答案：A 细节理解题。导火线开始平稳燃烧，到最后会达到引爆点而爆炸，而人口的发展亦是如此。
7．During the first period of demographic history, societies were often in danger of extinction because ________.
A．only one in ten persons could live past 40
B．our ancestors had little enthusiasm for more children C．there was higher mortality than fertility in most places D．it was too dangerous to have babies due to the poor conditions
答案：C 细节理解题。根据第二段“because death rates could exceed their birthrates”可知。 8．The author of the passage intends to ________.
A．warn people against the population explosion in the near future B．find out the cause of rapid increase in population in recent years C．present us a brief and clear picture of the demographic growth
D．compare the demographic growth pattern in the past with that after 1650
答案：C 主旨大意题。根据文章首段作者把“人口问题”与“导火线”作比较以及最后一段列举的一些数字可知，作者很客观地陈述人口增长的情况。
W重点词汇
1．global adj. 全球的 2．current adj./n. 当前的；通用的；流
3．exceed vt./vi. 超过；胜过 4.approximately adv. 大约 5．abstract adj. 抽象的 P重点短语
1．in danger of 处于危险中 2.at present 目前，现在 S句式仿写
原文：To understand the current situation, which is characterized by rapid increases in population, it is necessary to understand the history of population trends.(不定式作目的状语)
译文：为了理解当前的形势——以人口快速增长为特点——有必要理解人口发展的趋势。
仿写：To_make_herself_understood,_the interpreter was busy explaining carefully the terms involved in the contract and how they accounted for the profits.
为了让对方明白，这位翻译正仔细解释合同中的条款及这些条款如何带来利益。
Ⅲ.短文改错(建议用时8′)
[2016·石家庄高三联考]I am writing to apply a scholarship in Harvard University for the bachelor's Degree in your university. Here is my personal informations for you.
I was born in 1995 in Henan. I am admitted to Xiwang High School with high scores in 2012 and will graduate from this June. During my three school years, beside my high school subjects such as Chinese, English, physics and chemistry, I also take advanced maths in an nearby college.
I have made straight A's on all requiring subjects. I have passed CET－4 but kept on learning English all these years. So I don't think you will have any problems in the English language during my study in your country.
I am looking forward to your early reply on qualifications for an internationally student.
答案：
I am writing to apply ∧ a scholarship in Harvard University for the bachelor's Degree in
for
your university. Here is my personal informations for you.
information
I was born in 1995 in Henan. I am admitted to Xiwang High School with high scores in
was
2012 and will graduate this June. During my three school years, beside my
besides
high school subjects such as Chinese, English, physics and chemistry, I also take advanced maths in an nearby college. I have made straight A's on all requiring subjects. I have passed CET－4
a
required
but kept on learning English all these years. So I don't think you will have any problems in the
and
I
English language during my study in your country.
I am looking forward to your early reply on qualifications for an internationally student.
international
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