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Câu hỏi: Read the following passage and blacken the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following questions.
Archaeological records ― paintings, drawings, and carvings of humans engaged in activities involving the use of hands ― indicate that humans have been predominantly right-handed for more than 5,000 years. In ancient Egyptian artwork, for example, the right-hand is depicted as the dominant one in about 90 percent of the examples. Fracture or wear patterns on tools also indicate that a majority of ancient people were right-handed.
Cro-Magnon cave paintings some 2,000 years old commonly show outlines of human hands made by placing one hand against the cave wall and applying paint with the other. Children today make similar outlines of their hands with crayons on paper. With few exceptions, left hands of Cro-Magnons are displayed on cave walls, indicating that the paintings were usually done by right- handers.
Anthropological evidence pushes the record of handedness in early human ancestors back to at least 1.4 million years ago. One important line of evidence comes from flaking patterns of stone cores used in toolmaking: implements flaked with a clockwise motion (indicating a right-handed toolmaker) can be distinguished from those flaked with a counter-clockwise rotation (indicating a left-handed toolmaker).
Even scratches found on fossil human teeth offer clues. Ancient humans are thought to have cut meat into strips by holding it between their teeth and slicing it with stone knives, as do the present-day Inuit. Occasionally the knives slip and leave scratches on the users' teeth. Scratches made with a left-to-right stroke direction (by right-handers) are more common than scratches in the opposite direction (made by left-handers).
Still other evidence comes from cranial morphology: scientists think that physical differences between the right and left sides of the interior of the skull indicate subtle physical differences between the two sides of the brain. The variation between the hemispheres corresponds to which side of the body is used to perform specific activities. Such studies, as well as studies of tool use, indicate that right- or left- sided dominance is not exclusive to modern Homo sapiens. Populations of Neanderthals, such as Homo erectus and Homo habilis, seem to have been predominantly right-handed, as we are.
Why does the author mention Homo erectus and Habilis in the last paragraph?
A. To contrast them with modern humans
B. To explain when human ancestors began to make tools
C. To show that early humans were also predominantly right-handed
D. To prove that the population of Neanderthals was very large
Archaeological records ― paintings, drawings, and carvings of humans engaged in activities involving the use of hands ― indicate that humans have been predominantly right-handed for more than 5,000 years. In ancient Egyptian artwork, for example, the right-hand is depicted as the dominant one in about 90 percent of the examples. Fracture or wear patterns on tools also indicate that a majority of ancient people were right-handed.
Cro-Magnon cave paintings some 2,000 years old commonly show outlines of human hands made by placing one hand against the cave wall and applying paint with the other. Children today make similar outlines of their hands with crayons on paper. With few exceptions, left hands of Cro-Magnons are displayed on cave walls, indicating that the paintings were usually done by right- handers.
Anthropological evidence pushes the record of handedness in early human ancestors back to at least 1.4 million years ago. One important line of evidence comes from flaking patterns of stone cores used in toolmaking: implements flaked with a clockwise motion (indicating a right-handed toolmaker) can be distinguished from those flaked with a counter-clockwise rotation (indicating a left-handed toolmaker).
Even scratches found on fossil human teeth offer clues. Ancient humans are thought to have cut meat into strips by holding it between their teeth and slicing it with stone knives, as do the present-day Inuit. Occasionally the knives slip and leave scratches on the users' teeth. Scratches made with a left-to-right stroke direction (by right-handers) are more common than scratches in the opposite direction (made by left-handers).
Still other evidence comes from cranial morphology: scientists think that physical differences between the right and left sides of the interior of the skull indicate subtle physical differences between the two sides of the brain. The variation between the hemispheres corresponds to which side of the body is used to perform specific activities. Such studies, as well as studies of tool use, indicate that right- or left- sided dominance is not exclusive to modern Homo sapiens. Populations of Neanderthals, such as Homo erectus and Homo habilis, seem to have been predominantly right-handed, as we are.
Why does the author mention Homo erectus and Habilis in the last paragraph?
A. To contrast them with modern humans
B. To explain when human ancestors began to make tools
C. To show that early humans were also predominantly right-handed
D. To prove that the population of Neanderthals was very large
Tại sao tác giả nhắc đến Người đứng thẳng và Người khéo léo trong đoạn cuối?
A. Để đối chiếu họ với người hiện đại
B. Để giải thích khi nào tổ tiên người cổ đại bắt đầu chế tạo công cụ
C. Để thể hiện rằng người tiền sử cũng thuận tay phải
D. Để chứng minh rằng quần thể người Neanderthal rất lớn
Thông tin:
Populations of Neanderthals, such as Homo erectus and Homo habilis, seem to have been predominantly right-handed, as we are. (Các quần thể người Neanderthal, như Người đứng thẳng và Người khéo léo, dường như cũng đã thuận tay phải, như chúng ta bây giờ.)
A. Để đối chiếu họ với người hiện đại
B. Để giải thích khi nào tổ tiên người cổ đại bắt đầu chế tạo công cụ
C. Để thể hiện rằng người tiền sử cũng thuận tay phải
D. Để chứng minh rằng quần thể người Neanderthal rất lớn
Thông tin:
Populations of Neanderthals, such as Homo erectus and Homo habilis, seem to have been predominantly right-handed, as we are. (Các quần thể người Neanderthal, như Người đứng thẳng và Người khéo léo, dường như cũng đã thuận tay phải, như chúng ta bây giờ.)
Đáp án C.