2. 外语
  3. Complete the summary using the list of words, A-K, below. Write the correct letter, A-K, in boxes 7-10 on your answer sheet. Som

Complete the summary using the list of words, A-K, below. Write the correct letter, A-K, in boxes 7-10 on your answer sheet. Som

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问题 Complete the summary using the list of words, A-K, below.
Write the correct letter, A-K, in boxes 7-10 on your answer sheet.
Some scientists believe that laughter first developed out of【R1】______. Research has revealed that human and chimp laughter may have the same【R2】______. Scientists have long been aware that【R3】______laugh, but it now appears that laughter might be more widespread than once thought. Although the reasons why humans started to laugh are still unknown, it seems that laughter may result from the【R4】______we feel with another person.
A combat B chirps C pitch
D origins E play F rats
G primates H confidence I fear
J babies K tickling
【R1】
选项
答案E
解析 利用顺序性原则定位于原文第二段前两句话“To find the origins of laughter,Provinebelieves we need to look at play．He points out that the masters of laughing are children，andnowhere is their talent more obvious than in the boisterous antics，and the original contextis play”。这里“origins”对应题目信息“first developed”，所以正确答案为E(play).
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