高三英語Global warming教案
"however, the weight of scientific evidence is now behind the hypothesis (假設(shè)) that it was seafaring ( 航海) polynesians who sailed from the islands to south america and returned," says archaeologist patrick v. kirch of the university of california, berkeley.
41. what is the passage mainly about?
a. it was difficult for ancient people to travel between polynesia and south america.
b. the first people who lived in chile and polynesia.
c. valuable chicken bones have been found in chile.
d. chickens -- the first to travel between polynesia and south america.
42. when did the first european explorers reach south america?
a. about 620 years ago. b. about 2.000 years ago.
c. about 600 years ago. d. about 520 years ago.
43. people found that chickens were among the first to travel from polynesia to south america by ___________.
a. comparing the colors of eggs laid by chickens from the two places
b. comparing the dna of chicken bones dug up on the polynesian islands and that of the chicken bones from south america
c. studying some previous theories
d. asking the natives of south america
44. what do we learn from the passage?
a. european explorers and their chickens were the first to sail to south america.
b. chickens in south america have the same ancestors as those in polynesia.
c. in ancient times, a 6,000-mile channel separated polynesia from south america.
d. before the polynesians arrived in south america, the inca people had lived there. '
45. why was it difficult for people to travel across the oceans in ancient times, according to the passage?
1) it was difficult to take many chickens as food.
2) people had difficulty making careful and detailed sailing plans.
3) people lacked maps and the knowledge of weather forecasting.
4) people had to make boats by hand.
5) it took great determination to cross an ocean.
a. 1) 4) 5) b. 2) 3) 4) c. 2) 4) 5) d. 1) 2) 3)
答案：
現(xiàn)在飛越海洋是一件輕而易舉的事情，然而幾個世紀(jì)以前渡過海洋需要周密的計劃、人造船只和勇氣。是誰最先渡過了哪個海洋一直是科學(xué)家和歷史學(xué)家研究的話題，最近研究結(jié)果發(fā)現(xiàn)雞可能也是最早渡過玻利尼西亞和南美之間的海洋的。