Unit 2 Cloning learning about language课时作业

Ⅰ.阅读理解

(2018·浙江"五校联考")

　　Ninety percent of Americans drive to work every day although working from home is on the rise.If you're lacking for topics of conversation at a party，chatting about your commute is a pretty safe bet.

　　According to a recent study，driving for more than two hours each day can steadily decrease the IQ of middle aged drivers.The Sunday Times of London detailed the study，which looked into the lifestyle choices of over 500,000 Britons between the ages of 37 and 73.

　　When looking at the data of the 93,000 participants who drove more than two to three hours per day，the study found a noticeable drop­off in brainpower，measured by intelligence and memory tests.The study found similar results with participants who took part in several hours similarly sedentary(久坐的) activity，like television watching.

　　As it turns out，stimulating activity stimulates your brain，while non­stimulating activity，well，doesn't stimulate your brain.

　　"Cognitive(认知的) decline is measurable over five years because it can happen fast in middle­aged and older people.This is associated with lifestyle factors such as smoking and bad diet-and now with time spent driving，" Kishran Bakrania，a medical epidemiologist at the University of Leicester told the Times.

　　Fortunately for most Americans，the average commute time was recorded at approximately 26.5 minutes according to the 2015 United States Census.

　　And if you think that the way to pump up your IQ is through brain games，think again.Just try and avoid those long hours on the road if possible，and if you happen to have free time on your commute，be sure to use it wisely.

1．According to the passage，which of the following may be of help to our brainpower?

A．Watching TV. B．Having sports.

C．Driving long time. D．Sleeping.

2．Why does the writer mention "results with participants who took part in several hours similarly sedentary activity" in Paragraph 3?

A．To make a contrast.

B．To give an example.

C．To make a description.

D．To give more evidence.

3．We can infer from the passage that .