Unit 1 Section A How Many Hours Should a Good Student Study per Week? Section B How Well Is English Spoken Worldwide? Section C Scientists Appeal to Reduce Carbon Emission on the Arctic(北极) Hero Worship Unit 2 Section A The Value of Science Section B Breakfast Around the World Section C A Spe Way to Trace Criminals A Generation Gap (代沟) Unit 3 Section A Overwhelming Development of Knowledge Section B Napping May Improve Learning and Memory Section C Measures on Economic Welfare Digital Technology and Mental Processes Unit 4 Section A Not Enough Exercise Leads to Sickness Section B Families in the U. S. Are Changing Section C Poor Situation of Railway Lines in England Rumors Unit 5 Section A How Old Is Too Old to Go Trick-or-treating? Section B Phone Apps May Soon Predict Teen Depression Section C A Lesson from Part-time Jobs Concerns about New Offerings of Technology Unit 6 Section A Differences Between Brits and Americans on Dating Section B Questions to Ask before You Marry Section C A Successful Solution to Reduce Traffic Accidents Repeated New Year Resolutions Unit 7 Section A Gender and Clothing Section B Americans Who Gave Up Passports Tell Why Section C New Meaning of the Terms Well and Wellness Debates on Death Penalty (死刑) Unit 8 Section A Meeting Culture in Different Countries Section B South Korean Women Object to Beauty Pressure Section C The Nature of the Scientific Attitude Unsolved Mysteries Unit 9 Section A Americans Approve of Gene Editing(基因编辑) Only for Health Purposes Section B People Showing Concern about Disappearing Plant Life Section C Americans Should Pay More Attention to Other Cultures Graduation Speeches Unit 10 Section A Eating Together Section B The History of Laser(激光) Section C Limited Knowledge of Physical Sciences Characteristics of Modern Relationships Unit 11 Section A US City Bans Texting while Walking Section B Views on Tattoos Section C The Formula for Happiness Sixty-five Is Not a Cliff's Edge Unit 12 Section A Forests May Be a Solution to Hunger Section B Should You Have the Right-to-die? Section C Holiday Traditions Unhealthy Sleepers Unit 13 Section A What Makes Chickens Happy? Section B Old Style Parenting Starts Debate Section C Effective Reading Punctuality Is Not Always Desired Unit 14 Section A Many Good Insects Are Disappearing Section C The Unhappy Way Section C How to Succeed in International Trade? Children Need Room to Grow Unit 15 Section A Conflicting Values Between the Young and the Elders Section B Paper--More than Meets the Eye Section C More Teens Volunteer to Public Service Rats Will Soon Be Man's New Best Friends 参考答案
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