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A few birds care for their eggs without sitting on them． In Australia, the male mallee fowl builds an incubator nest out of rotting vegetation covered with soil． As the vegetation decays, it gives off heat． The male pokes his beak into the middle of the pile and tests the temperature． If the temperature isn't an even 92° Fahrenheit, he adjusts it by adding or removing soil．
The female spends most of her time watching him, but sometimes she helps him． About once a week she lays another egg inside the nest．
The pair maintain their nest for several months． When the chicks begin to hatch -- one by one -- they dig their own way out of the nest and dash into the bush to fend for themselves． Although mallee fowl take great care of their eggs, no mallee fowl has ever been seen with a brood of chicks．
1．Most birds' eggs are hatched by heat from_______．
A．the sun's raysB．incubators
C．their parents' bodies D．None of the above
2．The heat in a mallee fowl nest comes from the_______．
A．beak of the male B．vegetation decaying under the soil
C．rays of the sun D．body of the female
3．Temperature adjustments within the nest are made by_______．
A．adding more soil B． removing soil C． Either A or B D． Neither A nor B
4．The article does not tell_______．
A．how the male removes soil from the nest B．why the female seldom helps the male
C．why the nest must be a certain temperature D．Any of the above
5．Mallee fowl eggs hatch_______．
A．all together B． individually
C．in twos or threes D． in small clutches
6．When a chick hatches, it______．
A．must dig its way out of the nest B．can fend for itself
C．needs assistance from its parents D．Both A and B
7．A brood of mallee chicks is never seen because the female lays only one egg every_______．
A． dayB． weekC． fortnightD． month
8．Because of the way mallee fowl care for their eggs, the_______．
A．adults cannot live in the nest themselves B． adults do not need to work hard
C．female is kept very busy D． male has no work to do
查看习题详情和答案>>Maggie was very glad that James was not a frequent visitor to the house. So far as the children were concerned, they had a mystery about him that stirred their imagination. He stirred Maggie’s anger, however, so that she often said to her husband, “It’s mercy that brother of yours doesn’t come oftener.”
In fact James came once a year, unexpectedly, around eight o’clock in the evening, and he stayed for six hours of close discussion with his brother. His arrival was a signal to the children that their bedtime would be delayed. Not that he ever spoke to them or played with them. He took no notice of them, as if he was unable to see children, at least until the time came for him to go. Instead, after his first greeting and a careless kiss, James took no notice of Maggie either, except to add, “You’ll be getting on with the supper, Maggie.” Such was his regard for her.
Maggie paid him back in her own way. She kept the children up, the four of them, to keep her company, she said, but of course they sang and made a noise and broke the endless sound of James’s voice. Very late, they dropped off to sleep in their chairs. Then, when James was about to go, Maggie woke them up and so more or less forced him to part with four shillings before he left. That gave her some satisfaction, for James, though rich, was mean. He always went home by the last train, just after two o’clock.
Maggie’s children secretly stared at their uncle. They could not forget that he had, in their mother’s words, “lost two wives and taken a third, ” They wondered about those two unfortunate lost ladies. They asked each other what their fate had been, and if neither could ever be found again. James never brought his third wife with him nor ever mentioned her. The children decided that he must be so frightened of losing her that he never allowed her outside the door.
11. The underlined word “mercy” in the text most probably means _______.
A. loss B. wonder C. lucky thing D. terrible thing
12. Maggie never prepared anything special for James because _______.
A. he was a man difficult to please
B. she never knew when he was coming
C. she was too busy looking after her children
D. he never stayed long enough for a meal
13. What do we know about James’ behavior?
A. He was a kind man, with love for the family.
B. He was generous, especially towards his brother.
C. He was anxious to please the family, especially the kids.
D. He was rude to his sister-in-law.
14. Maggie felt pleased when _______.
A. she paid James the money that she owed him
B. James gave some money to the children
C. she had to wake James up to catch his train
D. James thanked her for the nice supper
15. The children did not realize that two of James’ wives _______.
A. had been dead B. suffered from loss of memory
C. had run away from him D. might appear again one day
查看习题详情和答案>>.Among all the problems,_______is so difficult as this one.
A.not one B.either C.neither D.none
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