B. low pay for work

　　C. heavy workload

　　D. lack of training

　　答案与解析　A　考查细节理解。由第六段“It also asked mothers about the challenges they face, with 80 per cent making emotional (情感的) demand as the hardest thing about motherhood”可知，对大多数母亲来说，最大的挑战来自情感需求。

　　3．What is stressed in the last paragraph?

　　A. Mothers' importance shows in family all year long.

　　B. The sacrifices mothers make are huge but worthwhile.

　　C. Mothers' devotion to children can hardly be calculated.

　　D. Investing time in parenting would bring a financial return.

　　答案与解析　B　考查段落大意。由最后一段中的“can be never­ending, but children are also sources of great joy and happiness. Investing (投入) in time for parenting and raising relationships is money well spent”可知，母亲所作的牺牲很大但非常值得。

　　4．What can we conclude from the study?

　　A. Mothers' working hours should be largely reduced.

　　B. Mothers should balance their time for work and rest.

　　C. Mothers' labour is of a higher value than it is realised.

　　D. Mothers should be freed from housework for social life.

　　答案与解析　C　考查推理判断。由第一段中的“But, according to a new study, we should be placing a higher value on motherhood all year”可知，母亲的劳动有更高的价值。

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