题目内容
12.Inventions All Around UsEvery invention has a story.These stories often have a lesson to teach,too.Here are the stories of some everyday household inventions.
Canned Food and the Can Opener-Get It Right!
Peter Durand invented canned food in 1810,but there was a problem.Durand didn't have a good way to open the cans.In 1858,Ezra Warner invented a can opener.It used a piece of metal to cut and remove the top from the can,but it was difficult to use.Finally,in 1870,William Lyman added a wheel to the can opener.The metal went around the top of the can and removed it easily.Finally,people were able to open cans without a lot of work.Canned food was soon popular.
Frozen Food-A Little Good Luck Can Help!
Clarence Birdseye had the chance to go on a trip to如e Arctic.When people there caught fish,they put the fish in a container (容器) of ice to freeze it quickly.When people cooked the fish later,it was still good!This gave Birdseye an idea.He thought people could also have this kind of food at home.In 1926,Birdseye invented frozen food.People were able to store food in freezers for a long time.
Air Conditioning-One Answer to Two Problems!
Printing companies make books,so they use a lot of paper.Sometimes,changes in the weather can hurt the paper.In 1902,Willis Carrier invented air conditioning to control the temperature inside his printing company.This saved the paper.People soon realized other benefits of air conditioning.They started to air condition their homes in the summer.Carrier's invention changed the world!
44.When was canned food invented?A
A.In 1810.
B.In 1870.
C.In 1902.
D.In 1926.
45.After the trip to the Arctic,Clarence Birdseye inventedC.
A.canned food
B.can openers
C.frozen food
D.air conditioning
46.Changes in weatherB in Willis Carrier's company.
A.helped to keep food
B.hurt printing paper
C.caused health problems
D.made rooms comfortable
47.According to the passage,which of the following may lead to inventions?A
A.People's needs.
B.Public support.
C.Modern technology.
D.Practical suggestions.
分析 我们身边的发明
每个发明都有一个故事,这些故事常常也能是一次经验.这里是一些日常家用发明的故事.
罐头食品和罐头开启器
皮特在1810年发明了罐头,但是还有一个问题.他没有一个好的方法去开罐头.1858年,埃兹拉发明了开罐器.用一个铁片将罐头的上部移开,但是用起来很困难.最后,1870年,威廉加了一个轮子在开罐器上.铁片沿着罐头的上部转一圈很容易就能打开了.最后,人们能轻易的打开罐头.很快罐头就流行起来.
冷冻食品
克拉伦斯•伯宰有了一次去北极的机会,当那里的人们捕到鱼,他们放进一个装着冰的容器里很快的冷冻起来,之后拿出来烧的时候,鱼还是好的.这个让克拉伦斯•伯宰有了启发,他认为人们也能在家里有这种食物.1926年克拉伦斯•伯宰发明了冷冻食品.人们能将食物冷冻很长时间.
空调
印刷公司出版书,所有他们用大量的纸张.有时候,天气的变化能损坏纸张.1902年,威利斯•开利发明了空调在他的印刷公司控制温度,这样能节约纸张.人们很快意识到空调的好处,他们开始在夏天在家里用空调.威利斯•开利的发明改变了世界.
解答 44.答案:A.细节理解题.根据Peter Durand invented canned food in 1810可知是1810年发明的罐头食品,故选A.
45.答案:C.细节理解题.根据In 1926,Birdseye invented frozen food可知在去北极之后他发明了冷冻食品,故选C.
46.答案:B.细节理解题.根据Sometimes,changes in the weather can hurt the paper可知是纸张受害,故选B.
47.答案:A.推理判断题.本文讲的三个发明都是日常家用的发明,故可知只要人们有需要就会有发明,故选A.
点评 要善于抓住每段的主题句,阅读时,要有较强的针对性.对于捕获到的信息,要做认真分析,仔细推敲,理解透彻,只有这样,针对题目要求,才能做到稳、准.