Listentotheconversationandanwerthemultiplechoicequestions.OnlyONEchoiceiscorrectforeachquestion.

1、单选题：
‏What are the two speakers talking about?‏
选项：
A: The reason for the rising popularity of smart speakers
B: The progress in the research and development of smart speakers
C: The conveniences to people’s lives brought by smart speakers 
D: Whether or not users can trust smart speakers 
答案: 【 Whether or not users can trust smart speakers 】

2、单选题：
What is the attitude of Florian Schaub, assistant professor at the University of Michigan School of Information, toward the government and companies that develop smart speakers?‍‍
选项：
A: He believes that they should cooperate to develop more advanced smart speakers.
B: He is pessimistic about the space of growth left in the market of smart speakers.
C: He is worried that they may cooperate to secretly listen to people’s private talks.
D: He believes that the government should offer more support to companies that develop smart speakers. 
答案: 【 He is worried that they may cooperate to secretly listen to people’s private talks.】

3、单选题：
What does Florian Schaub mean by “bug”?​ ​‌​
选项：
A: an insect or similar small creature
B: an illness caused by small organisms
C: a mistake in the computer program
D: tiny hidden microphone which transmits what people are saying
答案: 【 tiny hidden microphone which transmits what people are saying】

4、单选题：
​Why are smart speakers so popular?‌​‌
选项：
A: People consider them as symbols of social status.
B: People enjoy the convenience that smart speakers provides.
C: People find them good helpers at work.
D: People need them to help with their kids’ study.
答案: 【 People enjoy the convenience that smart speakers provides.】

5、单选题：
​How many US households used smart speakers in December 2018?​
选项：
A: 10 million      
B: 66 million
C: 118 million 
D: 180 million    
答案: 【 118 million 】

TestforChapter2

1、单选题：
Part II. Passage (Shadowing and Gist)​ ​Directions: Listen to the passage and choose the best answer to each of the following questions.​What does the speaker really describe in the speech?          &