新課程能力培養(yǎng)九年級英語人教版
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1. When did modern humans originate in Africa?
A. About 70,000 years ago.
B. About 90,000 years ago.
C. About 20,000 years ago.
D. About 200,000 years ago.
答案：D
2. What does the second paragraph mainly tell us?
A. L0 is really a kind of DNA.
B. Modern humans came from an area called Okavango.
C. DNA can help us know about where a person comes from.
D. Scientists studied DNA from 200 people who live near Okavango today.
答案：B
3. According to Professor Hays, L0 is important because ____.
A. 200 people who live near Okavango had a lot of L0
B. people with L0 had water, hunting and farmland
C. people with L0 are from the Khoisan people
D. L0 records people’s migration as a time - stamp
答案：D
4. Who might write this passage?
A. A tour guide in Africa.
B. An English teacher in junior high school.
C. A scientist of human origin.
D. A student who studies maths in university.
答案：C
