11、But several questions remain unanswered: how frequently meat eating occurred;
what the social implications of meat eating were;
and whether the increased use of meat coincides with the beginnings of the use of home bases. 托福阅读题目： 1. The passage mainly discusses which of the following aspects of homi 。

12、nid behavior? (A) Changes in eating and dietary practices (B) The creation of stone hunting tools (C) Social interactions at home bases (D) Methods of extracting nutritious food from carcasses 2.According to the passage , bringing a meal to a location to be shared by many individuals is (A) an activ 。

13、ity typical of nonhuman primates (B) a common practice among animals that eat meat (C) an indication of social unity (D) a behavior that encourages better dietary habits 3. The word consumed in line 4 is closest in meaning to (A) prepared (B) stored (C) distributed (D) eaten 4.According to paragraph 。

14、 2, researchers make copies of old stone tools in order to (A) protect the old tools from being worn out (B) display examples of the old tools in museums (C) test theories about how old tools were used (D) learn how to improve the design of modern tools 5. In paragraph 2, the author mentions all of。

15、the following as examples of ways in which early stone tools were used EXCEPT to (A) build home bases (B) obtain food (C) make weapons (D) shape wood 6. The word innovative in line 13 is closest in meaning to (A) good (B) new (C) simple (D) costly 7. The word them in line 15 refers to (A) issues (B) 。

16、 researchers (C) tools (D) specimens 8. The author mentions characteristic chippage patterns in line 16 as an example of (A) decorations cut into wooden objects (B) differences among tools made of various substances (C) impressions left on prehistoric animal bones (D) indications of wear on stone to 。

17、ols 9. The word extract in line 19 is closest in meaning to (A) identify (B) remove (C) destroy (D) compare 10. The word whether in line 26 is closest in meaning to (A) if (B) how (C) why (D) when 托福阅读答案： ACDCABCDBA 托福阅读真题练习：沥青 托福阅读文本： Prehistoric mammoths have been preserved in the famous tar pits。

18、of Rancho La Brea (Brea is the Spanish word for tar) in what is now the heart of Los Angeles, California. These tar pits have been known for centuries and were formerly mined for their natural asphalt, a black or brown petroleum-like substance. Thousands of tons were extracted before 1875, when it w 。

19、as first noticed that the tar contained fossil remains. Major excavations were undertaken that established the significance of this remarkable site. The tar pits were found to contain the remains of scores of species of animals from the last 30,000 years of the Ice Age. Since then, over 100 tons of。

20、fossils, 1.5 million from vertebrates, 2.5 million from invertebrates, have been recovered, often in densely concentrated and tangled masses. The creatures found range from insects and birds to giant ground sloths, but a total of 17 proboscides (animals with a proboscis or long nose) including masto 。

【托福|托福阅读时间规定】21、dons and Columbian mammoths have been recovered, most of them from Pit 9, the deepest bone-bearing deposit, which was excavated in 1914. Most of the fossils date to between 40,000 and 10,000 years ago. The asphalt at La Brea seeps to the surface, especially in the summer, and forms shallow puddles t 。

22、hat would often have been concealed by leaves and dust. Unwary animals would become trapped on these thin sheets of liquid asphalt, which are extremely sticky in warm weather. Stuck, the unfortunate beasts would die of exhaustion and hunger or fall prey to predators that often also became stuck. As。

23、the animals decayed, more scavengers would be attracted and caught in their turn. Carnivores greatly outnumber herbivores in the collection: for every large herbivore, there is one saber-tooth cat, a coyote, and four wolves. The fact that some bones are heavily weathered shows that some bodies remai 。

24、ned above the surface for weeks or months. Bacteria in the asphalt would have consumed some of the tissues other than bones, and the asphalt itself would dissolve what was left, at the same time impregnating and beautifully preserving the saturated bones, rendering them dark brown and shiny. 托福阅读题目： 。

25、 1. What aspect of the La Brea tar pits does the passage mainly discuss? (A) The amount of asphalt that was mined there (B) The chemical and biological interactions between asphalt and animals (C) The fossil remains that have been found there (D) Scientific methods of determining the age of tar pits 。

26、 2. In using the phrase the heart of Los Angeles in line 2, the author is talking about the citys (A) beautiful design (B) central area (C) basic needs (D) supplies of natural asphalt 3. The word noticed in line 5 closest in meaning to (A) predicted (B) announced (C) corrected (D) observed 4. The wo 。

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