[填空题]I feel it a great honor______(被邀请在这里发言)about natural selection.

[填空题]I feel it a great honor______(被邀请在这里发言)about natural selection.

[填空题]Martin
The great thing about capital punishment is that fear of death deters people from committing crimes. Besides, it ensures that those who are really dangerous will neither repeat their crimes nor pass on undesirable hereditary traits to their children. In this way it protects society from many dangerous happenings.
Lynn
But any fear of the death penalty is greatly reduced by the decrease in the number of jurisdictions using it, by the uncertainty of detection, the long delays in court procedures, the decline in the number of executions, and by the nonpublic nature of executions. Statistical studies indicate that the use of the death penalty has no significant effect on either the frequency of capital crimes or the safety of law-enforcement officers.
Kent
By attaching this penalty to certain crimes, the law exerts a positive moral influence in the educational process. By strongly stigmatizing these acts, the law helps to develop attitudes of disgust and even horror

[填空题]Although we already know a great deal about influenza, it is difficult for epidemiologists (流行病学家), who study infectious disease, to (36) when and where the next flu epidemic will occur, and how (37) it will be. There are three kinds of influenza virus, known as A, B and C. Influenza C virus is relatively stable and causes mild (38) that do not spread far through the population. The A and B types are (39) , and are responsible for the epidemics that cause frequent concern. Following any virus attack, the human body builds up antibodies which confer (给予) immunity to that strain of virus, but a virus with the capacity to change its character is able to bypass this (40) . Variability is less developed in the influenza B virus, which affects only human beings. An influenza B virus may cause a widespread but will have little effect if (41) into the same community soon afterwards, since nearly everyone will have built up

[填空题]People who make great fuss about health become cowards and dare not eat or drink many things.

[单项选择]Scientists have learned a great deal about the kinds of food people need. They say that there are several kinds of food that people should eat every day. What are these classes of food They are 1) green vegetables of all kinds, such as string beans, peas, lettuces, and cabbages; 2) fruit, such as apples, peaches and bananas; 3) other vegetables, examples of these are beets, onions, carrots, tomatoes and so on; 4) meat of all kinds, fish and eggs; 5) milk and food made from milk, such as butter, cheese and ice-cream; 6) bread or cereal. Rice is also in this class of food.
People in different countries and different areas of the world eat different kinds of things. Scientists say that none of these differences are really important. It doesn’t matter whether food is eaten raw or cooked, canned, or frozen. It doesn’t matter if a person eats dinner at four o’clock in the afternoon or at eleven o’clock at night. The important thing, they say, is that every day a person should eat someth
A. Lettuces.
B. Peas.
C. Cabbages.
D. Spinach.