【題目】閱讀下列短文，根據(jù)短文內容填空。在未給提示詞的空白處僅填寫1個適當?shù)膯卧~，在給出提示詞的空白處用括號內所給詞的正確形式填空。

How can horses find their way back from a strange environment? For most people, that would be impossible without a map. Horses have a special system in their brains, and it works just 【1】 GPS. It shows signs for trees and other objects in their home areas. It also takes notes of new things in new areas. 【2】 horses keep their attention on those signs, they know which directions 【3】 (go). Who needs a self-driving car when you can have a horse? You’ll always get home safe and sound.

【答案】

【1】like

【2】When

【3】to go

【解析】

這是一篇說明文。文章介紹了馬如何可以從陌生的環(huán)境中找到回去的路。

【1】考查介詞。句意：馬腦中有一個特殊的系統(tǒng)，它的工作原理像GPS一樣。此處表示“將馬腦中的系統(tǒng)比喻成GPS”。故填like。

【2】考查時間狀語從句。句意：當馬將注意力放在這些標志上時，它們知道該往哪個方向走。分析句子結構可知，逗號前面應為從句。結合上下文語境和語義可知，該從句為時間狀語從句，因此使用從屬連詞when。故填when。

【3】考查動詞不定式。句意：當馬將注意力放在這些標志上時，它們知道該往哪個方向走。該句子中的“特殊疑問詞which+動詞不定式”作動詞know的賓語。該結構可以改寫成由該疑問詞引導的從句，即賓語從句：When horses keep their attention on those signs, they know which directions they should go.故填to go。

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