beautiful D. fresh( )5. A. why B. how C. when D. where( )6. A. nothing B. anything C. everything D. something( )7. A. mix B. grow C. fall D. change( )8. A. near B. behind C. through D. between( )9. A. Even B. Perhaps C. Once D. Yet( )10. A. real B. special C.
9、 enough D. expensiveCScientists believe the earth is 4.6 billion years old. However, the mountains, valleys (山谷), rivers, deserts and forests we see today are much1than that. For example, Qomolangma is about 60 million years old and the Amazon Rainforest is about 55 million years old. TheBaltic Sea,
10、 the youngest sea in the world, is2about 15,000 years old.The earth is always3because of volcanoes (火山), earthquakes and, of course, wind and rain. Some of these changes are very4and others are quick. Water and ice can make very big changes to the planet.5, glaciers (rivers of ice) can cut through m
11、ountains and make deep valleys.Its6for our planet to change. But at the moment scientists think its changing faster than usual. They dont understand everything that is happening but they know that7are rising. Besides, the weather is getting wetter in some places and drier in others, and there are mo
12、re big storms.However, these changes are not bad for everyone.8the Arctic (北极) is getting warmer, some people in Greenland now own (拥有) businesses that grow and sell vegetables. That wasnt950 years ago. Farmers inGreenlandlike the warm weather and10it will continue.( )1. A. older B. bigger C. smalle
13、r D. younger( )2. A. hardly B. only C. rather D. forever( )3. A. falling B. moving C. changing D. giving( )4. A. slow B. usual C. bad D. clear( )5. A. In fact B. In total C. After all D. For example( )6. A. interesting B. possible C. normal D. important( )7. A. costs B. prices C. levels D. temperatures( )8. A. Though B. If C. Because
