2022年英语专八考前复习冲刺（13）
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The growth of the world’s population and its pressure to resources __1__ threaten to change the quality of life as we know it. It takes __2__ 100,000 years of human existence for the world to reach its 1997population of 5.85 billion people. The increase of 80 million people in 1996 alone is the equivalent of a new U.S population every 3.4years or new Canadian population every 138 days. The UN population Fund predicts that by the year 2050, the world population have __3__ exploded to 10 billion people. This would double in less than a century the already bulging population who existed when it reached __4__ 5 billion in 1987. The chemicals we spew into the air also cause disease.
For example, they attack the Earth’s ozone layer, which helps shield the Earth away the Sun’s deadly ultraviolet rays. It is well established __5__ that the ozone layer has thinned considerably during recent decades.Concomitantly, the rate of new cases of the dead skin cancer, __6__ melanoma, has grown dramatically from 1,168 of each 100,000 __7__ Americans to 3,650. This 213 percent increase means that 40,300 Americans diagnosed with melanoma in 1997 and 3,650 died of the __8__ disease. There are some scientists who believe that pollution is even threatening the ability of humans to produce. Chemicals which are __9__ used to make pesticides, plastic, and other products are finding their ways into the human food chain through fish and even through __10__ breast milk.
答案：
1.to—on。“给……造成的压力”应表述为 one’s pressure on something, 名次pressure通知和介词on搭配。
2.takes—took。句中的时间所指是1997年，所以必须用一般过去时。
3.popular--^will。这是一个时态问题。时间状语by the year 2050 是一个非常重要的信息，它表示将来的某一个时间点，这时主句应该用“将来完成体”will have done。
4.who—that/which。关系分句的先行词是population，尽管population的意思是“人口”，但是它的概念并不是somebody，而是something，所以关系代词应该用that或者which。
5.away—from。shield something from something 的意思是“遮挡……使得不受……的侵害”。
6.dead—deadly。deadly 表“致命的”。
7.each—every.表示频率“每……中有……”，这里应该用every，而不能用each，例如： once every week，不能说 once each week。
8.^diagnosed—were.diagnose(诊断)是一个及物动词，可以说be diagnose with/as…例如：
The child has been diagnosed as having flu.
9.produce—reproduce.produce 的意思是“生产，制造”，reproduce的意思是“生殖，繁殖”。
10.ways—way.find one’s way into something 意思是“(设法)走进，进入”。在这个表达中，way只以单数形式出现。这样的词组还有：push one’s way into, work one’s way into, elbow one’s way into等。
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