备考托福tpo39听力题目原文及答案解析，一起来分析一下吧!
ConverSATion 1
QUESTIONS
1. What is the converSATion mainly about?
A)Directions on how to fill out a form
B)An idea for a fund-raising event
C)Travel plans for an upcoming student trip
D)University procedures for holding fund-raising activities
2. Why does the woman mention a supplemental form?
A)To assure the man that she will approve his proposal quickly
B)To remind the man of a document he recently submitted
C)To clarify for the man what he needs to do
D)To inform the man of a change to a university policy
3. Why does the man mention the drama club?
A)To explain how he got his acting experience
B)To identify who will perform in the dinner theater show
C)To explain who wrote the script that his club wants to perform
D)To explain where some funding for the trip will come from
4. What does the man say about audience members who will attend the dinner theater show?
A)They will ask the performers questions.
B)They will go on the trip to Washington, D.C.
C)They will receive a discount if they purchase tickets in advance.
D)They will work together to solve a mystery.
5. What concerns does the woman express about the man’s idea?
Choose 2 answers.
A)There is not enough time for the actors to learn their parts.
B)It might be difficult to find a place to hold the event.
C)This type of event has not been successful in the past.
D)There will be costs associated with advertising the event.
Lecture 1(botany)
QUESTIONS
1. What is the lecture mainly about?
A.A research study that compares wild and domesticated plants
B.Problems with a commonly held hypothesis about the origin of teosinte
C.Reasons why wild plants are usually unsuitable for agriculture
D.The process used to identify the ancestor of a modern crop
2. What evidence seemed to indicate that maize and teosinte are not related?
A.Young teosinte plants do not physically resemble young maize plants.
B.Preliminary DNA evidence indicated that teosinte was related to rice.
C.Maize and teosinte usually grow in significantly different climates.
D.Maize and teosinte have very different types of kernels.
3. Why does the professor discuss hybrids?
A.To explain how a geneticist confirmed that maize was widely grown 9,000 years ago
B.To indicate the earliest method used by geneticists to identify plant origins
C.To explain a method used to demonstrate a link between two plant species
D.To describe how geneticists distinguish between wild plants and domesticated plants
4.What was most researchers’ initial view of George Beadle’s theory about teosinte?
A.They accepted it but questioned the evidence cited.
B.They rejected it because of conflicting archaeological evidence.
C.They questioned it because it implies that ancient farmers were sophisticated plant breeders.
D.They questioned it because genetic research was viewed with skepticism at that time.
本文的内容就是小编介绍的托福tpo39听力题目原文及答案解析。
5.What did Beadle conclude about maize and teosinte?
A.Both plants lack particular genes that are common in most domesticated plants.
B.Both plants have particular genes that enable them to adapt to varying climates.
C.Only a small number of genes are responsible for the differences between the two plants.
D.The genetic composition of both plants is very similar to that of rice.
6. According to the professor, why was the discovery of a set of tools important?
A.It proved that teosinte was simultaneously domesticated in multiple locations.
B.It helped to confirm the period in which maize was first domesticated.
C.It suggested that maize required farming techniques that were more complex than experts had previously assumed.
D.It provided evidence that maize plants were used for more purposes than experts had previously assumed.
Lecture 2 (biology)
QUESTIONS
1.What is the main topic of the lecture?
A.A reconsideration of a way predators can evolve
B.New evidence about predators tricking their prey
C.Differences between mimicry and camouflage
D.Uses of mimicry in predator-prey relationships
2.Why does the professor mention flies?
A.To explain an unusual case of Batesian mimicry
B.To give an example of a harmless species mimicking a dangerous one
C.To share the findings of a research study on camouflaging
D.To explain why many types of insects prefer to live near bees
3.What makes the type of octopus discovered off the coast of Indonesia particularly interesting to scientists?
A.It is extremely poisonous to other animals.
B.It can change both color and texture to blend in with its environment.
C.It can imitate different animals in different situations.
D.It tricks prey into thinking it is a harmless type of snake.
4.What does the professor say about vocal mimicry?
Choose 2 answers.
A.It is a behavior that is not uncommon in nature.
B.Marine organisms have never been observed using it.
C.It is a behavior that is genetically determined rather than learned.
D.Using it to attract prey instead of to scare predators is unusual.
5.The professor discusses researchers' observations of a margay mimicking a tamarin. What does she indicate about those observations?
A.The researchers scared away the tamarins before the margay could attack.
B.The observations were not carried out in a scientific manner.
C.The observations did not provide conclusive evidence that margays' mimicry is effective.
D.The researchers established that baby tamarins respond to margay calls.
6.What does the professor say about jaguars and cougars using vocal mimicry?
A.Scientific observation must be carried out to verify this behavior.
B.People living in the Amazon provide conclusive evidence for this behavior.
C.This behavior must be an innate trait in jaguars and cougars.
D.It is unlikely that jaguars and cougars exhibit this behavior.
ConverSATion 2
QUESTIONS
1. Why does the woman go to see the professor?
A.To ask his opinion regarding a debate about the origins of the Berber people
B.To get feedback on a paper that she recently submitted
C.To propose an alternative topic for a paper she is working on
D.To clarify a point that the professor made in class
2. According to the woman, what error did she make in writing her original paper?
A.She did not follow the advice of the professor's graduate assistant.
B.She forgot to include information about the ancient Romans and Egyptians in the paper.
C.She began writing the paper before completing all the necessary research.
D.She did not provide citations for all the sources she used to write the paper.
3.How does the professor respond when the woman tells him that she wrote a new proposal?
A.He suggests that the woman's original proposal was stronger than the new proposal.
B.He indicates that he could have helped the woman find suitable material for her original proposal.
C.He expresses disappointment that he did not have an opportunity to suggest a new topic for the woman.
D.He suggests possible sources of information about the woman's new topic.
4. What topic is covered in the woman’s new proposal?
A.The difference between civilizations that have writing and those that do not
B.The ways in which international organizations interact with contemporary African governments
C.The role of education in premodern Berber societies
D.The ways in which children in some modern-day nomadic communities are educated
5. What is the professor's opinion of the woman’s new topic?
A.It is preferable to her original topic.
B.It meets the assignment's requirements.
C.It is too broad to be covered adequately.
D.It is not relevant to current events.
Lecture 3(Earth Science)
QUESTIONS
1. Why does the professor compare isotopes to fingerprints?
A.To provide support for an argument
B.To clarify a difficult concept
C.To identify a problem with the research study
D.To suggest a way to test a theory
2.What point does the professor emphasize about the region examined in the study he describes?
A.Its steep mountainous position exaggerates the effects of water flow there.
B.Its dry climate limits how much information it can yield about water movement.
C.Its rainfall patterns and soil conditions are not typical of conditions in all regions.
D.Its soil absorbs water at a much greater rate than soil in a more temperate climate.
3. What did the researchers discover about small soil pores?
A.Small pores make the movement of water through soil difficult to trace.
B.The number of small pores in the soil of a specific area is related to the number of hydrogen isotopes there.
C.Trees receive less water from small pores than from large pores.
D.Small pores retain water longer than previously thought.
4.In the soil examined by the researchers, what happens to rainwater that falls toward the end of the rainy season?
A.Most of it moves through the soil to nearby streams.
B.Most of it is absorbed by trees.
C.It is more likely to pick up pollutants underground.
D.Researchers have been unable to track its entire path.
5. What is the professor’s opinion about the research findings?
A.The findings provided valuable insights for a research study he conducted.
B.The findings support a different conclusion than the one the researchers have drawn.
C.The findings will have an impact on other fields of research.
D.The findings are not conclusive because the movement of pollutants was not tracked.
6. What is the main purpose of the lecture?
A.To point out the flaws in a newly proposed theory
B.To describe a new understanding of a basic process in soil hydrology
C.To address concerns about using stable isotope analysis
D.To provide an explanation of a study described in the class's textbook
Lecture 4 (psychology)
QUESTIONS
1.What is the lecture mainly about?
A)New recording technology used to study infant cries
B)Research that has shed light on when humans begin to learn
C)The discovery that infants are capable of producing different vowel sounds
D)Evidence that supports a traditional theory of language learning
2.Why does the professor mention sitting in a dorm room and hearing noises from down the hall?
A.To show how random sounds interfere with speech production
B.To illustrate how researchers are able to work with limited data
C.To explain how infants’ cries are often perceived
D.To describe how a fetus hears speech through its mother’s abdominal wall
3.What points does the professor make about prosody?
Choose 2 answers
A)Voices of different speakers can be distinguished based on their prosodic features.
B)Mothers tend to mimic the prosody of their infants.
C)Infants learn prosody after they have learned vowel sounds.
D)Different languages have different prosodic features.
4.What does the professor say about the three-month-old infants?
A)They have the ability to imitate vowel sounds.
B)They can distinguish between vowels and consonants.
C)They tend to cry with falling intonation.
D)They tend to cry if they do not recognize a speaker’s voice.
5.According to the professor, what did researchers conclude after analyzing the recordings of crying newborns?
A.The amount of air in the lungs determines the pitch of a newborn’s cry.
B.Most newborns cry with rising intonation.
C.A newborn can control the pitch and volume of its cries.
D.The loudness of a newborn’s cry is related to whether or not the mother can hear it.
6.The professor mentions the possibility that infants in the crying study learned the prosodic features of their native language after they were born. What is her view of this idea?
A.It explains the behavior of only one group of infants in the study.
B.It is not a likely explanation of the findings reported in the study.
C.It has been completely ruled out by the findings of a more recent study.
D.It is the hypothesis that is currently best supported by evidence.
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