This visit not only broadened my horizons but also aroused my interest on science and technology.

　　答案：第二句：left后加for

　　第三句：the→a; brief→briefly

　　第四句：late→later；are→were

　　第五句：they→we

　　第六句：achievement→achievements

　　第七句：after→before

　　第八句：去掉returned后的back

　　第九句：on→in

　　Ⅲ.书面表达

　　不少学校禁止中学生把手机带到学校。此事引发学生家长的热议。你校打算举办一场英语辩论赛，要求辩手围绕"Should students be forbidden to bring their mobile phones to school？"展开辩论。你打算参加辩论赛，请写一篇辩论稿。内容包括：

　　1．你的观点；

　　2．给出几点理由；

　　3．得出结论。

　　注意：1.词数100左右。

　　2．可以适当增加细节，以使行文连贯。

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　　参考范文：

　　Many schools forbid students to bring their mobile phones to school, which has caused heated debate among parents. I am in favor of the measure. My reasons are as follows.

　　First, there is no need to bring mobile phones to school because students can use public phones to contact their parents in case of an emergency. What's more, parents can call the teachers to reach their children. Second, mobile phones distract students from their lessons as they may chat online with their friends or surf the Internet after class. Third, students are likely to compare the brand of their mobile phones with that of their classmates'.

　　To sum up, I'm strongly for banning mobile phones in school.