【題目】根據(jù)句意及漢語提示寫出單詞。

【1】A ______ (鯊魚)is a dangerous animal.

【2】Many _______ (法律) have been made to protect endangered animals.

【3】The sea animals are all important to the ocean's _______ (生態(tài)系統(tǒng)).

【4】Tigers are at the top of the food _______ (鏈條) in the grassland ecosystem.

【5】Do you know the _______ (優(yōu)點) of bike riding?

【答案】

【1】shark

【2】laws

【3】ecosystem

【4】chain

【5】advantages

【解析】

【1】鯊魚shark,根據(jù)a確定使用名詞單數(shù)。

【2】法律law,為可數(shù)名詞,根據(jù)many確定使用名詞復數(shù)。

【3】生態(tài)系統(tǒng),ecosystem。

【4】鏈條chain,食物鏈food chain為固定短語。

【5】優(yōu)點advantage,分析語境可知,此處指的應該是氣性的多個優(yōu)點,因此用復數(shù)。

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