b. Chlorine and other disinfectants are enough to clean the water.
c. All germs can live in a pool only for a few minutes.
d. Crypto can cause a diarrheal illness.
【正确答案】
D
【答案解析】[解析]
Chlorine and other disinfectants do indeed help to clean the water, but cryptosporidium may live in pool water for several days. Crypto causes a diarrheal illness and may rinse off the bodies of infected people or diapered children into the pool. If you swallow infected pool water, you may become sick. Other germs may live for a few minutes or a few hours in a chlorinated pool.
[难点] 此题中医学专有名词如“Chlorine”、“cryptosporidium”等很多，给考生听力和理解都带来了—定的困难。 a、b、c选项均为干扰项，文段中都有提及，所以要把握好关键词。第一句的indeed和but表明第一句是在肯定一个事实，但是也指出还有不同情况。 c项容易被排除。d项可以听到原句，所以选d。
单选题
Which of the following statements is true?
a. George Smoot is the physics prize winner.
b. The physics prize is for the work on probing the origins of the
universe.
c. Sommt says they have a satellite to map an infant universe before the Big
Bang.
d. They showed that the stars and planets are in shape at the very beginning
of the infant universe.
【正确答案】
B
【答案解析】[解析]
NASA scientist John Mather and his colleague George Smoot of the University of California are getting the physics prize for their work on probing the origins of the universe. As Smoot explains, they used measurements from the Cosmic Background Explorer, or COBE, satellite to create a map of the infant universe just after the Big Bang, which showed irregularities that would become the galaxies, stars and planets that later came into being.
[难点] 该题专有名词较多，会干扰到听力和理解。但整个文段比较通俗易懂，考的是细节信息的捕捉。根据“after the Big Bang”、“irregularities”等这些信息可以排除c、d两项。a项的干扰最大，因为“George Smoot”也是获奖人之一，容易造成误选。
单选题
Which of the following statements is ture?
a. It is found that different diseases often appear together.
b. Cholera and Malaria are bound together.
c. The malaria parasite is spread through sex or intravenous drug
users.
d. HIV can spread by mosquitoes.
【正确答案】
A
【答案解析】[解析]
Public health authorities often find that different diseases are clustered together. Cholera and typhus, for example, are both common results of unhygienic water supplies. But in other cases the link is not obvious. Malaria and AIDS are two of the most devastating diseases around, and many areas have high rates of both. The malaria parasite is spread by mosquitoes, and HIV is typically spread through sex or when intravenous drug users share needles.
[难点] 此题中有关疾病的专有名词较多，但是主题非常明确，所以这些专有名词并不是考点，不影响做答。第一句是整个段落的主旨句，也是最关键的突破口。得到这个主题信息，很容易选出正确答案a。
单选题
What is Solstice like?
a. On that day, the night is the longest during a year.
b. On that day, the daytime is the longest during a year.
c. On that day, people will celebrate the coming of the dawn.
d. It is one of the most popular festival in west country.
【正确答案】
A
【答案解析】[解析]
This is the night of Solstice, the longest night of the year. Now Darkness triumphs and yet gives way and changes into Light. The breath of Nature is suspended. All waits while within the cauldron the Dark King is transformed into the Infant Light. We watch for the coming of the dawn when the Great Mother again gives birth to the child Sun who is the bringer of hope and the promise of summer. We turn the wheel to bring the Light. We call the sun from the womb of Night.
[难点] 此题比较容易，是常识性知识。第一句话就已经解释了“solstice”，即使不知道这个单词的意思，从它的解释当中也可以推出是冬至日。选项a很明显是第一句话的另外一种表达方式，符合事实。
单选题
How does Global Fund work?
a. It collects money from the general public.
b. It has a common reserve of $6.3 billion from developed country.
c. The judge of the detailed proposal is based on politic.
d. Whether to renew the fund or not is based on the results
achieved.
【正确答案】
D
【答案解析】[解析]
Here's how the Global Fund works. Donor nations contribute funds to a common reserve, which today totals about $6.3 billion. Nations who apply for funds submit very specific proposals. The proposals, says AIDSPAN's Bernard Rivers, are judged according to their merit and the results promised, never on political considerations. What's more, Rivers says, the decision to renew funding is based entirely on results achieved.
[难点] 此题难度相对较低，根据几个细节部分信息“Donor nations”、“never on political considerations”等可以排除a、b、c三个选项。d选项是文段最后一句话的重述，所以选d。