高一英语阅读A beaver (海狐) has a large flat tail,which acts as a support when they sit or stand,a rudder (舵) when they swim,and a warning sign to others when danger is coming.Beavers can weigh as much as 60 pounds.The female is normally as

高一英语阅读A beaver (海狐) has a large flat tail,which acts as a support when they sit or stand,a rudder (舵) when they swim,and a warning sign to others when danger is coming.Beavers can weigh as much as 60 pounds.The female is normally as
高一英语阅读
A beaver (海狐) has a large flat tail,which acts as a support when they sit or stand,a rudder (舵) when they swim,and a warning sign to others when danger is coming.Beavers can weigh as much as 60 pounds.The female is normally as large as or larger than the male.They have dark brown fur that is waterproof (防水的).Their eyesight is poor but other senses (hearing,smell and touch) are great.Beavers have large front teeth that stick out from their mouth.They never stop growing so beavers must bite on wood often to keep them short.Their noses have valves that stop water getting in their mouth when they chew on underwater wood.They can stay underwater for about 15 minutes at a time.Beavers only work at night and they are amazing builders.Much of their building material comes from trees.In one night,they can bite down many trees.First,the beaver will build a dam.This creates a pond for them to place their lodge (巢穴).The still,deep water protects them from enemies,including bears and wolves.They also make their entrances underwater to keep enemies from entering.Their dams and lodges can last for many years.They are well-constructed and require much effort to tear down.The male and female will produce many litters.Mothers often raise teenagers and newborns.In fact,the teen beavers will help with the younger beavers.A mother beaver will have two to four babies at a time.The young beavers will move out when they are about two years old.They will find mates and build their own lodges in another area.
66.Beavers’ tails can be useful in the following EXCEPT__________.
A.helping them swim B.building their lodges C.supporting their bodies D.giving warning sign to others
67.Which of the following about beavers is NOT true?
A mother beaver has one baby at a time.B.Beavers often have good hearing.C.The female grows faster than the male.D.It is the mother who raises the young.
68.Beavers often bite on wood mainly to__________.
A.feed themselves B.keep healthy C.build their houses D.stop their teeth growing 69.How can beavers protect themselves from enemies?
A.By biting down many trees B.By staying in their lodges C.By waving their large flat tails D.By working at night rather than in the daytime
70.Which of the following can best describe the characters of beavers?
A.A clever but shy animal.B.A brave and strong animal C.A productive and great builder D.A hard-working but dirty builder

高一英语阅读A beaver (海狐) has a large flat tail,which acts as a support when they sit or stand,a rudder (舵) when they swim,and a warning sign to others when danger is coming.Beavers can weigh as much as 60 pounds.The female is normally as
66、B 由第一句话可知、、
67、A 倒数第二行A mother beaver will have two to four babies at a time.
68、D 第五行They never stop growing so beavers must bite on wood often to keep them short.
69、B 由 7、8、行可知
70、D、倒数第四行及全文推测、、
基本都属于细节题、、认真看看你能做的、、

没有人的答案会比我得更详细。原创答案，原创翻译，其他回答者复制可耻。
66.B.海狐长着一条大大的、扁扁的尾巴，以便坐着或站着的时候好支撑自己，游泳的时候用它来控制方向，遇到危险的时候用它来作警告标志。
67.A 海狐妈妈一次可以生下二到四个小宝宝。
68.D海狐长着大门牙，它们从嘴中伸出来，并且不断生长，所以海狐必须经常啃木头让牙齿变短。
69.B 深水区可以保护...

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没有人的答案会比我得更详细。原创答案，原创翻译，其他回答者复制可耻。
66.B.海狐长着一条大大的、扁扁的尾巴，以便坐着或站着的时候好支撑自己，游泳的时候用它来控制方向，遇到危险的时候用它来作警告标志。
67.A 海狐妈妈一次可以生下二到四个小宝宝。
68.D海狐长着大门牙，它们从嘴中伸出来，并且不断生长，所以海狐必须经常啃木头让牙齿变短。
69.B 深水区可以保护它们远离熊、狼之类的天敌。它们把大门建在水下，这样做的目的也是为了御敌。
70C.海狐昼伏夜出，它们是了不起的建筑家。海狐夫妇可以生出很多小崽，一般母海狐带幼崽和婴儿。事实上，小海狐也可以照顾弟弟妹妹。海狐妈妈一次可以生下二到四个小宝宝。

海狐长着一条大大的、扁扁的尾巴，以便坐着或站着的时候好支撑自己，游泳的时候用它来控制方向，遇到危险的时候用它来作警告标志。海狐可长到60磅，雌性海狐正常情况下跟雄性一样大或者是更大。它们身上长着深棕色的防水皮毛。海狐视觉不好，但是其他感觉，向听觉、味觉和触觉都很好。海狐长着大门牙，它们从嘴中伸出来，并且不断生长，所以海狐必须经常啃木头让牙齿变短。海狐的鼻子上长着排水孔，这就当它们在水中嚼木头的时候水就不会进入嘴里。它们每次可在水下待十五分钟。海狐昼伏夜出，它们是了不起的建筑家。它们从树上采集大部分建筑材料，一晚上它们能啃倒很多棵树。首先，它们要建造一个水坝，这形成一个池塘来安置他们的巢穴。此外，深水区可以保护它们远离熊、狼之类的天敌。它们把大门建在水下，这样做的目的也是为了御敌。这些水坝和巢穴可以用好几年，它们建得很牢固不容易毁坏。海狐夫妇可以生出很多小崽，一般母海狐带幼崽和婴儿。事实上，小海狐也可以照顾弟弟妹妹。海狐妈妈一次可以生下二到四个小宝宝。当小海狐长到两岁的时候，它们就要离开爸爸妈妈独自生活了。它们会找到伴侣在新地方另辟天地。

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