1.Before he was 14 years old,Philo ________.
A.had the idea of sending pictures via the air
B.had taught himself a great deal in science
C.had helped his parents on their family’s farm
D.had had a very strong interest in science
答案 D
解析 细节理解题。根据第一段中的“He asked his teacher for special help in science.”可知答案。
2.How did Philo get the idea of inventing a television?
A.By learning from his science teacher.
B.By reading a story in a magazine.
C.By thinking hard on his own.
D.By using his information about electrons.
答案 B
解析 细节理解题。根据第二段首句“One night,Philo read a magazine story about the idea of sending pictures and sound through the air.”可知答案。
3.The underlined word “it” in Paragraph 4 refers to ________.
A.a container sending pictures and sound through the air
B.a receiver that holds light and sends it on a line of electrons
C.a light box with a line of electrons in a bottle
D.a way to make electrons send pictures quickly
答案 B
解析 代词指代题。根据第四段可知it指代上文提到的电子接收器,能够收集和传送光线。
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