大学英语六级考试作文经典句型（6）

大学英语六级考试作文经典句型（6）177. lets take cars for example. they not only pollute the air in cities, but make

大学英语六级考试作文经典句型（6） 177. lets take cars for example. they not only pollute the air in cities, but make them crowded. furthermore, they are responsible for alot of traffic accidents. the noise made by cars disturbs the residents living on both sides of streets all day and night.就拿汽车为例。汽车不仅污染城市空气，而且使城市拥挤 不堪。此外，汽车造成很多交通事故。汽车所产生的噪音使居住在街道两 旁的居民日夜不得安静。 178. it is generally believed that the chief reason for the increase in population in developed countries is not so much the rise in birth rates as the decline in death rates as a result of the improvement in medical care.普遍认为，在兴旺国家人 口增长的主要缘由与其说是诞生率的上升，还不如说是由于医疗保健的改 善使死亡率下降了。 179. there is no doubt that the increase in demand caused the rise in prices.毫无疑问，需求的增长导致了价格的上涨。 180. additional social stresses may also occur because of the population explosion or problems arising from mass migration movements-themselves made relatively easy nowadays by modern