41. Deserts ________ .
A. never have any plants or animals in them B. can all be turned into good land before long
C. are becoming smaller and smaller D. get very little rain
42. Land is becoming desert little by little because ______.
A. plants can’t grow there B. there is not enough rain
C. people haven’t done what scientists wish them to do
D. scientists know little about the deserts
43.After reading this passage,we learn that ________ .
A. plants can keep dry land from becoming desert
B. it is good to get rid of the grass in the deserts
C. all places without much rain will become deserts
D. it is better to grow crops on dry land than to cut them
B
Henry Ford was the first person to build cars which were cheap,strong and fast.He was able to se11 millions of models because he could produce them in large numbers at a time;that is,he made a great many cars of exactly the same kind.Ford’s father hoped that his son would become a farmer,but the young man did not like the idea and he went to Detroit(底特律)where he worked as a mechanic(机械师).By the age of 29,in 1892,he had built his first car.However,the car made in this way,the famous “Model T did not appear until 1908-five years after Ford had started his great motor car factory.This car showed to be well-known that it remained unchanged for twenty years.Since Ford’s time,this way of producing cars in large numbers has become common in industry and has reduced the price of many goods which would otherwise be very expensive.
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