2. 外语
  3. It’s strange that birds know when to ______ and find their way back home.

It’s strange that birds know when to ______ and find their way back home.

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问题 It’s strange that birds know when to ______ and find their way back home.
选项 A、immigrate
B、migrate
C、emigrate
D、immigrant
答案B
解析 近义词辨析。前三个选项均为动词，都含有“移居”的意思。immigrate意为“移居入境”，指从外国移来，如：Britain immigrated many colonists to the New World．(英国把大量殖民者移居到新大陆。) migrate意为“移居，迁移”，指从一地移住另一地，尤指鸟类的迁徙，如：Some birds migrate to find warmer weather．(有些鸟迁徙以寻找更温暖的气候。)emigrate意为“移居外国”，指离开本国永远移居外国，如：The family wanted to emigrate to Canada．(这一家想移民到加拿大。)immigrant是名词，意为“移民，侨民”，如： Immigrants can’t work in the United States without a permit．(在美国如果没有许可证，移民就不能工作。)本题所指的是鸟类的迁徙，故应选B)。
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大学英语四级

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