2023年1月2日发(作者：蝙蝠的拼音)福
POminilectures
1 What is the talk mainly about? A Symbolism in African rock art B Differences between European and African rock art C Conrvation of African rock art D New discoveries of African rock art 2 According to the professor, what are two main caus of damage to African rock art? Click on 2 answers A Pollution B The weather C Animals D Tourists 3 Why do the professor mention the Getty Institute A It is helping to photograph the art B It is displaying samples of the art the school C One of its members discovered the paintings in the Sahara D One of its members found a way to determine the age of African paintings 4 How do the African rock paintings differ from European rock paintings? A The African paintings more frequently depict people B The African paintings are more abstract C The African paintings do not depict animals D The African paintings are less colorful 5 According to the professor, what was unusual about the paint ud by some African rock artists? A Animal blood was one of its ingredients B It was a mixture of charcoal and water C It reflected light D The sun and rain did not fade its color 6 What was learned about the Sahara from African rock art? A It was much larger than its prent size. B Its people migrated to southern Europe. C It once had plenty of rainfall. D It was once parate from the African continent. 7 What is purpo of the talk? A To show the effect of poetry on society. B To point out stylistic similarities of two poets. C To compare the social structure of the United States before and after the Civil War. D To introduce the poetry of a particular period. 8 What does professor say about fiction during the period immediately after the Civil War? A It changed more than any other type of literature. B It usually dealt with war-related themes. C It was unpopular with the general reader D It lacked the innovations found in other forms of literature.
9 According to professor, what two subjects would most likely be the source of inspiration for a poem by Emily Dickinson? Click on 2 answers A Children falling asleep. B The political life of a United States president. C The events of a Civil War battle. D A flower garden. 10 According to the professor, what aspect of Emily Dickinson’s poetry was innovative? A The unusual rhyme scheme. B The combining of profound ideas with familiar images. C The complex vocabulary. D The length of the vers in her later poetry. 11 What does the professor say makes Walt Whitman’s poetry particularly notable? A It had a strong impact on Emily Dickinson’s work. B Its messages were rejected by readers. C It abandoned many literary traditions D It mainly dealt with ordinary experiences. 12 What does the professor say may have led Walt Whitman to become a poet? A His love of nature. B His experiences in the Civil War.. C His failure at public speaking. D His rejection of
ards. D The u of trails by white-tailed deer. 50 Why are the trails of the white-tailed deer important for their food supply? Click on 2 answers. A The deer follow the trails to eat in areas outside the home range. B The deer eat plants growing alongside the trails. C The deer u the trails to travel to their feeding grounds. D The deer build trails around their yards to protect their food supply. 51 What is the primary function of runways? A To connect the larger trails in the home range to each other. B To allow deer to move easily to new yards. C To provide a direct route to the deer yard. D To permit veral deer to move together along a path.
52 What happens to the trail system when food becomes scarce in winter? A It is damaged from overu. B It is expanded. C It is joined with another herd’s trails. D It is abandoned. 53 According to the professor, why do the deer need to know the entire network of trails? Click on 2 answers A To enable them to find their yards in bad weather B To help them guard the boundaries of the home range from other deer C To allow them to escape when pursued. D To assist them in detecting predators in their territory. 54 According to the professor, why is deep snow dangerous for white-tailed deer? A The deer are unable to move quickly through the snow. B Predators can easily conceal themlves in the snow. C The hooves of the deer become brittle in the cold snow. D The deer cannot e the trail underneath the snow. 55 What is the purpo of the talk? A To explain some factors contributing to the perception of color. B To describe the dangerous effects of sunlight. C To describe the wave patterns of ocean currents.
D To argue against a popular theory of the behavior of light. 56 According to the professor, what must be true of a light wave in order for the human eye to e it? A It must be longer than the wavelength en as the color red. B It cannot be reflected by objects in its path. C It must be partially absorbed by the molecules surrounding it. D It must fall within a certain range of wavelengths. 57 Look at the diagram of the visible spectrum. What does the professor imply is true of the wavelength that is en as the color orange? A It is longer than the wavelength en as blue. B It is not a component of white light. C Its value is the same as the wavelength en as red. D It generally does not strike obstacles in the air. 58 What does the professor try to explain by discussing ocean waves? A How piers are weakened by wave action. B How prisms function. C What happens to light waves in Earth’s atmosphere. D Why it is difficult to predict patterns in ocean currents. 59 To what does the professor compare the iron columns of piers? A A line of soldiers. B Obstacles in the atmosphere. C Electromagnetic waves. C A prism. 60 What does the apparent color of an object depend on? A The texture of the object
B The wavelength of light than reflects off of the object. C The temperature of the air that surrounds the object. D The weight of the object.
61 What is the talk mainly about? A The cycle of water in the environment. B The creation of the Grand Canyon. C The stages in a stream’s development. D The effect of erosion on streams. 62 According to the professor, what’s is a graded stream? A A stream than does not wear down or build up is channel. B A stream than meanders from side to side. C A stream with flood plain. D A stream than deposits soil in its channel. 63 What are the characteristics of a young stream? Click on 2 answers A It deposits material in the channel bottom. B It follows a straight path. C It does not have rapids or falls. D It creates s V-shaped valley. 64 Why is misleading to say than streams age like people? Click on 2 answers
A It is hard to estimate when a stream first flows. B Steams can flow for many years but remain youthful. C Streams can return to youth from maturity. D It is difficult to identify a stream’s stage of development. 65 Why does the professor mention the Colorado River? A To show than an ancient river can have youthful qualities B To demonstrate the process of canyon formation. C To give an example of a river cutting through soft material. C To illustrate the characteristics of a river in old age. 66 How does a stream become rejuvenated? A Its starts to meander. B Its valley becomes wider. C Its channel becomes deeper. D Its elevation ris. 67 What does the professor mainly discuss? A The need to build rervoirs. B The melting of ice at the North Pole. C Why planets rotate at a constant rate. D How human activity may affect the whole Earth.
68 What does the professor say about ocean currents? A They cau air pressure patterns to vary. B They may be ud someday to generate electricity. C They influence the Earth’s rotation. D They are breaking up the polar ice sheets. 69 70 Why does the professor compare the spinning Earth to an ice-skater? A To illustrate the most efficient u of energy. B To show the effect of shifting mass toward the axis. C To demonstrate how wind resistance affects rotation. D To explain the relation between science and art. 71 What does the professor imply might be one effect of building more large rervoirs? A The Earth would rotate faster. B The atmosphere would warm less rapidly. C Floods would occur more frequently. D The level of the oceans would ri. 72 What does the professor say about the length of a day? A It is a constant on which many other measurements are bad. B It has incread very slightly over the last forty years. C It may be affected by the size and location of rervoirs. D It ems to have incread greatly due to electric power.
73What is the discussion mainly about? A Different kinds of pianos. B The history of th
e harpsichord and the piano. C The mechanics of two keyboard instruments. D Music written for different keyboard instruments. 74 Why does the class meet in a studio? A To make a recording. B To e the instruments in the studio C To attend a concert D Becau their classroom is not available . 75 What three features are common to both the piano and the harpsichord? Click on 3 answers A Hammers B Strings C Keys D Plectrums E A frame 76 What does the professor say about the strings inside a piano? A They are arranged according to length. B They produce higher tones than the strings inside a harpsichord. C They all have the same thickness. D They are held in place by a piece of leather . 77 What will the students most likely do next? A Play a piece on the piano B Watch how a sound is produced on a harpsichord C Take a quiz about keyboard instruments D Compo a piece for a keyboard instrument
78 What is the discussion mainly about? A Variations in children’s writing ability B Children’s knowledge of written language C Classroom techniques for teaching children how to read C Differences between spoken and written language forms 79 According to the discussion, what is the relationship between written and spoken language? A Written language is a way of reprenting spoken language B Written language develops independently of spoken language C Written language is more preci than spoken language C Written language requires a broader vocabulary than spoken language 80
81 According to the discussion, which activity can help young children learn what written symbols reprent? A Reciting the letters of the alphabet B Looking at many words in print C Attending school at an early age C Practicing forming letters on a page 82 What is “metalinguistic awareness”? A The knowledge of a number of different languages B An awareness of different approaches to language teaching C The ability to communicate using language D An awareness of how language functions
83 What is the discussion mainly about? A Pesticides ud by fruit farmers B The function of one type of chemical in fruit C The types of fruit people should avoid C How birds digest poisonous fruit 84 What method of spreading eds does the class discuss? A Seeds are blown by the wind B Seeds stick to animal fur C Seeds are collected by farmers and planted as crops C Seeds are eaten by animals and deposited in the soil 85 What two benefits of glycoalkaloids does the professor mention? Click on 2 answers A They discourage animals from eating tomatoes before they ripen B They improve the taste of nightshade berries C They inhibit the growth of fungi on fruit D They give fruit an attractive color 86 What does the professor say about the taste of certain fruits than contain glycoalkaloids? A The fruits can taste bitter to people
B The fruits taste sweet to most birds C The fruits
are so distasteful that no animals eat then D The fruits have naturally evolved to have a milder flavor 87 What reason does the professor mention tor tomatoes going bad at the grocery store? A They are kept too cold B They contain too many glycoalkaloids C They are covered with a thick layer of wax D They do not have enough resistance to fungi
88 What is the discussion mainly about? A A different type of cloud formation B A type of ed that needs little water C An effort to reduce the amount of acid rain D A technique for increasing the quantity of rain 89 According to the discussion, what is the main consideration when choosing a eding agent? A The direction of the wind B The temperature of the cloud C The size of the cloud D The types of chemicals in the cloud 90 What are super cooled clouds? A Clouds that produce ice storms B Clouds that have been treated with dry ice C Clouds that are below freezing in temperature D Clouds that have moved from a hot a cold location 91 What happens when dry ice or silver iodide is added to a cloud? A The water in the cloud turns into snow B The cloud becomes larger C The cloud releas raindrops
D The water in the cloud becomes warmer 92 What is preventing the large-scale u of cloud eding? Click on 2 answers A A shortage of eding agents B A lack of knowledge about the effect of cloud eding on surrounding areas C A lack of laws that regulate cloud eding D A shortage of pilots trained in cloud eding
