Problem: OPTIONS:
- When she was 84 years old
- After she entered "Mission 523".
- In 1967
- When malaria become serious among ordinary Chinese people.
Q: Read the following article and answer the question. Article: Tu Youyou, 84, honored with the Nobel Prize in Physiology or Medicine on Oct 5, 2015. She was the first Chinese citizen to win a Nobel Prize in science for her work in helping to create an anti-malaria medicine. In 1967, Communist leader Mao Zedong decided there was an urgent national need to find a cure for malaria. At the time, malaria spread by mosquitoes was killing Chinese soldiers fighting Americans in the jungles of northern Vietnam. A secret research unit was formed to find a cure for the illness. Two years later, Tu Youyou was instructed to become the new head of Mission 523. Researchers in Mission523 _ ancient books to find historical methods of fighting malaria. When she started her search for an anti-malarial drug, over 240,000 compounds around the world had already been tested, without any success. Finally, the team found a brief reference to one substance, sweet wormwood , which had been used to treat malaria in China around 400 AD. The team isolated one active compound in wormwood, artemisinin , which appeared to battle malaria-friendly parasites . The team then tested extracts of the compound but nothing was effective until Tu Youyou returned to the original ancient text. After another careful reading, she improved the drug recipe one final time, heating the extract without allowing it to reach boiling point. After the drug showed promising results in mice and monkeys, Tu volunteered to be the first human recipient of the new drug. "As the head of the research group, I had the responsibility." she explained. Question: When did Ms. Tu start her malaria research? Answer:
Answer: After she entered "Mission 523".
Problem: OPTIONS:
- You can learn a lot from the study of a language.
- Guess words' meanings according to context.
- Reading for pleasure is important.
- Reading skills for books like novels, plays and so on
Q: Read the following article and answer the question. Article: If you want to get the most out of the study of a language, you must also read for pleasure: novels, plays, travel books, and so on. And in reading books of this kind the important thing is _ ; to try to grasp what the writer is going to tell you in the book as a whole. This is impossible if you stop and think over the meaning of every single word which happens to be unfamiliar. You can not enjoy a story if you stop half a dozen times on every page in order to look up words in the dictionary. You may even prevent yourself from understanding the story as a whole by doing this. When you are reading books of this kind, therefore, you will usually have to depend mainly on the context to help you. If you meet an unfamiliar word, do not let it take too much of your attention from the main idea of the story. In all probability you will meet the same word again a few pages later on in a slightly different context, and each time you see it that your understanding of it will become more exact. Question: .What is the passage's main idea? Answer:
Answer: Reading skills for books like novels, plays and so on
Problem: OPTIONS:
- the discovery of the largest ozone hole
- the discovery of the Antarctica ozone hole
- the history of the Antarctica ozone hole
- the size of the largest ozone hole
Q: Read the following article and answer the question. Article: Washington -- The largest ozone hole ever observed has opened up over Antarctica, according to the scientists of the US National Aeronautics and Space Administration (NASA). They believe it is a sign that ozone -- destroying gases produced years ago are just now causing the largest quantities of ozone to disappear. This year's South Pole ozone hole spreads over about 28.5 million square kilometers, an area three times larger than the landmass of the prefix = st1 /United States. Pictures of the hole have been offered by NASA. The hole appears as a giant blue mass, totally covering Antarctica and stretching to the southern tip of South America. "The last time the ozone hole was close to this size was in 1998, when it spread over about 27.2 million square kilometers," NASA said. Paul Newman, who works with NASA's Total Ozone Mapping Spectrometer (TOMS) instrument on a NASA satellite, said ozone watchers had expected a big hole this year, but not this big. The Antarctica ozone hole, first observed in 1985, is caused by the depletion of Earth protecting ozone by human-made chemicals such as chlorofluorocarbons, known as CFCs. "Even though these chemicals were not allowed to use from the beginning of 1987, they remain in the atmosphere and will continue to do so for years," Newman said. "This year's large hole may have been caused by a change in a swirling high-level air current over Antarctica, which circles the area and contains the zone hole," Newman said. Question: The text is mainly about _ . Answer:
Answer:
the discovery of the largest ozone hole