The astronauts started their journeys in rockets forward by jets of hot gas. A．drove B．driven C．driving D．to drive 题目和参考答案——青夏教育精英家教网—

题目内容

The astronauts started their journeys in rockets _____ forward by jets of hot gas.

A．drove B．driven C．driving D．to drive

【答案】

【解析】

试题分析：考察分词作定语。本题中的动词drive与名词rockets构成被动关系，故使用过去分词短语在句中作定语。句意：宇航员坐在有喷气式气体驱动的火箭中开始了他们的旅行。故B正确。

考点：考察分词作定语

点评：当分词做定语的时候，如果构成分词的动词与名词构成主动关系，就使用现在分词做定语；当二者构成被动关系，使用过去分词做定语。单独的一个分词做定语要放在名词的前面，分词短语做定语要放在分词的后面。

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Other foods come in bite （一口） sizes. The astronaut puts a whole piece in his mouth at once. There can be no crumbs（碎屑）. Crumbs would float around the spaceship and get in the way. Meat and cake often come in bite-size pieces.

Astronauts cannot drink water from open cups. The water would float in drops into the air. The water is put in the special gun. The astronaut shoots the water into his mouth.

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