¡¡¡¡15. The author mentions all of the following as effects of mass transportation on cities EXCEPT
¡¡¡¡£¨A£© growth in city area
¡¡¡¡£¨B£© separation of commercial and residential districts.
¡¡¡¡£¨C£© Changes in life in the inner city.
¡¡¡¡£¨D£© Increasing standards of living.
¡¡¡¡16. The word "vast" in line 5 is closest in meaning to
¡¡¡¡£¨A£© large
¡¡¡¡£¨B£© basic
¡¡¡¡£¨C£© new
¡¡¡¡£¨D£© urban
¡¡¡¡17. The word "sparked" in line 15 is closest in meaning to
¡¡¡¡£¨A£© brought about
¡¡¡¡£¨B£© surrounded
¡¡¡¡£¨C£© sent out
¡¡¡¡£¨D£© followed
¡¡¡¡18. Why does the author mention both Boston and Chicago£¿
¡¡¡¡£¨A£© To demonstrate positive and negative effects of growth.
¡¡¡¡£¨B£© To show that mass transit changed many cities.
¡¡¡¡£¨C£© To exemplify cities with and without mass transportation.
¡¡¡¡£¨D£© To contrast their rates of growth
¡¡¡¡19. The word "potential" in line 23 is closest in meaning to
¡¡¡¡£¨A£© certain
¡¡¡¡£¨B£© popular
¡¡¡¡£¨C£© improved
¡¡¡¡£¨D£© possible
¡¡¡¡20. The word "many" in line 25 refers to
¡¡¡¡£¨A£© people
¡¡¡¡£¨B£© lots
¡¡¡¡£¨C£© years
¡¡¡¡£¨D£© developers
¡¡¡¡21. According to the passage£¬ what was one disadvantage of residential expansion£¿
¡¡¡¡£¨A£© It was expensive.
¡¡¡¡£¨B£© It happened too slowly.
¡¡¡¡£¨C£© It was unplanned.
¡¡¡¡£¨D£© It created a demand for public transportation.
¡¡¡¡22. The author mentions Chicago in the second paragraph as an example of a city
¡¡¡¡£¨A£© that is large
¡¡¡¡£¨B£© that is used as a model for land development
¡¡¡¡£¨C£© where land development exceeded population growth
¡¡¡¡£¨D£© with an excellent mass transportation system.
¡¡¡¡Question 23-33
¡¡¡¡The preservation of embryos and juveniles is rare occurrence in the fossil record. The tiny£¬ delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be fossilized. Ichthyosaurs had a higher chance of being preserved than did terrestrial creatures because£¬ as marine animals£¬ they tended to live in environments less subject to erosion. Still£¬ their fossilization required a suite of factors£º a slow rate of decay of soft tissues£¬ little scavenging by other animals£¬ a lack if swift currents and waves to jumble and carry away small bones£¬ and fairly rapid burial. Given these factors£¬some areas have become a treasury of well-preserved ichthyosaur fossils.
