3. D 细节理解题。由倒数第二段可知“核辐射会对精子的X染色体造成损害”,故D项正确。
4. A 主旨大意题。文章开篇点题,向我们说明了文章的主要内容:根据一项新研究,核电站核泄漏事故和炸弹试验释放的放射性物质导致全世界女婴出生数量减少了数百万。由此可见A项最能概括全文。
.书面表达
为纪念北京奥运会成功举办,将每年8月8日定为“全民健身日”,请你根据以下内容提示介绍这一活动并提倡大家参与:
1. 全民健身倡导全民参与,以青少年和儿童为重点,旨在提高国民体质和健康水平;
2. 全民做到每天参加一次以上的体育健身活动,学会两种以上的健身方法,每年进行一次体质测定;
3. 活动当天,所有的公共体育设施免费开放。
注意:1. 词数100左右;
2. 可适当增加细节,以使行文连贯;
3. 参考词汇 全民健身日National Fitness Day。
范文:
National Fitness Day, which falls on August 8, is to commemorate the opening of the 2008 Beijing Olympics. Aimed at improving the whole nation’s health condition, it focuses on mass participation in sports, especially that of teenagers and children who shoulder our country’s future. All the citizens are encouraged to take exercise more than once every day, master at least two forms of body building and be examined once a year. On that day, all public sports facilities will be open for free, which reflects the Olympic spirit and provides the public with more opportunities to exercise. As is known to all, regular exercise contributes to a healthy body and a healthy mind. So, take part and you will certainly benefit.
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