19. Free play has been introduced in some Japanese kindergartens in order to ________.

　　A) broaden children’s horizon

　　B) cultivate children’s creativity

　　C) lighten children’s study load

　　D) enrich children’s knowledge(C)

　　20. Why do some Japanese parents send their children to university-based kindergartens?

　　A) They can do better in their future studies.

　　B) They can accumulate more group experience there.

　　C) They can be individually oriented when they grow up.

　　D) They can have better chances of getting a first-rate education.(D)

　　這是一篇講述日本學前教育的材料，因為文章是講給美國人看的，所以附帶介紹美國的學前教育以和日本進行對比。材料一共只有三大段，第一大段指出日本學前教育的側重點，第二段進一步說明日本學前教育側重點中對集體主義的重視，第三段則說明日本學前教育除集體主義外的豐富內容。

　　第一段開頭實際上提出了研究日本學前教育的原因：low academic achievement by children in the United States，大意是美國的兒童教育成效不明顯，這迫使人們把目光投向了教育和經濟水平都很高的日本，以期得到答案(for possible answers)。這一探詢的結果是出乎美國人意料的，日本學前教育很少強調功課指導(little emphasis is put on academic instruction)，這也是本文的主要觀點。文章接下來以問卷調查為論據對這一觀點進行了論證。

　　問卷調查的結果是日本人更重視堅韌、專注和集體主義等素質的培養(but rather skills such as persistence, concentration, and the ability to function as a member of a group)，第二段繼續對集體主義這一項素質做了進一步說明(可見其重要性)：91%的日本人將其列為學前教育的三大目標之一(91 percent of Japanese respondents chose providing children with a group experience)，這項教育甚至會延續到小學教育(continues into elementary school education)。

　　最后一段討論了除去上述素質教育外，日本學前教育的其他內容和特色。其中包括早期音樂訓練和潛力發掘(early musical training or potential development)，附屬于大學(這一項屬于特色)，以及自由玩耍(have introduced free play)。

　　Passage Three

　　Questions 21 to 25 are based on the following passage.

　　Lead deposits, which accumulated in soil and snow during the 1960’s and 70’s, were primarily the result of leaded gasoline emissions originating in the United States. In the twenty years that the Clean Air Act has mandated unleaded gas use in the United States, the lead accumulation worldwide has decreased significantly.

　　A study published recently in the journal Nature shows that air-borne leaded gas emissions from the United States were the leading contributor to the high concentration of lead in the snow in Greenland. The new study is a result of the continued research led by Dr. Charles Boutron, an expert on the impact of heavy metals on the environment at the National Center for Scientific Research in France. A study by Dr. Boutron published in 1991 showed that lead levels in arctic (北極的) snow were declining.

　　In his new study, Dr. Boutron found the ratios of the different forms of lead in the leaded gasoline used in the United States were different from the ratios of European, Asian and Canadian gasolines and thus enabled scientists to differentiate (區分) the lead sources. The dominant lead ratio found in Greenland snow matched that found in gasoline from the United States.

　　In a study published in the journal Ambio, scientists found that lead levels in soil in the Northeastern United States had decreased markedly since the introduction of unleaded gasoline.

　　Many scientists had believed that the lead would stay in soil and snow for a longer period.

　　The authors of the Ambio study examined samples of the upper layers of soil taken from the same sites of 30 forest floors in New England, New York and Pennsylvania in 1980 and in 1990. The forest environment processed and redistributed the lead faster than the scientists had expected.

　　Scientists say both studies demonstrate that certain parts of the ecosystem (生態系統) respond rapidly to reductions in atmospheric pollution, but that these findings should not be used as a license to pollute.

　　21. The study published in the journal Nature indicates that ________.

　　A) the Clean Air Act has not produced the desired results

　　B) lead deposits in arctic snow are on the increase

　　C) lead will stay in soil and snow longer than expected

　　D) the US is the major source of lead pollution in arctic snow(D)