19．A kind of little cars may take the place of today's big ones many years later．If everyone drives such cars in the future，there will be less pollution in the air．There will also be more space for parking in cities，and the streets will be less crowded． The little cars of the future will cost less．Driving will be safer，too，since these little cars can go only 65kilometers an hour．The cars of the future will be fine for going around a city，but they will not be useful for a long way．Little cars will go 450kilometers before they need to stop for more gasoline （汽油）．If big cars are still used with the small ones，two kinds of roads will be needed in the future．Some roads will be needed for the big，faster cars and other roads will be needed for the small，slower ones． 根据短文内容，选择正确答案． 66．There is much pollution in the air today becauseA． A．people drive big cars B．people drive little cars C．small cars will go 450kilometers before they need to stop for more gasoline D．the usual size of cars today is too small 67．The usual size of cars today isD． A．much smaller than the future oneB．as big as the future ones C．as small as the future onesD．bigger than the future ones 68．Which of the following statements （陈述） is NOT true？B A．Big cars cost more． B．Big cars are not useful for a long way． C．The cars of the future will be smaller than today's cars． D．Small cars are slower than big ones． 69．The streets will be less crowded becauseD． A．there will be fewer cars in the futureB．there will be fewer people in the streets C．three kinds of roads will be builtD．future cars will be smaller 70．Two kinds of roads will be needed in the future becauseC． A．there will be too many cars in the future B．more and more people will go to cities C．big cars run faster and little cars run slower D．it looks more beautiful to have two kinds of roads．
16．Most people sleep at night，but Frank sleeps during the day and works at night．His work is to guard （看守） a large factory．He is lonely because nobody there talks with him in the evening． Frank likes his work．He knows that it is important to guard the factory at night．If he hears any noise，he goes quickly to see what it is．Most of the time he walks around inside the big building，but he also walks around outside．When he is tired，he can sit on a chair by the door．It is very cold in winter．He always wears a warm coat when he is working． One night when Frank went outside，he heard a noise near a dark corner of the factory．He went very quietly towards the noise to see if someone was there，but he only saw a small dog．Frank smiled and talked to the dog．It looked cold and sad．He took the dog inside the building，and the happy dog followed him around．During the rest of the night Frank was not lonely．A dog was a good friend for him． 根据短文内容，判断正（T）误（F）． 31．Frank sleeps at night and works in the day．F 32．Frank doesn't think his job is important．F 33．Sometimes Frank walks around outside the big building．T 34．One night Frank saw a little dog sleeping at the gate of the factory．F 35．Frank took the dog home at once．F．
18．How do you go to school？Do you take a bus or ride a bike？Formany students，it is easy to get to school．But for some children in one small village in Hunan，it is very difficult（困难的）．There is no road（路）between the village and the school．The children have to climb down ladders（爬下梯子） to get to school． Yu Xinxin is an 8-year-old girl．She climbs the ladders every day．"My parents are good at it and they tell me how to do it，and now I don't think too much about how high it is，"she says． It is hard for the villagers to get in and out of the village，too．Their dream is to have a road．
49．For the students in the small village，it isD to get to school． A．fun B．boring C．easy D．difficult 50．The students in the small villageD to get to school． A．cross a river B．cross a bridge C．go on a ropeway D．climb down ladders 51．划线单词"they"指代的是"C"． A．Yu Xinxin's teachers B．Yu Xinxin's classmates C．Yu Xinxin's parents D．Yu Xinxin's sisters 52．What does"high"mean（意思是）"B"？ A．重的 B．高的 C．宽的 D．直的．
