TOEFL全真试题

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TOEFL全真试题1

Reading Comprehension　　Time: 55 minutes (including the reading of the directions). Now set your clock for 55 minutes.　　Question 1-12　　Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds of thousands, and in some　　cases millions, of seeds, so microscopic and light they are easily carried by the breeze. Surrounding the column are three sepals and three petals, sometimes easily recognizable as such, often distorted into gorgeous, weird, but always functional shapes. The most noticeable of the　　petals is called the labellum, or lip. It is often dramatically marked as an unmistakable landing　　strip to attract the specific insect the orchid has chosen as its pollinator.　　To lure their pollinators from afar, orchids use appropriately intriguing shapes, colors, and scents. At least 50 different aromatic compounds have been analyzed in the orchid family, each blended to attract one, or at most a few, species of insects or birds. Some orchids even change their scents to interest different insects at different times.　　Once the right insect has been attracted, some orchids present all sorts of one-way obstacle　　courses to make sure it does not leave until pollen has been accurately placed or removed. By such ingenious adaptations to specific pollinators, orchids have avoided the hazards of rampant　　crossbreeding in the wild, assuring the survival of species as discrete identities. At the same time　　they have made themselves irresistible to collectors.　　1. What does the passage mainly discuss?　　(A) Birds　　(B) Insects　　(C) Flowers　　(D) Perfume　　2 The orchid is unique because of　　(A) the habitat in which it lives　　(B) the structure of its blossom　　(C) the variety of products that can be made from it　　(D) the length of its life　　3 The word "fused" in line 2 is closest in meaning to　　(A) combined　　(B) hidden　　(C) fertilized　　(D) produced　　4 How many orchid seeds are typically pollinated at one time?　　(A) 200　　(B) 2,000　　(C) 20,000　　(D) 200,000　　5 Which of the following is a kind of petal?　　(A) The column　　(B) The sepal　　(C) The stem　　(D) The labellum　　6 The labellum(line7) is most comparable to　　(A) a microscope　　(B) an obstacle course　　(C) an airport runway　　(D) a racetrack　　7 The word "lure" in line 10 is closest in meaning to　　(A) attract　　(B) recognize　　(C) follow　　(D) help　　8 Which of the following is NOT mentioned as a means by which an orchid attracts insects?　　(A) Size　　(B) Shape　　(C) Color　　(D) Perfume　　9 The word "their" in line 13 refers to　　(A) orchids　　(B) birds　　(C) insects　　(D) species　　10 Which of the following statements about orchids scents does the passage support?　　(A) They are effective only when an insect is near the blossom.　　(B) Harmful insects are repelled by them.　　(C) They are difficult to tell apart.　　(D) They may change at different times.　　11 The word "placed" in line 15 is closest in meaning to　　(A) estimated　　(B) measured　　(C) deposited　　(D) identified　　12 The word "discrete" in line 18 is closest in meaning to　　(A) complicated　　(B) separate　　(C) inoffensive　　(D) functional

TOEFL全真试题2

Reading Comprehension　　Time: 55 minutes (including the reading of the directions). Now set your clock for 55 minutes.　　Question 1-12　　Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds of thousands, and in some　　cases millions, of seeds, so microscopic and light they are easily carried by the breeze. Surrounding the column are three sepals and three petals, sometimes easily recognizable as such, often distorted into gorgeous, weird, but always functional shapes. The most noticeable of the　　petals is called the labellum, or lip. It is often dramatically marked as an unmistakable landing　　strip to attract the specific insect the orchid has chosen as its pollinator.　　To lure their pollinators from afar, orchids use appropriately intriguing shapes, colors, and scents. At least 50 different aromatic compounds have been analyzed in the orchid family, each blended to attract one, or at most a few, species of insects or birds. Some orchids even change their scents to interest different insects at different times.　　Once the right insect has been attracted, some orchids present all sorts of one-way obstacle　　courses to make sure it does not leave until pollen has been accurately placed or removed. By such ingenious adaptations to specific pollinators, orchids have avoided the hazards of rampant　　crossbreeding in the wild, assuring the survival of species as discrete identities. At the same time　　they have made themselves irresistible to collectors.　　1. What does the passage mainly discuss?　　(A) Birds　　(B) Insects　　(C) Flowers　　(D) Perfume　　2 The orchid is unique because of　　(A) the habitat in which it lives　　(B) the structure of its blossom　　(C) the variety of products that can be made from it　　(D) the length of its life　　3 The word "fused" in line 2 is closest in meaning to　　(A) combined　　(B) hidden　　(C) fertilized　　(D) produced　　4 How many orchid seeds are typically pollinated at one time?　　(A) 200　　(B) 2,000　　(C) 20,000　　(D) 200,000　　5 Which of the following is a kind of petal?　　(A) The column　　(B) The sepal　　(C) The stem　　(D) The labellum　　6 The labellum(line7) is most comparable to　　(A) a microscope　　(B) an obstacle course　　(C) an airport runway　　(D) a racetrack　　7 The word "lure" in line 10 is closest in meaning to　　(A) attract　　(B) recognize　　(C) follow　　(D) help　　8 Which of the following is NOT mentioned as a means by which an orchid attracts insects?　　(A) Size　　(B) Shape　　(C) Color　　(D) Perfume　　9 The word "their" in line 13 refers to　　(A) orchids　　(B) birds　　(C) insects　　(D) species　　10 Which of the following statements about orchids scents does the passage support?　　(A) They are effective only when an insect is near the blossom.　　(B) Harmful insects are repelled by them.　　(C) They are difficult to tell apart.　　(D) They may change at different times.　　11 The word "placed" in line 15 is closest in meaning to　　(A) estimated　　(B) measured　　(C) deposited　　(D) identified　　12 The word "discrete" in line 18 is closest in meaning to　　(A) complicated　　(B) separate　　(C) inoffensive　　(D) functional

TOEFL全真试题3

1. A microscope can reveal vastly ______detail than is visible to the naked eye.

(A) than　　(B) than more　　(C) more than　　(D) more　　2. Narcissus bulbs ______ at least three inches apart and covered with about four inches of well drained soil.　　(A) should be planted　　(B) to plant　　(C) must planting　　(D) should plant　　3. Industrialization has been responsible for ______ most radical of the environmental changes caused by humans.　　(A) a (B) the　　(C) some of which　　(D) which are the　　4. In many areas the slope and topography of the land ______ excess rainfall to run off into a natural outlet.　　(A) neither permit　　(B) without permitting　　(C) nor permitting　　(D) do not permit　　5. Color and light, taken together, ______ the aesthetic impact of the interior of a building.　　(A) very powerfully influence　　(B) very influence powerfully　　(C) powerfully very influence　　(D) influence powerfully very　　6. ______ that Rachel Carson's 1962 book Silent Spring was one of the chief sources of inspiration for the development of nontoxic pesticides.　　(A) There is likely　　(B) Likely to be　　(C) It is likely　　(D) Likely　　7. Total color blindness, ______, is the result of a defect in the retina.　　(A) a rare condition that　　(B) a rare condition　　(C) that a rare condition　　(D) is a rare condition　　8. ______ no conclusive evidence exists, many experts believe that the wheel was invented only once and then diffused to the rest of the world.　　(A) Even　　(B) But　　(C) Although　　(D) So　　9. Wherever there is plenty of rain during the growing season, life is ______ in various forms.　　(A) abundant (　　B) the abundance　　(C) an abundant　　(D) it abundant

TOEFL全真试题4

Structure and Written Expression　　Time: 25 minutes (including the reading of the directions) Now set your clock for 25 minutes.　　Structure　　1 Wind motion can be observed in the mesosphere by ______ the trails of meteors passing through it.　　(A) to watch (B) watching (C) watched (D) watch　　2 Thomas Edison s first patented invention was a device ____in Congress.　　(A) votes counted for (B) had been counting votes (C) for counting votes (D) be a counted vote　　3 Clara Bow, a popular actress in the 1992 s,retired______she was unable to make the transition from silent films to sound films.　　(A) nevertheless (B) in spite of (C) because (D) and for　　4 Built in 1882,the Kinzua Viaduct in Mckean County, Pennsylvania, is open only to those visitors _____ are able to walk its 2058-foot length.　　(A) who (B) to whom (C) which they (D) that which　　5 A bridge must be strong enough to support its own weight _____ the weight of the people and　　vehicles that use it.　　(A) as well (B) so well (C) as well as (D) so well as　　6 The swallows of Capistrano are famous _____ to the same nests in California each spring.　　(A) to returned (B) who returned (C) they returned (D) for returning　　7 In the fourteenth century, ____ that glass coated with silver nitrate would turn yellow when fired in an oven.　　(A) the discovery (B) it was discovered (C) with the discovery (D) if it was discovered　　8 _____ recurring fear is out of proportion to any real danger, it is called a phobia.　　(A) When (B) Whereas (C) Which (D) Whether　　9 Many modem photographers attempt to manipulate elements of photography other _____ in their photographs.　　(A) than light is (B) than light (C) being light (D) light　　10 For any adhesive to make a really strong bond _____ to be glued must be absolutely or grease.　　(A) and surfaces (B) when surfaces (C) the surfaces (D) surfaces that　　11 Although still underwater, Loihi Seamount, the newest Hawaiian island, _____ closer to the　　surface by frequent volcanic eruptions that add layers of lava to the island.　　(A) brought (B) to be brought (C) being brought (D) is being brought　　12 _____unstable and explodes as a supernova is not known.　　(A) For a star to become (B) how a star becomes (C) A star becomes　　(D) That a star is becoming　　13 Not until linoleum was invented in 1860 _____hard-wearing, easy-to-clean flooring.　　(A) any house did have (B) did any house have (C) house had any (D) any house had　　14 Hiram Revels, the first Black member of the United States Senate, served as senator from　　Mississippi, an office _____ he was elected in 1870.　　(A) which (B) to which (C) and which (D) being which　　15 Oceans continually lose by evaporation much of the river water _____.　　(A) to constantly flow into them (B) is constantly flowing into them (C) constantly flows into them (D) constantly flowing into them　　Written Expression　　16 Because of it consists only of a relatively short strand of DNA protected by a shell of protein,　　__________ _____ _____　　A B C　　a virus cannot eat or reproduce by itself.　　______　　D　　17 The oxygen in the air we breathe has no tasted, smell, or color.　　_____ _____ _____ ______　　A B C D　　18 In 1977 Kathleen Battle was hired by the New York metropolitan Opera, where her became__ _______ ___　　A B C　　the star soprano.　　__　　D　　19 The aardvark is a mammal that burrows into the ground to catches ants and termites.　　___ ___ ________ ______　　A B C D　　20 Because of the availability of trucks and easy access to modern highways, the locate of farms____　has become relatively unimportant with respect to their distance from markets._______ ________ ____　　A B C D　　21 The homes created by the legendary architect Frank Lloyd Wright are still viewed as ________ _____uniquely, innovative, and valuable.______ ___　　A B C D　　22 Geologists find it useful to identification fossils in a rock sample because certain assemblages _ ___________________of species are characteristic of specific geologic time periods.__________　　A B C D　　23 Many poets enhance their work by creating a contrast among realism and symbolism in a____ _______ ______ _____　　A B C D　　given poem.　　24 Most countries depend to few extent on cereal imports to augment their own crops.______ ___ _____ ____　　A B C D　　25 The fragrant leaves of the laurel plant to sell commercially as bay leaves and are used for　　___________ ____ __　　A B C　　seasoning foods.　　____　　D　　26 When contented, and occasionally when hunger, cats frequently make a purring sound.　　___ _____ _______ ____　　A B C D　　27 The evolution of fishes is a history of constant adaptation to new possibilities, and a refined of　　______ ______ _ ____　　A B C D　　these adaptations.　　28 In 1991 Antonia Novello, the United States Surgeon General, launched several programs to　　______ _____　　A B　　address particulate problem that young people have.　　______ ______　　C D　　29 Some psychologists believe that those who are encouraged to be independent, responsible, _______ ________　　A B　　and competent in childhood are likely more than others to become motivated to achieve.　　_______ ________　　C D　　30 The central purpose of management is for making every action or decision help achieve a　　________ _ _____　　A B C　　carefully chosen goal.　　______　　D　　31 As a poetry Nikki Giovanni makes effective use of jazz and blues rhythms.　　_____ ______ _ ______　　A B C D　　32 Unlike wood, paper, and fabric, which tendency to disintegrate after being buried for many　　_____ ______ _______　　A B C　　years, ceramics and glassware, although easily broken, survive well in the ground.　　_____　　D　　33 Margaret Mead achieved world famous through her studies of child-rearing, personality, and　　_____ _____ ________　　A B C　　culture.　　_____　　D　　34 The discovery of the antibiotic penicillin in 1928 has not produced antibiotics useful for the　　_______ _____________ ____　　A B C　　treatment of infectious diseases until 1940.　　_______　　D　　35 In the United States, the Cabinet consist of a group of advisers, each of whom is chosen by ____ _______ __________ _____　　A B C D　　the President to head an executive department of the government.　　36 Colleges in the newly formed United States, in recovering from the adverse effects of the　　________ ____　　A B　　American Revolution, inaugurated a broad curriculum in response of social demands.　　_____ ______　　C D　　37 Humus is formed during soil microorganisms decompose animal and plant material into ____ ____________　　A B　　elements usable by plants.　　______ _____　　C D　　38 Ozone is an unstable, faintly bluish gas that is the most chemical active form of oxygen.　　__ ____ ___ ______　　A B C D　　39 The development of professional sports in the United States dates back to nineteenth century.　　_________ _________ ____ __________　　A B C D　　40 Long before his death, John Dewey saw his philosophy have a profound influences on _____ ___ _______　　A B C　　education and thought in the United States and elsewhere.　　___　　D