Write a multi-choice question for the following article, with the given choices and answer: Article: Around the world coral reefs are facing threats brought by climate change and great changes in sea temperatures. While ocean warming has been the primary focus for scientists and ocean policy managers, cold events can also whiten corals. A new study by scientists compared damaged to corals exposed to heat as well as cold stress. The results show that cool temperatures can cause more damage in the short term, but heat is more destructive in the long run. Climate change is widely known to produce warming conditions in the oceans, but extreme cold-water events have become more frequent and serious as well. In 2010, for example, coral reefs around the world faced on of the coldest winters and one of the hottest summers on record. During a unique experiment, corals under cold temperatures suffered greater damage in just days compared with heat treated corals. Yet the researchers found that corals were eventually able to adjust to the cold conditions, make their health stable and continue to grow. However, over the long term corals subjected to heat suffered more greatly than those in cold, with evidence of severe whitening and growth stoppage, which leads to death. The coral's ability to adjust to cool temperatures surprised the researchers, who say the study's results show the complexities of monitoring coral health in response to different environmental factors . "Global warming is associated with increases but also decreases of temperatures," said Deheyn, one of the researchers. "Not much has been known about the comparative effects of temperature decrease on corals. These results are important because they show that corals react differently to temperature differences, which is important for future management of coral reefs in the field of climate change." Options: A news report B scientific study C great imagination D natural conditions Answer: B scientific study Question:
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Answer: Scientists reached the conclusion through _ .

Write a multi-choice question for the following article, with the given choices and answer: Article: Can you imagine that you can save your own life during a heart attack by coughing ? Let's see how... A heart attack can happen to anyone. Let's say it's 4:17 p.m. and you're driving home (alone of course) after an unusually hard day on the job. Not only was the workload extremely heavy, you also had a disagreement with your boss, and no matter how hard you tried, he just wouldn't see your side of the situation. You're really upset and the more you think about it, the more nervous you become. All of a sudden you start experiencing severe pain in your chest that starts to spread out into your arm and up into your . You are only about five miles from the hospital nearest your home, unfortunately you don't know if you'll be able to make it that far. What can you do? You've been trained in CPR but the guy who taught the course didn't tell you how to perform it on yourself. Since many people are alone when they suffer a heart attack, this article seems in order. Without help the person whose heart stops beating properly and who begins to feel has only about 10 seconds left before losing consciousness. However, these victims can help themselves by coughing repeatedly and very powerfully. A deep breath should be taken before each cough, and the cough must be deep and last long, as when producing from deep inside the chest. A breath and a cough must be repeated about every two seconds without stopping until help arrives, or until the heart is felt to be beating normally again. Deep breaths get oxygen into the and coughing movements squeeze the heart and keep the blood circulating. The squeezing pressure on the heart also helps it regain normal rhythm . In this way, heart attack victims can get to a phone and, between breaths, call for help. Now, do you understand the whole matter? Tell as many other people as possible about this. It could save their lives! Options: A regain someone's breath and heart beat B help someone treat a heart attack by himself C teach people how to stay in good state D train people how to stay calm when facing dangers Answer: A regain someone's breath and heart beat Question:
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Answer: According to the passage, CPR is most probably something done to _ .

Write a multi-choice question for the following article, with the given choices and answer: Article: What do you think of British people and American people? You might think that there are no differences between the people in the two countries. After all they speak the same language, don't they? But if you ask a British or an American person, the differences are quite great. What do British people think Americans are like? The British think Americans are very strange. They make a lot of noise and they laugh too loudly. They are rich, and they only think about money. But the British do say that Americans are kind, friendly people. They are happy to help you if you are in trouble. What do Americans think of the British? Well, they think the British are cold and very unfriendly. They are not interested in success or in making lots of money. They think Britain is the best country in the world. They look down upon other countries. But Americans say that the British are quite good workers. They are brave and honest. And in time of trouble they face difficulties happily. You can see that these ideas can cause misunderstanding between the British and Americans. But when American and British people become friends, they usually find things are not as bad as they expected. ,: Options: A when misunderstanding is caused between them B once they become friends C after they fight D when they help each other Answer: B once they become friends Question:
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Answer:
The American and British people usually get along quite well _ .