17.There are sevencontinents(洲) in the world.

分析 世界上有七大洲.

解答 continents 考查名詞.根據(jù)所給的漢語(yǔ)提示"洲"和空前的數(shù)詞seven可知,此處應(yīng)用名詞復(fù)數(shù)形式,故填continents.

點(diǎn)評(píng) 名詞是中學(xué)英語(yǔ)的重要語(yǔ)法,解題時(shí)首先要根據(jù)語(yǔ)境和邏輯來(lái)推斷出空所需要的詞性,或者是根據(jù)句子結(jié)構(gòu)的需要來(lái)推斷詞性,然后根據(jù)所給的漢語(yǔ)提示寫出正確答案.

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