托福阅读真题练习：蜕皮的文本+题目+答案

托福阅读如何进行备考?除了大量的托福词汇储备以外，大家可能最需要的就是托福阅读真题的练习。那么除了TPO你还有哪些托福阅读真题进行练习呢?今天小编就为大家整理了托福阅读真题100篇：蜕皮的文本、题目以及答案，希望可以帮助到大家。

  托福阅读文本：  

  Molting is one of the most involved processes of a bird's annual life cycle.   Notwithstanding

  preening and constant care, the marvelously intricate structure of a bird's   feather inevitably wears

  out. All adult birds molt their feathers at least once a year, and upon close   observation, one can

  recognize the frayed, ragged appearance of feathers that are nearing the end   of their useful life.

  Two distinct processes are involved in molting. The first step is when the   old, worn feather is

  dropped, or shed. The second is when a new feather grows in its place. When   each feather has

  been shed and replaced, then the molt can be said to be complete. This,   however, is an abstraction

  that often does not happen: incomplete, overlapping, and arrested molts are   quite common.

  Molt requires that a bird find and process enough protein to rebuild   approximately one-third of

  its body weight. It is not surprising that a bird in heavy molt often seems   listless and unwell. But

  far from being random, molt is controlled by strong evolutionary forces that   have established an

  optimal time and duration. Generally, molt occurs at the time of least stress   on the bird. Many

  songbirds, for instance, molt in late summer, when the hard work of breeding   is done but the

  weather is still warm and food still plentiful. This is why the woods in late   summer often seem so

  quiet, when compared with the exuberant choruses of spring.

  Molt of the flight feathers is the most highly organized part of the process.   Some species, for

  example, begin by dropping the outermost primary feathers on each side (to   retain balance in the

  air) and wait until the replacement feathers are about one-third grown before   shedding the next

  outermost, and so on. Others always start with the innermost primary feathers   and work outward.

  Yet other species begin in the middle and work outward on both sides. Most   ducks shed their wing

  feathers at once, and remain flightless for two or three weeks while the   replacement feathers grow.

  托福阅读题目：  

  1. The passage mainly discusses how

  (A) birds prepare for breeding

  (B) bird feathers differ from species

  (C) birds shed and replace their feathers

  (D) birds are affected by seasonal changes

  2. The word "Notwithstanding" in line 2 is closest in meaning to

  (A) despite

  (B) because of

  (C) instead of

  (D) regarding

  3. The word "intricate" in line 2 is closest in meaning to

  (A) regular

  (B) complex

  (C) interesting

  (D) important

  4. The word "random" in line 12 is closest in meaning to

  (A) unfortunate

  (B) unusual

  (C) unobservable

  (D) unpredictable

  5. The word "optimal" in line 13 is closest in meaning to

  (A) slow

  (B) frequent

  (C) best

  (D) early

  6. Which of the following is NOT mentioned as a reason that songbirds molt in   the late summer?

  (A) Fewer predators are in the woods.

  (B) The weathers are still warm.

  (C) The songbirds have finished breeding.

  (D) Food is still available.

  7. Some birds that are molting maintain balance during flight by

  (A) constantly preening and caring for their remaining feathers

  (B) dropping flight feathers on both sides at the same time

  (C) adjusting the angle of their flight to compensate for lost feathers

  (D) only losing one-third of their feathers

  8. The word "Others" in line 21 refers to

  (A) ducks

  (B) sides

  (C) species

  (D) flight feathers

  9. The author discusses ducks in order to provide an example of birds that

  (A) grow replacement feathers that are very long

  (B) shed all their wing feathers at one time

  (C) keep their innermost feathers

  (D) shed their outermost feathers first

  10. It can be inferred from the discussion about ducks that the molting of their flight feathers takes

  (A) a year

  (B) a season

  (C) several months

  (D) a few weeks

  托福阅读答案：  

  CABDCABCBD

  以上就是小编为大家整理的托福阅读100篇真题练习：蜕皮的文本、题目以及答案，大家在托福阅读考试进行备考的过程当中也可以拿这些题目来进行练习，相信对于你的托福阅读考试成绩提升会很有帮助。最后，小编预祝大家托福考试能取得理想的成绩。