试卷详情
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托福-23
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[简答题]TOEFL Reading Passage 2
The Mediterranean’s Killer Algae
1. Today there are many invasive species threatening ecosystems all over the world, but few are of as much concern as Caulerpa taxifolia.This species of green algae grows in long, thin blades similar in appearance to sea grass. Each individual alga is single-celled, with a length of up to a meter, they are some of the largest cells in the world. Algae contain chlorophyll and produce their own food through photosynthesis. Also they reproduce asexually, meaning that if an alga is cut in two each half wilt develop into a whole new organism.
2. Caulerpa taxifolia’s native habitats are the tropical waters of the Caribbean, south Pacific, east Atlantic, and Indian Ocean. However, in the 1970s, a new strain was bred in Europe to decorate exhibits in saltwater aquariums. The strain proved useful for this purpose, for it was able to g
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[单项选择]
{$mediaurl}Why does the professor mention growth rings in trees
A. To compare natural pearl development to something the students are familiar with.
B. To show the contrast between growth rings in pearls and those in living organisms.
C. To highlight a process that occurs more frequently in cultured pearls than natural pearls.
D. To explain why it is easy for scientists to determine the age of natural pearls.
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[单项选择]TOEFL Reading Passage 2
The Mediterranean’s Killer Algae
1. Today there are many invasive species threatening ecosystems all over the world, but few are of as much concern as Caulerpa taxifolia.This species of green algae grows in long, thin blades similar in appearance to sea grass. Each individual alga is single-celled, with a length of up to a meter, they are some of the largest cells in the world. Algae contain chlorophyll and produce their own food through photosynthesis. Also they reproduce asexually, meaning that if an alga is cut in two each half wilt develop into a whole new organism.
2. Caulerpa taxifolia’s native habitats are the tropical waters of the Caribbean, south Pacific, east Atlantic, and Indian Ocean. However, in the 1970s, a new strain was bred in Europe to decorate exhibits in saltwater aquariums. The strain proved useful for this purpose, for it was able to grow more quickly,
A. the world’s largest algae.
B. the ability to make food on its own.
C. a slender, green appearance.
D. an invader of foreign ecosystems.
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[单项选择]
{$mediaurl}Why does the man go to see his manager
A. To ask if he can wait tables earlier in the day.
B. To request a transfer to the kitchen staff.
C. To quit his job in the school cafeteria.
D. To get permission to join the jazz band.
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[单项选择]
{$mediaurl}What aspect of her course is the woman having trouble with
A. The complexity of the subject matter.
B. The student input required in class.
C. The number of research assignments.
D. The professor’s unusual lecture style.
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[单项选择]
{$mediaurl}What role does nacre play in the formation of pearls
A. It provides the nucleus around which a natural pearl develops.
B. It is a calcium coating that protects the outside of the oyster’s shell.
C. It penetrates the membrane covering the oyster’s soft body.
D. It is the luminous substance that forms the pearl’s outer layers.
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[单项选择]
{$mediaurl}Why does the man say this:
A. To encourage the woman to elaborate on her suggestion,
B. To accept the woman’s proposal.
C. To indicate that the woman is mistaken.
D. To politely express doubt about the woman’s idea,
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[单项选择]
{$mediaurl}What will the woman do during her next art history class
A. Contribute a single comment during the class discussion.
B. Ask her professor for tips on how to participate more.
C. Talk about her favorite Impressionist painters.
D. Voice as many of her opinions as she can.
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[单项选择]
{$mediaurl}Why does the professor mention the censorship policies of Czar Nicholas I1
A. To suggest that theater was a major part of Russian culture in the twentieth century.
B. To establish the context in which Stanislavski developed his ideas about acting.
C. To explain why Stanislavski chose certain actors to study and analyze.
D. To describe the impact that Stanislavski’s career had on Russian culture.
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[单项选择]Film Exchanges in America’s Early Movie Industry
1.Motion pictures were exhibited to the public in the late 1800s, though the first device to accomplish this would seem very unfamiliar to today’s movie-going audiences.Thomas Edison’s 1893 Kinetoscope was little more than a wooden box with a small glass window. Intended only for individual viewing, it housed a roll of film, a mechanical device to circulate the film, and a small light to illuminate it. A person would peer through the window and watch a short moving sequence, usually just a depiction of an everyday event or the performance of an acrobat or dancer. Needless to say, the medium’s ability to serve only one customer at a time severely limited its profitability.
2.Everything changed two years later with the advent of projection, by which a much larger film image could be shown to multiple viewers simultaneously. The Lumière brothers of France were the first to introd
A. device.
B. film.
C. window.
D. sequence.
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[多项选择]Task 2 Directions
Read the question below. You have 30 minutes to plan, write, and revise your essay. Typically, an effective response will contain a minimum of 300 words.
Do you agree or disagree with the following statement
Letting a friend make a mistake is better than saying or doing something that might destroy the friendship,
Use specific reasons and examples to support your answer.
300 WORDS
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[单项选择]
{$mediaurl}What does the man mean when he says this:
A. He is not sure he has heard the woman correctly.
B. He already knows about the woman’s problem.
C. He is uncertain which elective the woman is taking.
D. He is concerned about the woman’s situation.
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[单项选择]
{$mediaurl}What does the professor mean when she says this:
A. She wants the students to speak up if they do not understand.
B. She does not think the concept is relevant to the lecture topic.
C. She does not want to explain the concept in any more detail.
D. She thinks the students have a good understanding of the lecture’s theme.
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[单项选择]
{$mediaurl}Why does the woman say this:
A. To assure the man that she will get a high grade in the class.
B. To emphasize that the format of seminar classes is unfamiliar to her.
C. To suggest that her professor is not giving her enough work.
D. To request help with some of her specific class assignments.
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[单项选择]TOEFL Reading Passage 1
Two Types of Social Groups
1. One of the most basic elements of human life is the way in which we form social groups and interact with the members of those groups. According to sociologists, no one is ever entirely separate from the social networks that surround him or her, and the groups we belong to play an enormous role in determining how we see ourselves and our world. Early American sociologist Charles H. Cooley(1864-1929) defined two principal categories of human groupings, and his ideas are still widely accepted today. He termed them primary and secondary, based on the kinds of relationships individuals in the group share with each other.
2. In primary groups, we form what Cooley referred to as primary relationships. These are marked by strong, long-lasting emotional ties, feelings of intimacy and genuine concern for the well-being of the other person or people. Intan
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[多项选择]
{$mediaurl}What are two key features of rain-shadow deserts mentioned in the discussion Click on 2 answers.
A. They occur mostly in subtropical regions.
B. They lie next to mountain ranges.
C. They receive only a small amount of sun.
D. Their exposure to moist air currents is blocked.
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[简答题]
{$mediaurl}In the talk, the professor provides several examples of deserts from around the world. Indicate which geographical or climatic feature formed these deserts. One of the answer choices will NOT be used. Click in the correct box for each phrase.