题目内容
A．They have already existed.B．They will come into being in the future.C．They are only
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Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听力原文： An advertisement says "Learn English in six weeks, or your money back". Of course, it never happens quite like that. As we know, no language is easy to learn except one's mother -tongue. And think how much practice that gets. Before the Second World War, people usually learn English in order to read English literature. Now most people want to speak English. Every year many millions of people start to learn English. How do they do it？
Some people try at home, with books and tapes, some use radio or television programmes, others go to school or attend evening classes. If they use English only two or three times a week, it will take a long time to learn it, like English learning at school. A few people try to learn English fast and study six or more hours a day. It is clearly easier to learn English in Canada, Australia or the United States. However, most people cannot afford this, and for many it is not necessary. They need English in order to do their work better. For example, most scientists and engineers chiefly need to be able to read books and reports in English. Whether English is learnt quickly or slowly, it is hard work. Good teachers, books and machines will help, but they cannot do the students' work for him.
(27)
In a diagnostic situation ______exist side by side throughout the community.
Why is this significant？【C8】______-health experts estimate that Americans consume, on average, about 3,500 mg of sodium【C9】______about 9 grams of salt daily. It's not【C10】______we're that heavy-handed with the saltshaker. Most of our dietary sodium is added【C11】______food processing.【C12】______to 1,200rog, you'd have to forgo most【C13】______foods, take-out deliveries and restaurant meals.
So pay attention【C14】______how much salt you're eating, but don't forget to make fruits, vegetables and whole grains a【C15】______part of your diet. They'll help 41 your cholesterol level
【C17】______your blood pressure. Be sate to drink alcohol【C18】______, if at all.【C19】______weight even just 4.5kg and exercising at least 30 minutes most days of the week can also have a marked【C20】______on blood pressure.
【C1】
A．To speak English.B．To read technical books in English.C．To listen to English program
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