题目内容
阅读下面短文,掌握其大意,然后从各题中所给的四个选项中,选出一个最佳答案.
How long can you expect to live? That is to say. 1 is the average life expectancy (寿命) for us?
The average life expectancy 2 from country to country, but for many countries nowadays, the average life expectancy is over 70 years. That 3 that the average 4 will live to be at least 70 years old.
Actually, in the United States in 1980, the average life expectancy was 73.8 5 . This age is a little 6 than the average life expectancy in 1970 -- 70.8 years.
In fact, if you look at the average life expectancy 7 for this century, you'll see that the 8 gets higher every year. For instance, in 1900 it was 47.3, in 1910 it was 50, in 1920 it was 54.1, 1930 was 59.7, 1940 was 62.9, 1950 was68.2, and in 1960 the average lifetime was 69.7 years.
9 does the average life expectancy 10 getting higher and higher? The main 11 are related to 12 care. First, health care, 13 general health care for 14 children has 15 steadily. Second, a large number of 16 have been 17 in the past 40 or 50 years. These 18 drug can prevent and cure many 19 that used to be fatal (致命的) in the 20 .
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解析:
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(1) D 此处需要一个代词作表语,which指有限的数量范围中的“哪一个”. (2) C 句意是“各国人平均寿命是不同的”. (3) B 此句是对上句作出解释说明.mean意为“意味着”. (4) D live这一动作不可能由A、B项的名词发出;此处侧重不分性别的某个“人” (5) A 具体寿命是用“岁(year)”来表示的. (6) C “年纪,寿命(age)”是有大小、高低、长短之分,没有早晚(late)、老少(old)之分;big是侧重体积方面的,且下文有提示…gets higher…. (7) D information“信息,资料”,包含了A、B、C三项的内容. (8) B 本文讨论的是人的平均寿命. (9) A 此段解释寿命增高的“原因”. (10) C keep doing sth.意为“继续做某事,继续某种状态”. (11) D 下面给出的是回答这个问题(why)的两点“理由”. (12) A 下中提示:health care,且health care的含义最为丰富,包含了其余三项的含义. (13) C especially意为“尤其是,特别是”specially意为“主要的,专门地”;exactly意为“精确地”;actually意为“实际上”. (14) B 此句没有比较对象,排除A项;据文意此处是强调对幼小(young)儿童的健康护理. (15) D 此句句意为“健康护理,特别是幼小儿童的健康护理已经在逐步地得到改善”. (16) 下文中的提示:These (powerful) drugs…drug可指“各科药物”;medicine指“内服药”. (17) C 此句句意为“大量的药物地过去40或50年里被研制开发出来”. (18) B 能防病和治病的药是“很有效力的,作用大的(powerful)”.powerful比effective的语气更强,效用更显著;strong指“强有力”但不一定“有效”. (19) A disease 指有规律地发作的,病因清楚的某种“疾病”;sickness 和illness都指使身体感到不适的“病、疾病”,对身体影响不如disease强烈. (20) D used to be 提示此处是一个表示过去的时间状语. |