A widely held theory today is that the ancestors of today’s Native American people travelled to the Western Hemisphere form Asia between 25,000 and 30,000 years ago, which was around the same time that Japan was being settled by Stone Age inhabitants. There is dental evidence and blood-type evidence to support this theory. A dental pattern that is found among most ancient human fossils in the America is consistent with the dental pattern of ancient human fossils in northeastern Asia. In blood type, the fact that blood type B is almost nonexistent among Native American population but exists in Asian population leads to the conclusion that migrations to America from Asia took place before the evolution of blood type B, which is believed to have occurred around 30,000 years ago. In addition to the dental and blood-type evidence, more general evolutionary evidence suggests that it took more than 20,000 years for the variety of physical traits common to Native American population to evolve, and linguists broadly concur that the development of the approximately 25,000 years. The proposed migration from Asia to the Americas took place during the Ice Age that characterized the Pleistocene epoch. During that period of time, there were huge glaciers holding enormous volumes of water, and because of the huge glaciers, sea levels were as much as 10 meters lowers than they are today. The reduced sea levels meant that Asia and North America were linked with a 750-mile-wide landmass, named Beringia after the Bering Straits that now cover it, and consisted of treeless grassland with warm summers and cold dry winters. Because of the geographical features of Beringia during the Pleistocene epoch, it was an environment well-suited to the large mammals of the time, such as mammoth, mastodon, bison, horse, and reindeer as well as to the tone Age hunters who depended on these animals for their existence. The Stone Age inhabitants of the area used these animals not only for food but also for shelter, clothing, and weapons; they were able to spread out and expand their hunting areas as their populations grew, and their populations most likely grew at a very high rate because of the huge amount of territory available for expansion.
In spite of the evidence, not all anthropologists are convinced that the migrations from Asia to the Americas took place as early as25,000 to 30,000 years ago. There is general agreement that the migrations took place, but some believe that the migrations took place much later…
31.The word “held” could best be replaced by .
Accepted B. possessed C. contained D. carried
(15 Điểm)

A

B

C

D
32.The word “support” could best be replaced by .
A. Hold B. finance C. confirm D. stiffen
(15 Điểm)

A

B

C

D
33.Which of the following is NOT provided as evidence to support the hypothesis that the migration discussed in the passage occurred 25,000 to 30,000 years ago?
A. Dental patterns common to Asians and Native Americans
B. Variations in blood types between Asians and Native Americans
C. The number of Native American languages in existence today
D. The human bones found in Beringia
(15 Điểm)

A

B

C

D
34.The phrase “broadly concur” is closest in meaning to .
A. have the contrary idea
B. have extensive debates
C. openly question
D. are in general agreement
(15 Điểm)

A

B

C

D
35.In paragraph 2, what best paraphrases the sentence “During that period of time, there were huge glaciers holding enormous volumes of water, and because of the huge glaciers, sea levels were as much as10 meters lower than they are today.”?
A. Since the Ice Age, the amount of water in the oceans has decreased dramatically.
B. During the Ice Age, sea levels were low because much water was frozen.
C. Glaciers have grown tremendously since the last Ice Age.
D. During the Ice Age, huge glaciers displaced a lot of water, causing the oceans to rise.
(15 Điểm)

A

B

C

D
36.It is stated in the passage that Beringia .
A. was the source of the name of Bering Straits
B. used to be covered with trees
C. is now submerged
D. was unable to support animal life
(15 Điểm)

A

B

C

D
37.The phrase “well-suited” is closest meaning to .
A. equal to
B. appropriate for
C. flattering to
D. modified for
(15 Điểm)

A

B

C

D
38.The word “they” refers to .
A. Stone Age inhabitants
B. animals
C. weapons
D. their hunting areas
(15 Điểm)

A

B

C

D
39.It is implied in the passage that the Stone Age inhabitants of Beringia were most likely .
A. dependent on agriculture
B. poor hunters
C. involved in raising livestock
D. mobile
(15 Điểm)

A

B

C

D
40.The author begins paragraph 3 with the expression “In spite of” to show that the fact that some anthropologists were not convinced by the evidence was .
A. unexpected
B. a natural conclusion
C. unsurprising
D. logicalTrình đọc Chân thực
(15 Điểm)