2014托福考试阅读模拟试题训练16_第2页

　　12. The word "They" in line 2 refers to

　　(A) aviculturists

　　(B)birds

　　(C)eggs

　　(D) rates

　　13. According to paragraph 2, when thetemperature of the sides and bottom of the egg are cooler than the top, then

　　(A) there may be a good chance for　successful incubation

　　(B) the embryo will not develop normally

　　(C) the incubating parent moves the egg to  a new position.

　　(D) the incubation process is slowed down

　　14. According to paragraph 2, sticks, rocks, or dirt are used to

　　(A) soften the bottom of the nest for the newly  hatched chick

　　(B) hold the nest together

　　(C) help lower the temperature at the bottom of　the nest

　　(D) make the nest bigger

　　15. According to paragraph 2, the construction of the nest allows water to

　　(A) provide a beneficial source of humidity  in the nest

　　(B) loosen the materials at the bottom of the　nest

　　(C) keep the nest in a clean condition

　　(D) touch the bottom of the eggs

　　16. All of the following are part of a parrot's　incubation method EXCEPT

　　(A) heating the water vapor as it rises from the　bottom of the nest

　　(B) arranging nesting material at the bottom ofthe nest

　　(C) transferring heat from the parent to the top of the eggshell

　　(D) maintaining a constant temperature on the eggshell

　　17. The word "suspend" in line 19 is closest in meaning to

　　(A) build

　　(B) paint

　　(C)hang

　　(D) move

　　18. The word "fatal" in line 25 is closest in

　　meaning to

　　(A) close

　　(B) deadly

　　(C) natural

　　(D) hot

　　19. The word "secure" in line 27 is closest in

　　meaning to

　　(A) fiesh

　　(B)diy

　　(C)safe

　　(D)warm

　　20. According to paragraph 3, a deep foundation of nesting material provides

　　(A) a constant source of humidity

　　(B) a strong nest box

　　(C) more room for newly hatched chicks

　　(D) protection against cold weather

　　21. Which of the following is a problem with

　　commercial incubators?

　　(A) They lack the natural temperature changes

　　of the outdoors.

　　(B) They are unable to heat the eggs evenly

　　(C) They do not transfer heat to the egg in the

　　same way the parent bird does.

　　(D) They are expensive to operate.

　　22. Which of the following terms is defined in thepassage?

　　(A) Aviculturists (line I)

　　(B) Gradient (line 8)

　　(C) Incubation (line 15)

　　(D) Embryo (line 24)

　　参考答案：

　　DAACA DCBCD CA