What aspect of broad-tailed hummingbird behavior does the passage mainly discuss?

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

Broad-tailed hummingbirds often nest in quaking, slender deciduous trees with smooth gray-green bark found in the Colorado Rockies of the Western United States. After flying some 2,000 kilometers north from where they have wintered in Mexico, the hummingbirds need six weeks to build a nest, incubate their eggs, and raise the chicks. A second nest is feasible only if the first fails early in the season. Quality, not quantity, is what counts in hummingbird reproduction.
A nest on the lowest intact branch of an aspen will give a hummingbird a good view, a clear flight patch, and protection for her young. Male hummingbirds claim feeding territories in open meadows where, from late May through June, they mate with females comiing to feed but take no part in nesting. Thus when the hen is away to feed, the nest is unguarded. While the smooth bark of the aspen trunk generally offers a poor grip for the claws of a hungry squirrel or weasel, aerial attacks, from a hawk, owl, or gray jay, are more likely.
The choice of where to build a nest is based not only on the branch itself but also on what hangs over it. A crooked deformity in the nest branch, a second,  unusually close branch overhead, or proximity to part of a trunk bowed by a past ice storm are features that provide shelter and make for an attractive nest site. Scarcely larger than a halved golf ball, the nest is painstaking constructed of spider webs and plant down, decorated and camouflaged outside with paper-like bits of aspen bark held together with more strands of spider silk. By early June it will hold two pea-sized eggs, which each weigh one-seventh of the mother’s weight, and in sixteen to nineteen days, two chicks.

What aspect of broad-tailed hummingbird behavior does the passage mainly discuss?

• A. Mating habits
• B. Selection of nest sites
• C. Caring for the young
• D. Migration routes

• Câu 2: Mã câu hỏi: 8155

  According to the passage, in what circumstances do hummingbirds build a second nest?

  • A. If there is an unusually large supply of food
  • B. If the eggs are destroyed early in the season.
  • C. If the winner is unusually warm
  • D. If the chicks in the first nest hatch early

• Câu 3: Mã câu hỏi: 8161

  The word "counts" in the first paragraph is closest in meaning to _________. 

  • A. numbers
  • B. estimates
  • C. weighs
  • D. matters

• Câu 4: Mã câu hỏi: 8168

  According to the passage, which of the following is true of the male broad-tailed hummingbird?

  • A. It protects the nest while the female searches for food.
  • B. It is not involved in caring for the chicks.
  • C. It shares nesting duties equally with the female. 
  • D. It finds food for the female and the chicks.

• Câu 5: Mã câu hỏi: 8182

  It can be inferred from the passage that the broad-tailed hummingbirds’ eggs and chicks are most vulnerable to attack by________ .

• Câu 6: Mã câu hỏi: 8190

  Which of the following would be a good location for a broad-tailed hummingbird to build its nest?

  • A. A thick branch
  • B. The longest branch of a tree
  • C. A branch near the top of a tree
  • D. A protected branch

• Câu 7: Mã câu hỏi: 8199

  The word "Scarcely" in the third paragraph is closest in meaning to__________ .

  • A. obviously
  • B. barely
  • C. consistently
  • D. needlessly

• Câu 8: Mã câu hỏi: 8203

  Which of the following was NOT mentioned in the passage as a nest-building material of the broad- tailed hummingbird?

  • A. Plant down
  • B. Paper
  • C. Spider webs
  • D. Tree bark

• Câu 9: Mã câu hỏi: 8206

  The author compares the size of the broad-tailed hummingbird’s nest to ________ .

  • A. a golf ball
  • B. a spider web
  • C. an egg
  • D. a pea

• Câu 10: Mã câu hỏi: 8208

  According to the passage, how long does it take for broad-tailed hummingbird egg to hatch?

  • A. More than six weeks
  • B. Two to three weeks
  • C. One month
  • D. Less than a week