2019年12月英語四級(jí)真題答案官方完整版！2019下半年英語四級(jí)翻譯寫作范文聽力閱讀原文真題及答案（4）

仔細(xì)閱讀（第一套）：

仔細(xì)閱讀（第二套）：

仔細(xì)閱讀（第三套）：

卷三 仔細(xì)閱讀

46-50:教材的命運(yùn)

46：C)They can’t 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：新型物種

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 cells

55：B）They can survive for months without eating