1.A healthy and better-educated new generation is a guarantee for sustainable economic and social development of our country。

　　2.The victory of Chinese women’s volleyball team at the Olympic Games was a great inspiration to all Chinese people。

　　3.The ability to take part in space exploration represents the level of a nation’s scientific and economic development。

　　4.Many students find giving an effective oral presentation difficult and stressful。

　　5.Juvenile delinquency, one of the most controversial issues throughout the world, has attracted a lot of attention from both the social scientists and the general public。

　　6.In the past three decades, many countries have formulated laws and regulations to protect animals from being abused or killed, and many have set up reservation areas to protect endangered animals。

　　7.Without proper rewards, those who have done good deeds may sometimes feel disappointed and many others will simply shy away from doing good deeds。

　　8.Some people may be addicted to netsurfing, which impairs their physical and mental health。

　　9.Lakes and rivers are becoming seriously polluted, which aggravates (worsens) the shortage of fresh water。

　　10.Whether you plan to stay for a week or for a year in a new place, you will benefit from learning about the place before you go。

　　1。健康的、受过良好教育的一代新人是我国经济、社会可持续发展的保障。

　　2。中国女排在奥运会上所取得的胜利极大地鼓舞了中国人民。

　　3。参与太空探索的能力代表了一个国家的科技和经济发展的水平。

　　4。很多学生觉得有效的口头表达困难而紧张。

　　5。青少年犯罪是当今世界颇有争议的问题之一，吸引了社会学者和普通公众的广泛注意。

　　6。过去的三十年中，许多国家都制定了法律和法规，保护动物免遭虐待或屠杀，还有许多国家建立了保护地，保护濒临灭绝的动物。

　　7。没有适当的回报，那些做了好事的人有时会觉得失望，而许多其他的人则干脆不愿做好事。

　　8。有些人沉迷于网上冲浪，这对他们的身心健康有害。

　　9。湖泊河流正在被严重污染，这使淡水的短缺变得愈加严重。

　　10。在一个新地方无论是呆一周还是呆一年，去之前了解一些当地的情况肯定有益。

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