Passage 2
|
Obviously television has both advantages and disadvantages. In the first place, television is not only a convenient source of entertainment, but also a comparatively cheap one.With a TV set in the family people don’t have to pay for expensive seats at the theatre, the cinema, or the opera. All they have to do is to push a button or turn a knob, and they can see plays, films, operas and shows of every kind. Some people, however, think that this is where the danger lies. The television viewers need do nothing. He does not even have to use his legs if he has a remote control. He makes no choice and exercises, no judgment. He is completely passive and has everything presented to him without any effort on his part. Television, it is often said, keeps one informed about current events and the latest developments in A. not very convenient B. very expensive C. quite dangerous D. relatively cheap [单项选择]The fridge’s effect upon the environment has been evident. while its contribution to human happiness has been insignificant.（）
A. 冰箱在促进人类幸福的同时，也对环保有较明显的影响。 B. 冰箱对环保的影响显而易见，对人类幸福的贡献却少之又少。 C. 冰箱对环境的影响显而易见，对人类幸福的贡献却微不足道。 D. 冰箱对环境的影响显而易见，对人类幸福也有重大贡献。 [单项选择]Many students do not like to study history. They say that there are (41) many names and dates to 42 But if we do not know about the (43) , we can not understand the present well. For example, if we wish to know how men (44) to use fire, we have to know what men did (45) the past to travel at night or to keep themselves (46) in cold nights. Only a study of history will make us realize(意识到) (47) everything we do today is the result of what (48) people did in the past.
As we (49) history, we learn many interesting (50) .History helps us understand our present life better. A. too B. enough C. nearly [填空题]Rangachari’s study caught the attention of Indian government.
[单项选择]What was the main harmful effect of the pest’’s killer DDT on bald eagles
A. It limited their supply of food. B. It destroyed many of their nests killed C. It many baby bald eagles. D. It made their eggshells too fragile. [简答题]
Experimental effect is an interesting phenomenon that occurs when researchers perform experiments. The accuracy of the experimental outcome turns out just as hypothesized or expected -- not because of the knowledge or the methods of the researchers, but because their expectations tend to affect the processes and results of the experiment. For example, a researcher who predicts that the outcome of the experiment will not be the expected one may take actions that make the unexpected result more likely, thus fulfilling the original hypothesis. Question: The professor gives an example to illustrate the "experimental effect" phenomenon. Explain how this example is related to the reading passage. 我来回答: 提交
|
