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Reading comprehension -TOEFL- Lesson 91 (Đọc hiểu -TOEFL- Bài 91)

Đọc đoạn văn sau và trả lời các câu hỏi:

The availability of food and probably, to a lesser extent, the degree of danger from predators are tow basic influences in the relations between individuals within a species; and here the rules that operate for primates also hold for all other species. The higher primates 5 are special because, by their nature, they have a propensity to be social rather than solitary. Differences in environmental conditions therefore tend to determine the way in which they are social rather than whether they are social. The reason the higher primates tend to be social animals is that group living offers the opportunity 10 for prolonged learning during childhood; and learning is a pastime in which primates engage far more than any other animal. Learning is a pastime with a purpose, however, namely to equip individuals in a group with a amore effective knowledge of the environment in which they must survive. Greater knowledge implies a greater chance 15 of survival-which is what evolution is all about.

A period of childhood education implies dependency on an adult, and this turns out to mean that, without exception, the basis of all primate social group is the bond between mother and infant. That 20 bond constitutes the social unit out of which all higher orders of society are constructed.

1. What is the main subject of the passage?




2. The phrase beginning with "namely" near the end of the first paragraph is used to




3. According to the passage, the primary goal of learning among the higher primates is




4. The author implies that the most fundamental social unit in human society is the





Grammar Easy Grammar Medium Grammar - Difficult
1->25 26->49 50->75 76->99 100->125 126->164
Ôn Tập Ngữ Pháp Phần 1 Ôn Tập Ngữ Pháp Phần 2