《2025年通城学典初中英语阅读组合训练八年级上册南通专版》

( B)1. What kinds of matter is the earth's outer core made up of?
A. Water, soil and rocks.
B. Iron and nickel mostly.
C. Water.
D. Iron crystals mostly.
( A)2. What does the underlined word “structure” in Paragraph 2 mean?
A. Part.
B. Building.
C. Soil.
D. Picture.
( D)3. How is the fifth layer different from the inner core?
A. It is much harder than the inner core.
B. It is solid and made up of iron alloy mostly.
C. It's liquid and there are no iron crystals there.
D. Iron crystals there point in a different direction.
( C)4. What may this finding tell us?
A. Changes are always taking place inside the earth.
B. It is still quite hot inside the earth's core.
C. The earth might have experienced another cooling event in the past.
D. We shouldn't believe in textbooks.

答案： 1. B 2. A 3. D 4. C