5.The main idea of this passage is that satellites are now used in __________.

 A. taking pictures of the earth B. receiving pictures of the atmosphere

 C. weather forecasting D. doing other work in many ways

 Passage 27

 Paragraph 1

 Scientists have learned a lot about the kinds of people need. They say that there are several kinds of food that people should eat every day, they are: (1) green and yellow vegetables of all kinds; (2) citrus (柑桔) fruits and tomatoes; (3) potatoes and other fruits and vegetables; 94) meat of all kinds, fish and eggs; (5) milk and foods made from milk; (6) bread or cereal (谷类), rice is also in this kind of food; (7) butter, or something like butter.

 Paragraph 2

 People in different countries and different places of the world eat different kinds of things. Foods are cooked and eaten in many different kinds of ways. People in different countries eat at different times of the day. In some places people eat once or twice a day; in other countries people eat three or four times a day. Scientists say that none of the differences is really important. It doesn’t matter whether foods are eaten raw or cooked, canned (罐装的) or frozen (冷冻的). It doesn’t matter if a person eats dinner at 4 o’clock in the afternoon or at eleven o’clock at night. The important thing is what you eat every day.

 Paragraph 3

 There are two problems, then, in feeding the large number of people on the earth. The first is to find some way to feed the world’s population so that no one is hungry. The second is to make sure that people everywhere have the right kinds of food to make them grow to be strong and healthy.

 0  239591  239599  239605  239609  239615  239617  239621  239627  239629  239635  239641  239645  239647  239651  239657  239659  239665  239669  239671  239675  239677  239681  239683  239685  239686  239687  239689  239690  239691  239693  239695  239699  239701  239705  239707  239711  239717  239719  239725  239729  239731  239735  239741  239747  239749  239755  239759  239761  239767  239771  239777  239785  447348 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网