单选题He ______ a large fortune from his business.

单选题Once______of the necessity of a move, he worked hard to find a new home.

单选题Riding on the swings (秋千) and playing with the ducks in the pond was our children's greatest pleasure when we took them to the park. A. playing B. was C. children's D. them

单选题Can you ______ the difference ______ the two phrases?

单选题Wood does not conduct electricity, ______.

单选题As they haven't a child of their own, they're going to______a little girl.

单选题Lesson Three is the most difficult lesson, but it isn’t the most difficult lesson in Book Four. 　　　　　　　　　　　A　　　　　　　　　B　　　　C

单选题________ the weather improves, we will suffer a huge loss in the tourist industry.

单选题(At) weekends I enjoyed (to stay) alone, (reading works) by famous writers (such as) Mark Twain and Charles Dickens.

单选题Speaker A: Can I do anything for you?Speaker B:________

单选题One hundred online courses make a Harvard education ______ worldwide.

单选题Increasingly, over the past ten years, people—especially young people—have become aware of the need to change their eating habits, because much of the food they eat, particularly processed food, is not good for the health. Consequently, there has been a growing interest in natural foods. Foods which do not contain chemical additives (添加剂) and which have not been affected by chemical fertilizers, widely used in farming today. Natural foods, for example, are vegetables, fruit and grain which have been grown in soil that is rich in organic (有机的) matter. In simple terms, this means that the soil has been nourished by unused vegetable matter, which provides it with essential vitamins and minerals. This in itself is a natural process compared with the use of chemicals and fertilizers, the main purpose of which is to increase the amount—but not the quality—of foods grown in commercial farming areas. Natural foods also include animals which have been allowed to feed and move freely in healthy pastures (牧场). Compare this with what happens in the mass production of poultry: there are farms, for example, where thousands of chickens live crowded together in one building and are fed on food which is little better than rubbish. Chickens kept in this way are not only tasteless as food, they also lay eggs which lack important vitamins. There are other aspects of healthy eating which are now receiving increasing attention from experts on diet. Take, for example, the question of sugar. This is actually a non-essential food! Although a natural alternative, such as honey, can be used to sweeten food if it is necessary, we can in fact do without it. It is not that sugar is harmful in itself. But it does seem to be addictive: the quantity we use has grown steadily over the last two centuries and in Britain today each person consumes an average of 200 pounds a year! Yet all it does is to provide us with energy, in the form of calories. There are no vitamins in it, no minerals and no fiber. It is significant that nowadays fiber is considered to be an important part of a healthy diet. In white bread, for example, the fiber has been removed. But it is present in unrefined flour and of course in vegetables. It is interesting to note that in countries where the national diet contains large quantities of unrefined flour and vegetables, certain diseases are comparatively rare. Hence the emphasis is placed on the eating of whole meal bread and more vegetables by modern experts on "healthy eating".

单选题Can you imagine how you would feel if you fell dangerously ill and could not reach or call a doctor? Millions of people (1) the world are in this unfortunate (2) , living in distant places (3) there are no railways, no proper roads and no telephones. Thousands of (4) are lost every year (5) could have been saved if medical attention (6) in time. (7) today help could be brought quickly and easily (8) many of these people (9) full advantage was taken (10) the aeroplane. (11) country has proved this (12) than Australia. The Australians (13) greater use of the aeroplane than any (14) people in the world. In no other country (15) the total number of miles flown by the (16) person so high. In fact, it has been (17) that Australians jump into planes (18) people in other countries jump into trains and buses. It is not surprising, (19) that Australia should have been the first country (20) a Flying Doctor Service.

单选题Age is not important. It's brains and knowledge that______.

单选题After working for the firm for ten years, he finally ______ the rank of deputy director.

单选题It is day when our side of the earth is turned ______ the sun. A. toward B. into C. off D. beyond

单选题It was not much fun to travel on one of the old sailing ships. Life was hard for both passengers and crew. 17th century sailing ships were small and rolled heavily in rough seas, so most of the passengers were seasick. There were no toilets, and the spaces below deck where passengers had to stay during gales were often not more than 5 foot high. Water was scarce and the little water they got was brown and smelt terrible. Food was a problem, too—there was only salted meat, ship"s biscuits and cheese, but the cheese was so hard that sailors often made buttons out of it for their jackets and trousers. There were no vegetables or fruit, so the people on board often fell ill. The sailors, however, were a bit better off than the passengers. They each had a bottle of beer a day, and they needed. The work they had to do was hard and dangerous. Courage was needed, for the heavy sails had to be set and taken down in all kinds of weather, and quite often sailors were swept overboard in a gale. Almost the worst thing about the voyages was the time they took up to 70 days for the journey across the Atlantic. Not surprisingly, everybody was overjoyed when they at last approached land and stepped ashore. But some ships never arrived.