Eachyearthereisanincreasingnumberofcarsonroadsandstreet...
問題詳情:
Each year there is an increasing number of cars on roads and streets as millions of new cars and trucks are produced. One out of every six Americans works at putting together the parts of cars, driving trucks, building roads or filling cars and trucks with gas. 31
Most Americans would find it hard to imagine what life would look like without cars. 32 The polluted air becomes poisonous and dangerous to health.
33 That’s what several of the large car factories have been trying to do. But to build a clean car is easier said than done. Progress in this field has been slow.
Another way is to take the place of the car engine by something else. 34 Many makers believe that it will take years to develop a practical model that pleases man.
To prevent the world from being polluted by cars, we’ll have to make some changes in the way many of us live. Americans, for example, have to cut down on the number of their total cars. They are encouraged to travel and go to work by bicycle. Bicycling is thought to help keep the air clean. But this change does not come easily. A large number of workers may find themselves without jobs if a car factory closes down. 35
Although cars have led us to a better life, they have also brought us new problems.
A. Thus the problem of air pollution would become less important than that of unemployment.
B. Americans know cars very well.
C. However, some have realized the serious problems of the air pollution that is caused by cars.
D. One way to get rid of the polluted air is to build a car that does not pollute.
E. However, the number of vehicles(車輛) has continued to increase in recent years.
F. Americans won’t live without cars!
G. Inventors are now working on steam car as well as electric cars.
【回答】
FCDGA
知識點:七選五題型
題型:未分類
-
如圖中,A、B、C、D、E是單質,G、H、I、F是B、C、D、E分別和A形成的二元化合物,已知:①反應C+G ...
問題詳情:如圖中,A、B、C、D、E是單質,G、H、I、F是B、C、D、E分別和A形成的二元化合物,已知:①反應C+G B+H能放出大量的熱,G是紅綜*固體粉末;②I是一種常見的溫室氣體,它和E可以發生反應:2E+I2F+D,F中的E元素的質量分數為60%.回答問題: ⑴①中反應的化學方程式為 ...
-
用若干個體積為1的正方體搭成一個幾何體,其正檢視、側檢視都是如圖所示的圖形,則這個幾何體的最大體積與最小體積的...
問題詳情:用若干個體積為1的正方體搭成一個幾何體,其正檢視、側檢視都是如圖所示的圖形,則這個幾何體的最大體積與最小體積的差是()A.2B.3C.4D.5【回答】解析:由正檢視、側檢視可知,此幾何體的體積最小時,底層有5個小正方體,上面有2個小正方體,共7個小正方體;體積最大時,底...
-
—Thestateofillnessiscomplicated.Weneedanexperienceddoct...
問題詳情:—Thestateofillnessiscomplicated.Weneedanexperienceddoctor.—Whomwouldyouliketohave____? A.sentfor B.sendfor C.tosendfor D.beens...
-
“吃得營養、吃出健康”是人們普遍的飲食追求,下列說法不正確的是A.人每天都應攝入一定量的蛋白質B.過量食用油脂...
問題詳情:“吃得營養、吃出健康”是人們普遍的飲食追求,下列說法不正確的是A.人每天都應攝入一定量的蛋白質B.過量食用油脂能使人發胖,故應禁止攝入油脂C.糖類是人體能量的重要來源D.過量攝入微量元素不利於健康【回答】B知識點:各地會考題型:選擇題...
相關文章
- Herearetwolettersfromourreadersexpressingtheirconcernab...
- I’verecentlyreturnedfromatriptoChinawhereStarbuckssigne...
- 單項選擇。WheneverMaryreadsaninterestingstory,shecan'tkeepit...
- Oneofthemostinspiringquotes(名言)IeverheardwasbyBrianTrac...
- Formorethantwentyyearsscientistshavebeenseekingtounders...
- Socialnetworkingisn’tonlyfortheunder40s.Morethan25perce...
- 單項選擇。WheneverMaryreadsaninterestingstory,shecan'tkeepit...
- 單項選擇。WheneverMaryreadsaninterestingstory,shecan'tkeepit...
- 單項選擇。WheneverMaryreadsaninterestingstory,shecan'tkeepit...
- InternetSecurityAwarenessMS-ISAC“KidsSafeOnline”2017Vir...