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本讲为2006年下半年新的教学内容，请对照教材、练习册和语法书听录音！
1. In deciding whether to pursue a course of action, they try to estimate its __ impact on the voters.
Like dislike unlike likely alike
Be likely to do
8. Whether voters accept this image depends more on external factors than on a candidate’s personal characteristics.
9. In 1991, after the Gulf War, Bush’s approval rating reached 91 percent, the highest level recorded since polling __ (begin) in the 1930s.
Spend on + n.
Spend (in) + doing
adj. 外部的，外面的，外来的，表面的
n.
