【題目】根據(jù)短文內(nèi)容，選擇方框內(nèi)的單詞，并用其適當(dāng)?shù)男问教钊肟瞻滋帲苟涛囊馑歼B貫通順、語法正確。

like why bird usually discover


Do you have a dog, a cat or a bird at home? Do you watch them carefully?
Scientists have found that cats, dogs, and even goldfish are left-handed or right-handed. These scientists work in Queen's Belfast University. They said that pets are left-handed or right-handed people. As we all know, it is important for animals to be good at getting food. Some like to get food with their right hands, but some like to get food with the left hands. That's the animals are left-handed or right-handed.
The scientists have that male cats and dogs are almost left-handed, and female cats and dogs are right-handed, because their work in everyday life is different.
People think that left-handed people are better at languages; some even think that left-handed people are smarter. When it goes to animals, it makes animals act more quickly.

【答案】birds；like；why；discovered；usually
【解析】本文講述的是動物也有用左、右“手”的習(xí)慣，雄性習(xí)慣用左手，雌性多用右手。人們認(rèn)為用左手的人更聰明，而動物界里，用左手的會行動更敏捷。
（1）句意：科學(xué)家發(fā)現(xiàn)貓、狗、鳥甚至金魚分習(xí)慣用左手或右手。與cats, dogs, 并列的，可知選擇動物名，結(jié)合被選項，可知本空選bird，可數(shù)名詞用復(fù)數(shù)表示種類，故填：birds。
（2）句意：他們說寵物也像人一樣，分為習(xí)慣用左手或右手。像……：like。
（3）句意：那就是動手也有習(xí)慣左手或右手的原因。上文闡明了動物因為經(jīng)常用某只腳獲取食物，因此有了用左、右手的習(xí)慣。表示原因，用why引出。故填：why。
（4）句意：科學(xué)家已經(jīng)發(fā)現(xiàn)雄貓和狗差不多是左手的。介紹研究成果，“發(fā)現(xiàn)”：discover，前有助動詞have，可知句子用的現(xiàn)在完成時態(tài)。故填：discovered。
（5）句意：人們通常認(rèn)為習(xí)慣用左手的人們更擅長語言，甚至認(rèn)為習(xí)慣用左手的更聰明。根據(jù)句子結(jié)構(gòu)可知本空填頻率副詞，結(jié)合被選項及句意，可知本空填：usually。

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