英语四级2019年12月真题答案公布最新！2019年下半年英语四级听力阅读真题答案写作翻译范文（4）

　仔细阅读(第一套)

46-50:AI助手

46: B It is a course designed for students to learn online.

47:C Students' questions were unsatisfied weith the assistants

48: A She turned out to be a great success

49: D They could not tell her from a real person

50: C Assign her to answer more of students questions

51-55:科学筹款

51: C Not all of them achieved their anticipated goals

52: B To identify reasons for their different outcomes

53: B Its interaction with prospective donors

54: A They should be small to be successfu

5: D Their feeling of connection to the scientists themselves

仔细阅读(第二套)

46-50:饮料征税

46: B It may encourage other us cities to follow suit

47.C Take legal action against it

48: D It criticized the measure through advertising

49: B Help people to fix certain long-time health issues

50: A They are becoming rather sensitive issues

51-55:微波炉

51: D The use of microwaves emits more CO2 than people think

52: A They are becoming more affordable

53. B Improving microwave users' habits

54: A There are far more emissions from cars than from microwaves

55: C It plays a positives role in environmental protection

仔细阅读(第三套)

46-50:教材的命运

46: C)They cant connect professors and students as textbooks do

47: D)Falling sales

48: A)Reform its structures

49:C)Answer questions using their personal experience

50: B)They can learn in an interactive way

51-55:新型物种

51: D)It gets energy from both food and sunlight

52:A)The genes it captures from the sea plant algae

53: D)They can produce chlorophyll on their own

54: C) They don't usually function inside animal

55:B)They can survive for months without eating