②The two stone lions standing in front of Tian'anmen saw/witnessed many great historic events.

　　天安门前的这两只石狮目睹了许多重大的历史事件。

　　Ⅰ.基础点全练

　　1. 单句语法填空

　　①Without your help, I would_have_failed (fail) the exam last week.

　　②Having suffered a lot from wars, people in that area call for an end to wars eagerly.

　　③Increased production will, in turn, lead to increased profits.

　　④If you stick to that, you shall answer for the consequences.

　　⑤We must break away from convention and adopt as many advanced techniques as possible.

　　⑥What on earth led you to_change (change) your mind at last?

　　⑦Our hometown has_witnessed (witness)great changes since the reform and opening policies started.

　　⑧Given (give) another hour, I can also work out the problem.

　　2．运用所学短语完成片段

　　The last few years have seen the severe damage to the environment and ①apart_from (除……以外) this, it is ②beyond_our_control (超出了我们的控制). Given the latest data, it seems that humans should ③answer_for (对……负责) this. ④_Looking_ahead (展望未来), it's time for us to take action; or else, it would ⑤lead_to (导致) greater damage. Fortunately, governments all over the world have adopted various ways to protect the environment. ⑥After_all (毕竟), we have only one earth.

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