题库首页 > 试卷库
试题详情及答案解析
Animal moms are great moms. You might be surprised at some of these moms.
Octopuses
The octopus mother lays about 50,000 eggs. For about 300 days, she stays with the eggs, cleans them and protects them. She does not leave to feed. However, this animal mom dies as soon as the eggs are hatched.
Crocodiles
A crocodile mother puts a lot of time and effort into raising her babies. She starts by building a nest(巢), which she guards for over two months! When the eggs are ready to hatch, the young crocs call out to their mother, who digs them out and helps them hatch. She then carries them in her mouth down to the water, where she will guard them for several weeks or months until they learn to hunt on their own.
Bats
Bats become moms by hanging head up in a cave, giving birth. Catching the youngster before it can fall to the ground below, she puts it in a pouch. Bat moms may carry babies with them when feeding for the first few days. As the little bats get bigger and heavier, moms help them hang on the wall of their caves and return often to feed them. It continues for about three weeks, until the babies are grown up and able to fly on their own.
Koalas
This animal mom gives birth after a pregnancy(怀孕期) of only 35 days. The hairless baby climbs into its mother's pouch and lives there for another five months. When the little koala is between five and eight months old, it leaves the pouch for short periods of time but returns for safety. Once it is too big to return to the pouch, it will climb onto its mother's back and ride there until it is about 12 months old.
【小题1】The passage is probably taken from _________.
A.a movieB.a conference
C.a science magazineD.a speech
【小题2】Which animal moms dies when their babies are born?
A.Octopus.B.Crocodile.
C.Bat.D.Koala.
【小题3】A crocodile mother usually carries her babies to the water ______.
A.in her mouthB.on her back
C.in her pouchD.by her tail
【小题4】A bat mom ______.
A.gives birth by lying in the nest
B.gives birth by hanging in a cave
C.leaves its babies in the pouch for months
D.lets its babies live on their own after birth
【小题5】How long does a young koala usually stay in its mother's pouch at least?
A.35 days.B.5 months.
C.8 months.D.12 months.
答案:【小题1】C
【小题2】A
【小题3】A
【小题4】B
【小题5】B
试题分析:动物妈妈也是了不起的,你可能会对一些动物妈妈的行为感到惊讶和敬佩。章鱼妈妈产五万颗蛋,并花大约300天的时间孵化它们。当小章鱼出生的时候,章鱼妈妈就会死掉。
【小题1】文章出处题。根据文章大意可知,文章主要介绍了章鱼、鳄鱼、蝙蝠和树袋熊等动物中的雌性动物抚养幼崽的知识,文章中的数据和知识是通过科学研究得出的,故选C。
【小题2】细节理解题。根据“However, this animal mom dies as soon as the eggs are hatched.”可知,当小章鱼孵化出生时,章鱼妈妈就会死掉,故选A。
【小题3】细节理解题。根据“She then carries them in her mouth down to the water”可知,鳄鱼妈妈把小鳄鱼含在嘴里潜到水下,故选A。
【小题4】细节理解题。根据“Bats become moms by hanging head up in a cave, giving birth.”可知,蝙蝠生幼崽时把自己悬挂在洞穴中,故选B。
【小题5】细节理解题。根据“and lives there for another five months. When the little koala is between five and eight months old”可知,小树袋熊要在妈妈的育儿袋里待至少五个月,在5-8个月的时候,小树袋熊能够短时间地离开育儿袋,故选B。
考点:科学类短文阅读