Question 18 is based on the passage you have just heard.

听力原文

        Homework is an important part of schooling, but the purposes of giving children homework will change as they grow older. (16) [At the primary level, the main aim is to cultivate good habits, like learning to plan and exercising self-discipline.] During the secondary school years, extending what is learned at school is positively related to academic achievement. So the content of homework becomes more important.

        So how can you help your child do their best? (17) [Creating an ideal working environment will make it easier for them to get down to their assignments quickly.] Make sure it’s free of distractions, and for primary school children, at least, somewhere near you. So you can answer questions and offer encouragement. You probably have to help younger children plan their session, but it’s important that by the end of primary school, it’s second nature.

         Get them to tell you everything they have to do, then encourage them to establish an order in which they do work. (18) [When there are several different assignments, make sure they begin with one they enjoy.] So it seems easy to get started. It’s best to take on the most difficult task second, once they’re settled, but before they get tired. If older children have more than an hour of homework, encourage them to schedule a short break to stretch. If you encourage them to tell you what they’ve learned, they'll absorb the information more deeply and remember it more readily.

18. What should children do to deal with multiple assignments?

解析：C。录音中提到，当有好几项不同的作业时（several different assignments），确保孩子从喜欢的开始。C项与此内容相符，其中start是对begin的同义替换，enjoy原词复现，故为正确答案。

错项排除：A项利用录音中的before they get tired进行干扰，但录音中是说在进行最难任务时，应该在疲累之前开始，并不是处理多项任务，A项张冠李戴，故排除。录音中提到，最难的那项应该放在第二位（second），B项与此相悖，故错误。D项利用录音中的important进行干扰，但录音中对于多项任务，并未提及最重要的几项，故D项排除。