Sea turtles are found in all warm waters throughout the world. Sea turtles are the 36_ of the turtles. The largest kind of sea turtle can grow as long as eight feet and 37 1,500 pounds. Even the smallest kind, Kemp’s-Ridley, can 38 to 28 inches long and weigh almost 100 pounds. Many other turtles are small enough to 39_ in your hand. It is difficult to find population numbers for sea turtles because they do not 40_ shore once they hatch and reach the ocean, which makes it hard to _41_ them. Sea turtles _42 in the water because they are safer there. They cannot _43_ their heads and feet into their shells like other turtles can. Sea turtles cannot hide inside their shells __44 other animals that want to eat them. They need to move quickly to stay safe.
When the weather 45 warm, sea turtles leave the ocean to 46_ their eggs on the beach. This is the only time they will ever leave the water. Most 47 turtles spend part of the time in water 48 _ part of the time on land. It is easy to understand 49_ sea turtles stay in the water. Their 50 _ to swim is greater than their ability to walk. Their heavy bodies and unusual feet make it hard for them to 51 on land. They are better 52_ for life in the water. They are well suited for life in the sea because of 53_ their bodies are made.
The way their feet are made helps sea turtles swim very quickly. Their feet look like long 54 . When they swim, they flap their feet like a bird flaps its wings. This 55_ way of swimming benefits sea turtles. It allows them to escape from their enemies.
【小题1】A．dwarfs B．giants C．mammalsD．ancestors【小题2】A．measure B．weigh C．sellD．sound【小题3】A．grow up B．bring up C．take up D．go up【小题4】A．suit B．fitC．match D．seize【小题5】A．go to B．turn to C．back to D．return to【小题6】A．keep up with B．keep track of C．keep in touch with D．keep to【小题7】A．swim B．hide C．sleep D．stay【小题8】A．pushB．drawC．dragD．pull【小题9】A．away B．from C．for D．to【小题10】A．bees B．turns C．changes D．leads【小题11】A．lay B．lie C．laid D．lain【小题12】A．the other B．anotherC．other D．others’【小题13】A．but B．and C．or D．so【小题14】A．when B．whereC．whyD．as【小题15】A．techniqueB．talent C．abilityD．opportunity【小题16】A．walk B．travel C．wander D．play【小题17】A．adopted B．adapted C．adequateD．admitted【小题18】A．the way B．the manner C．the methodD．the shape【小题19】A．paddlesB．sticks C．wings D．tails【小题20】A．abnormalB．unusual C．ordinary D．unbelievableB
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(答案→)B
解析：本文讲述的是海龟的生活习性以及与其它乌龟的不同之处。
【小题1】考查名词辨析。 根据后面提到的The largest kind of sea turtle can grow as long as eight feet可知应选B。dwarf 矮子 mammal哺乳动物 ancestor 祖先 giant巨人。
【小题2】考查动词辨析。根据后面的单位pounds可知应选weigh（重达）.
【小题3】考查动词短语辨析。根据句意，最小的种类可以长到长达28英寸。其实，这里的grow是单独一个动词，而up to表示多达…，并非grow up(成长)的意思。
【小题4】考查动词辨析。许多其他的乌龟是足够的小以至于适合在你的手中。fit是大小的适合；suit主要是指款式、颜色的适合；match是匹配的意思；seize逮住。
【小题5】考查动词短语。根据意思，一旦他们孵化回到海里以后，他们不会回到(return to)岸上。
【小题6】考查动词短语辨析。keep up with 跟上，不落后；keep track of 记录；跟踪 keep in touch with保持联系 keep to坚持；遵守 根据句意，这使得跟踪他们的行迹很难。故选B。
【小题7】考查常识题。海龟呆在(stay)水里是因为水里安全。他们不是躲在(hide)水里。下文倒数第二段中也有提示。
【小题8】考查动词辨析。pull 拉 push 推 draw 拖drag 缓慢而吃力地行进 pull…into…把…拉进…中。海龟不能把它的头和脚都缩进他们的壳里。
【小题9】考查介词或副词。hide from隐瞒；躲藏。意思为：海龟不能把自己躲在壳里瞒过其它要吃他们的动物。
【小题10】考查连系动词辨析。turn指在颜色和性质等方面与以前的完全不同，强调变化的结果。turn的主语多为物；故天气变暖应用turn，C、D不是连系动词。
【小题11】考查lay的用法。 lay eggs 下蛋 lie 位于，躺 此处应用原形，故C、D均错误。
【小题12】考查other的用法。the other用于两者中另一个；other其它的 another另一个；另外的基数词应放在another的后面；others是代词 其它的…后面不跟名词，others=other turtles.根据句意，此处应为其它的乌龟，故应用other.
【小题13】乌龟一部分时间在岸上，一部分时间在水里。两者是并列关系，故用and。
【小题14】考查疑问词。根据意思，理解为什么海龟水里是很容易的。
【小题15】考查上下文串联。根据后面the ability to walk可知答案为C.
【小题16】考查动词辨析。海归在陆地上不是散步(walk)，也不是徘徊（wander），更不可能是玩(play)，故选B。
【小题17】考查形容词辨析。adopted 被收养的；被采纳的； adapted适合的；adequate充足的 admitted 公认的 根据意思：他们更能适应水里的生活。
【小题18】考查上下文串联。根据下文的the way their feet are made.可知答案为A。
【小题19】考查名词辨析，根据下文When they swim, they flap their feet like a bird flaps its wings.可知答案为A. paddle船桨
【小题20】考查形容词辨析。根据上面所说他们的游泳方式与鸟相似，这是不同寻常的方式，故选B。abnormal不正常的 ordinary 普通的 unbelievable 难以置信的。