难句突破：
(1) On the face of things, a fall in the number of people infected with HIV (the virus that causes AIDS) from 39.5m to 33.2m over the course of a single year, as reported in this year's AIDS epidemic update from the World Health Organisation (WHO) and UNAIDS, should be cause for rejoicing.
[主体句式]A fall should be cause for rejoicing.
[结构分析] 这是一个简单句。On the face of things是句子的状语，而as 引导的定语从句是用来修饰前面的a fall in the number…。
[句子译文] 世界卫生组织和UNAIDS报告的本年度艾滋病最新数据表明，在短短一年的时间内感染HIV(引发艾滋病的病毒)的人数从3950万人减少到3320万人，表面上来看这确实令人欣喜。
(2) But they are also a reflection of the hard graft of public-health workers in many countries, who have persuaded millions of people to modify or abandon risky behaviour, such as having unprotected sex, as they have also created the medical infrastructure needed to distribute anti-retroviral drugs that can keep symptoms at bay in those who do become infected.
[主体句式] But they are also a reflection of …
[结构分析] 这是一个复合句, 表语的定语结构比较复杂；在该定语中，who引导的定语从句修饰前面的workers，后面such as结构用来修饰risky behaviour； such as后面是两个并列的成分， 一个为动名词短语，一个是句子；在这个并列成分的句子中，有一个以that引导的定语从句用来修饰drugs。
[句子译文] 但是也反映了许多公共卫生工作者的努力，他们成功说服了成百万上千万的人们改变或者放弃危险的性行为、如没有任何保护措施的性行为，他们还建立了医疗基础措施来分发反逆转药物，这种药物可以让那些已经被感染的患者症状消失。
题目分析：
1. Though the number of infected individuals has risen, it is still worth rejoicing because_____ 1. 尽管感染艾滋病的人数上升了，但是还是值得高兴，因为_____
[A] the number of people who are dying from AIDS has decreased. [A] 死于艾滋病的人数减少了。
[B] the total size of the epidemic is shrinking in a significant extent. [B] 这种传染病整体的数量下降了。
[C] it is only a rise in the sense of statistics, instead of a real number. [C] 这只是统计上的增加，而不是实际数目的增加。
[D]in the paradoxical world of AIDS bad news can turn out to be good news. [D] 在荒谬、是非颠倒的艾滋病世界中，坏消息也能变成好消息。
[答案]A
[难度系数] ☆☆☆☆
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