Read the article and select the best answer. Article: Australian scientists are trying to give kangaroo-style stomachs to cattle and sheep in order to cut the greenhouse gases they send out, which is thought to be responsible for global warming. Thanks to special bacteria in their stomachs, kangaroo flatulence contains nomethane and scientists want to transfer that bacteria to cattle and sheep who produce large quantities of the harmful gas. While the usual image of greenhouse gas pollution is a billowing smokestack pushing out carbon dioxide, farm animals' passing wind contributes a surprisingly high percentage of total emissions in some countries. "Fourteen percent of emissions from all sources in Australia is from enteric methane from cattle and sheep," said Athol Klieve, a senior research scientist with the Queensland state government. "And if you look at another country such as New Zealand, which has got a much higher agricultural base, they're actually up around 50 percent," he said. Researchers say the bacteria also make the digestive process much more efficient and could potentially save millions of dollars in feed costs for farmers. But it will take researchers at least three years to isolate the bacteria, before they can even start to develop a way of transferring it to cattle and sheep. Another group of scientists, meanwhile, has suggested Australians should farm fewer cattle and sheep and just eat more kangaroos. And about 20 percent of health-conscious Australians have eaten the national symbol already. "It's low in fat, it's got high protein levels and it's very clean in the sense that basically it's the free-range animal," said Peter Ampt of the University of New South Wales's institute of environmental studies. Question: Scientists intend to put the bacteria into cattle and sheep _ . Options: A: to prevent them from sending out greenhouse gases B: to help Australian farmers to earn more money C: so that they can protect Australian ecosystem D: so that they can make full use of special bacteria
A

Read the article and select the best answer. Article: Dear David, I'm glad you would like to share your feelings with me.It's hardly surprising that your feelings of not being "grown up" have come on strongly at this point in your life,just before you're about to become a father.You are asking:will I make a good father?How will I cope? Should I have brought another little person into the world? Can l provide for it? Help! I think nearly every sensitive about-to-be-parent must have these occasional feelings of self-doubt and inadequacy before the birth and it would be most unusual if you didn't share them.It's difficult,honestly,to feel grown-up unless you have something less grown-up to relate to. The boss with a hen-pecking wife may feel like a seven-year-old when he's at home.But as he walks through the office door,and knows he's going to be surrounded by staff looking to him for Advice,he grows into a fully mature man.And I think it's a mistake to imagine that we all feel,as we age,a kind of progression of states,from the baby to the adult.Most people feel,on Tuesday,about three years old,and on a Wednesday,around 80. There's a common remark that "all men are little boys",but it's not true.It's more true that men often behave like little boys.But nearly all people,at some moments in their lives,are capable of groat maturity. Once your baby arrives,you'll soon feel less childlike,or rather,less often.When your child tries to put its fingers into the electric plug,the adult in you will rise up to prevent it.You'll see you have very little in common with a needy child,particularly if it's looking to you for comfort and support. Comfort yourself,David,with two truths.One is that your friends laugh when they talk about this subject because they,like you,feel frightened.And remember that people who haven't grown up don't go around talking about the fact that they don't feel grown-up. Hope my advice will be helpful and good luck to you and your little one. Yours sincerely Miss Advice Question: According to the passage,Miss Advice thinks David's self-doubt is _ . Options: A: valuable B: natural C: unusual D: bearable
B

(Question)
Read the article and select the best answer. Article: Women in Nazi Germany were to have a very special job. Hitler was very clear about this. This job was that they should be good mothers bringing up children at home while their husbands worked. Except for some special fields, Hitler saw no reason why a woman should work. Within months of Hitler coming to power, many female doctors, teachers and lawyers were . By the start of the Second World War, very few German women were in fulltime work. From their earliest years, girls were taught that all good German women married at a young age to a proper German and that the wife's job was to keep a good home for her working husband and to have children. One of the earliest laws passed by Hitler once he came to power in 1933, was the Law for the Encouragement of Marriage. This law stated that all newly married couples would get a government loan of 1000 marks. This loan was not to be simply paid back. The birth of one child meant that 25% of the loan did not have to be paid back. Two children meant that 50% of the loan didn't need to be paid back. Four children meant that the entire loan was cleared. What was more, as housewives and mothers, their lives were controlled. Women were not expected to wear make-up or trousers. Only flat shoes were expected to be worn. Women were discouraged from slimming as this was considered bad for child birth. Question: According to the passage, women in Nazi Germany _ . Options: A: could make up or wear beautiful clothes B: were to have children and do housework C: could receive a good education at school D: were offered the equal rights as men
(Answer)
B