题型：语法填空（语篇） 题类：常考题 难易度：普通
牛津版（深圳•广州）2019-2020学年初中英语九年级上册Module 1 Unit 2 Great minds第3课时Grammar
Dr Irene Pepperberg, a (science)at a university, has worked with Alex for many years.(teach)Alex to speak and understand wasn't easy at first. He had to learn one word at a time. Irene and an assistant(助手)would teach Alex by (show)him the meaning of a word. Irene would hold up an object, saying, "What's this? "Her assistant would give the word "candy". It took Alex many weeks (learn)his first word. After that, each new became easier and easier for him. Why did Irene spend so much time (get)a parrot to talk? Scientists like Irene are interested discovering how intelligent animals are and how their brains work. But studying animal intelligence has always been difficult, partly because animals haven't been able to communicate (clear)with humans. Teaching Alex to speak words that he understands has let Irene (talk)to him directly. She can ask him questions, and he can answer them in English. In this way, Irene is finding things Alex can do. She has found out that parrots are much smarter than scientists used to think.
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