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phrases are called “frequentative words”(重復(fù)型成對詞). The two same words can be linked by the conjunction “and” or prepositions such as “in”, “by” and so on.More examples: again and again 反復(fù)地。Unit 8 Book 3Competition and CooperationI. Difficult Sentences 1. “Dogeatdog” rivalries are fueled by “greedy selfinterests”operating according to “the law of the jungle” in which “survival of the fittest” is the only rule.(1) What do the phrases “the law of the jungle” and “survival of the fittest” mean? (=a. “The law of the jungle” means everyone cares for himself only. b. “Survival of the fittest” means only the strongest creatures will stay alive. (2) Translate the sentence into Chinese. (=“貪婪的私利”遵循“叢林法則”中“適者生存”這唯一的一條定律,使“互相傾軋”的競爭變本加厲。)2. But those who deplore freemarket petition simply do not understand it.What is the author’s attitude toward the people who are strongly against freemarket petition? (=In the author’s opinion, they don’t really know what petition means.)3. Competitive markets excel at promoting cooperation.Paraphrase the sentence.(=Competitive markets do quite well in encouraging people to cooperate.) 4. Competition and cooperation exist side by side. (1) Translate the sentence. (=競爭與合作并存。 屢次地。)6. We call such bidding petition, but note that such petition differs fundamentally from another kind of “petition”… (1) What does the first “such” refer to here? (= It refers to what had mentioned in the previous sentence.)(2) Compare the two “such” in the sentence. (=These two words have different parts of speech. The first one is a pronoun while the second one is an adjective.)7. If the owners of General Motors spread nails on the roads leading to Ford factories and dealerships, this is a form of noneconomic petition—and a most undesirable form. What is the author’s purpose of citing the example of “spreading nails”? (=He just wants to support his argument – sometimes petition is not good.) 8. But notice that identically undesirable consequences occur when General Motors and Ford cooperate with each other to lobby successfully for import restrictions on foreign automobiles. Why doesn’t the author think much of the “import restriction on foreign automobiles” ?(=Because in his opinion tariffs hurt consumers too.)9. Instead, such legislation is typically revered as desirable social policy. What can we infer from this sentence?(=From this sentence, we can infer that the author doesn’t think much of this kind of legislation.) 10. Today, the descendants of the owners of momandpops are surely better off than they would have been had supermarkets never e along. (1) What can we infer from the sentence?(=By citing this example, the author just wants to tell us sometimes the petition is not a bad thing.)(2) What does the author want to tell us when he uses the subjunctive mood here?(=The author just wants to tell us that supermarkets do exit now.) (3) Translate the sentence into Chinese.(=今天,夫妻店老板的子孫過的生活,肯定比超級市場未出現(xiàn)時(shí)富裕得多。(That is a cutthroat business.)2. rivalry: vt. to make sth., especially sth. bad, increas