accomplish something great.

　　人们常常要战胜很多失败之后才能取得伟大的成就。

　　5．____________(遵循这些建议) your time spent doing research on the Internet will be much more worthwhile.

　　【答案】　1.Without；would have　2.the way　3.either；or　4.before　5.Follow these tips, and

　　Ⅳ.回顾话题

　　用本单元词汇或句式完成下列写作任务

　　当我们需要信息时，首先会求助于因特网。只要点击一下鼠标，我们就能按照命令找到大量信息。然后，我们对相关的信息加以分类以便使用。不过，我们有时难以判断所找到的信息是否准确。所以，我们还需花费时间做些改正。

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　　【参考范文】　

　　When we are in need of information, we may first turn to the Internet for help.Click the mouse, and we can get abundant information at our command.Then we classify the relevant information so as to use later.However，sometimes it is difficult for us to judge whether the information on the Internet is accurate or not.So we should bother to make some corrections.