单项选择题

Questions 7 to 10 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions.
Now, listen to the conversation.
Many business guests like to eat in their rooms

A．because it is cheaper than in the restaurant.
B．so they can do more work.
C．so they can watch TV while they eat.
D．because they are tired after the long trip.

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问答题

[听力原文]TV RatingsChildren in the United States watch from one to five hours of television every day. That’s a lot of television! Teachers and parents don’t like a lot of the children’s television programs. They think a lot of these programs are not suitable for children. For this reason, every television program in America has a rating. The ratings tell parents about the program. Parents can check the ratings in the newspaper and this gives parents a choice. TV-G programs are suitable for all ages, and families watch them together. TV-Y programs are suit- able for children 2-6, and they don’t frighten children. TV-PG programs are suitable for some children, but they can frighten children. Some parents watch these programs with their children. Then, they can answer their children’s questions. TV-14 programs are suitable for children 14 and older. TV-MA programs are for adults, 17 and older. They are not suitable for children. [听音关键] 本文介绍在美国电视节目分级的情况，关键词有：children，television，programs，ratings，suitable，frighten。[听写难点] ①一些需大写的较专业的词汇，如：TV-G，TV-Y，TV-PG，TV-14，TV-MA等；②数字，如：children 2-6， 14 or older，17 and older；③难词，如：television，suitable。[画龙点睛] 本文虽然涉及到电视节目级别的一些专有名词，但文章并不难，且结构清晰。听第一遍时把握文章先讲述了为什么要电视分级，然后具体讲述哪一级别的电视节目适合什么人收看。另外，文中有一些词词组反复出现，如programs，suitable for，children等，第二三遍书写时如果时间不够，可以先写出首字母或用缩写代替，然后在第四遍及最后2分钟检查时再补充完整。

单项选择题

If we continue to ignore the issue of global warming, we will almost certainly suffer the ______effects of climatic changes worldwide.

A．dubious
B．drastic
C．trivial
D．toxic

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