He busy yesterday, or he you with your experiment. A. was; had helped B. was; would have helped C. had been; would have helped D. were; would have helped 题目和参考答案——青夏教育精英家教网—

题目内容

He _______ busy yesterday, or he _______ you with your experiment.

A. was; had helped B. was; would have helped

C. had been; would have helped D. were; would have helped

【答案】

【解析】

试题分析：本题实际上考察的是or(否则，要不然)引导的含蓄的虚拟条件句。前面句中含有yesterday这个过去时的时间状语，故使用过去时即可。Or后面的句中要使用与过去事实相反的虚拟语气would have done的形式。句义：昨天他很忙，要不然他就会帮助你做实验了。故B正确。

考点：考察虚拟语气

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67. The kite made by Li Ye was named after a Chinese music instrument because __________ .

A. it was made of bamboo B. it could sound in the sky

C. Li Ye was a musician D. it looked like a whistle

68. What led to the invention of the kite according to the passage?

A. Wars. B. An eagle.

C. Motse's interest in animals.

D. Motse's dream of flying.

69. Why was kite-flying not a popular recreation among common people at first?

A. Because they were too busy to fly kites.

B. Because they were not allowed to fly kites.

C. Because it was difficult to make kites.

D. Because it was expensive to make kites.

70. Which of the following statements might Dr. Needham agree with?

A. The Chinese people first tried to invent airplanes.

B. The Chinese spread the idea of flying to Europe.

C. The invention of kites in China is great.

D. The invention of kites achieved the dream to fly.

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