2020届高考英语二轮复习题型精准练4 -阅读理解（主旨大意题）
1、ipadair2 Languages have been coming and going for thousands of years, but in recent times there has been less coming and a lot more going. When the world was still populated by hunter-gatherers,small, tightly knit (联系)groups developed their own patterns of speech independent of each other.Some language experts believe that 10,000 years ago, when the world had just five to ten million people, they spoke perhaps 12,000 languages between them.
Soon afterwards, many of tho people started ttling down to become farmers, and their languages too became more ttled and fewer in number. In recent centuries, trade, industrialisation, the development of the nation-state and the spread of universal compulsory education,especially globalisation and better communications in the past few decades, all have caud many languages to disappear, and dominant languages such as English, Spanish and Chine are increasingly taking over.
南瓜馒头的做法 At prent, the world has about 6,800 languages. The distribution of the languages is hugely uneven. The general rule is that mild zones have relatively few languages, often spoken by many people, while hot, wet zones have lots, often spoken by small numbers. Europehas only around 200 languages; the Americas about1,000; Africa 2 400; and Asia and the Pacific perhaps 3,200, of which Papua New Guinea alone accounts for well over 800. The median number (状物作文400字中位数)of speakers is a mere 6,000, which means that half the world’s languages are spoken by fewer people than that.
甲泼尼龙 Already well over 400 of the total of, 6,800 languages are clo to extinction(消亡), with only a few elderly speakers left. Pick, at random, Busuu in Cameroon (eight remaining speakers),Chiapaneco in Mexico(150), Lipan Apache in the United States(two or three)or Wadjigu in Australia (one, with a question-mark): none of the ems to have much chance of survival.
1.What can we infer about languages in hunter-gatherer times?
A.They developed very fast. B.They were large in number.
C.They had similar patterns .D.They were cloly connected.
2.Which of the following best explains “dominant” underlined in paragraph 2?
A.Complex . B.Advanced. C.Powerful .D.Modern.
3.How many languages are spoken by less than 6,000 people at prent?
A.About 6,800 B.About 3,400 C.About 2,400 D.About 1,200
4.What is the main idea of the text?
A.New languages will be created.
B.People's lifestyles are reflected in languages.
四六级报名入口C.Human development results in fewer languages.
D.Geography determines language evolution.
2、Would you buy a car that relead calming smells into the air when you are stuck in heavy traffic? Would you buy a robot that smells like a human being?
Many people have en the 3-D computer-made environments of virtual (失恋伤感的句子虚拟的）reali
走路时心率多少正常ty (VR). Now the virtual worlds will not just look and sound real. Rearchers have created VR environments that even smell like the real things. With the new technology， urs open a virtual door and step into a new environment, like a rainforest. After they enter this virtual world, special equipment releas forest-like smells into the air to make the experience em more real.
Suzanne Fisher-Murray said "It is a really wonderful experience that you have becau you reexploring this environment and you have smells with it."
In the United States, Smell-O-Vision was designed to provide smells during the showing of a movie. The Smell-O-Vision system was once popular in the 1960s. Now, Emanuela Maggioni says it is clo to becoming popular again, "People will be impresd by the connection with emotions，memories，and …红楼梦读后感结尾the n of smell，" Maggioni said. "It is unbelievable what we can do with technology."
The us for smell technology are not just limited to films and the performing arts. Rearchers showed a computer program where urs could imagine themlves driving
a car. The system included a special smell-spraying machine. Dmitrijs Dmitrenko said，"We want to deliver the smell of lavender (薫衣草）every time the person drives over the speed limit. We choo lavender becau it’s a very calming smell. "
Scientists are experimenting with smell instead of sounds or image-bad alerts on telecommunications equipment. And business are already using smell to influence people’s behavior. "Not only…in stores…But on the other side，you can create and stimulate (刺 激）immediate buying, " Maggioni said "So you’re in a library and you smell coffee and actually you are unconsciously having the need to drink a coffee. "
