题目内容
20．An American educational expert，Frederick M．Hess says that a long summer vacation doesn't make sense in today's world．This summer，50 million kids will spend much time talking online，watching TV，plsying video games and asking older brothers or sisters to take them to the supermarket．They will also be putting their academic futures at risk．
During much of the 20th century，many Americans worked in factories that did not need a college degree but still offered a high salary．Also，in the 19th century，there was no air condition．And poor hygiene（卫生）meant that crowded schools had health risks．
Things have changed．For today's students，academic skills are key to future success..many nations don't give kids an American-style summer vacation．They offer no more than seven consecutive（连续的）weeks of vacation．Most American school districts offer up to 13 weeks．To compete in global marketplace，Americans must be prepared to go up against international competitors．
Summer vacation also causes challenges for today's families．In the 1960s，more than 60% of families had a stay-at-home mum．Now，two-thirds of American children live families where every adult works．For these families，summer vacation can be more burden than break．Someone must watch the kids．
But the biggest problem may be how summer vacation hurts academic achievement．Scientist have found that disadvantaged students lose important ground in the summertime．
A school year can allow time-limited teachers to conduct richer and more imaginative lessons．Schools would have more time for sports，languages，music and the arts．
64．Before the 20th century，a long summer vacation mightC．
A．cause career failure for Americans B．reduce income for Americans
C．reduce health risks for students D．cause loss in global market for America
65．We can know that an American-style summer vacationC．
A．lasts no more than two months B．lasts less than three months
C．lasts as long as three months D．lasts as long as four months
66．According to the text，who will benefit from a long school year？A
A．American students，teachers and parents．
B．American students，parents and shop owners．
C．American students，parents and international competitors．
D．American students，teachers and international competitors．
67．How many reasons did the writer give to support his/her opinion？D
A．One． B．Two． C．Three． D．Four．
分析 作者在文章中介绍长暑假对学生没有意义的观点，主要因为：长暑假不利于学生的成绩，增加父母的负担，不利于老师安排课程，现在的学校设施齐备，不需要放长假．
解答 64．C．细节题：从第三段的句子：Also，in the 19th century，there was no air condition．And poor hygiene （卫生） meant that crowded schools had health risks．可知在20世纪前长暑假会让学生减少健康的危害．故选C．
65．C．细节题：从第四段的句子：Most American school districts offer up to 13 weeks．可知大部分美国的学校提供3个多月的暑假．故选C．
66．A．细节题：从倒数第三段的句子：Someone must watch the kids．和最后一段的内容，可知长学年可以使家长，学生和父母受益，故选A．
67．D．推理题：纵观全文，文章先介绍了作者的观点长暑假对学生没有意义，然后给出了四个理由：长暑假不利于学生的成绩，增加父母的负担，不利于老师安排课程，现在的学校设施齐备，不需要放长假．故选D．
点评 考察学生的细节理解和推理判断能力，做细节理解题时一定要找到文章中的原句，和题干进行比较，再做出正确的选择．在做推理判断题不要以个人的主观想象代替文章的事实，要根据文章事实进行合乎逻辑的推理判断．
练习册系列答案
相关题目