Question

19．Sea turtles come in many different sizes，shapes and colors．The shell of each sea turtle species is different in length，color，shape and the arrangement of the scales（鱗片）．
Sea turtles do not have teeth but use their jaws （下巴）to eat．Their sense of smell is excellent．Th eir eyesight underwater is good，but they have near-sighted eyes out of water．Their special bodies make them adapt to life at sea．However，sea turtles maintain（保持） close ties to land．
Female sea turtles have to go to the seaside to lay their eggs in the sand； therefore，all baby sea turtles begin their lives on land．Most research on sea turtles has been focused on female turtles nesting and the baby sea turtles in the nest，largely because they ca n be found most easily．After decades of studying sea turtles，much has been learned about．However，many mysteries（謎） still remain．
Researchers do not yet know how long baby turtles spend in the open sea，or exactly where they go．People believe they spend their earliest years floating in the sea，where they do little more than eat and grow．Once turtles reach dinner-plate size，they appear at feeding grounds in waters near the shore．They grow slowly and take between 15 and 50 years to grow old enough to bear baby sea turtles，depending on the species．There is no way to know the age of a sea turtle from its physical appearance．It is believed that some species can live for over 100 years．
28．Which of the following statements is NOT true about sea turtles？C
A．They don't use teeth to eat．
B．They have a good sense of smell．
C．Sea turtles are more adaptable to life at sea．
D．Different species have different shells．
29．The underlined phrase"near-sighted eyes"in the second paragraph meansD．
A．good eyesight                     B．bad eyes
C．excellent eyes                     D．poor eyesight
30．Which of the following questions is answered in the text？D
A．Why do female turtles lay eggs on land？
B．Why can't people tell how old a sea turtle is from its appearance？D
C．Where do the baby turtles usually go？
D．Do sea turtles grow very fast？
31．What would be the best title for the text？D
A．Mysteries About Sea Turtles
B．Baby and Female Sea Turtles
C．The Growth of Different Sea Turtles
D．The Characteristics（特點(diǎn)） of Sea Turtles．

Answer 1

分析 本文屬于說明文閱讀，作者通過這篇文章主要向我們描述了海龜?shù)囊恍┨攸c(diǎn)，如水下視力好，生長緩慢，幼年在海中生長，成年在 岸上覓食等．

解答 28．C．細(xì)節(jié)理解題．根據(jù)第二段第一行Sea turtles do not have teeth but use their jaws （下巴）to eat．Their sense of smell is excellent可知AB正確．第一段第二行The shell of each sea turtle species is different in length，color，shape and the arrangement of the scales（鱗片）．可知D正確．C項(xiàng)說的不清楚，文章沒有講海龜更適合哪兒生活；故選C．
29．D．猜測句意題．根據(jù)上一句Their eyesight underwater is good．說明他們水下視力非常好，再根據(jù)but，表示后面的意思與前面相反，說明在陸地上海龜?shù)囊暳�很差；故選D．
30．D．細(xì)節(jié)理解題．根據(jù)最后一段第三行They grow slowly and take between 15 and 50 years to grow old enough to bear baby sea turtles，depending on the species．可知海龜是生長的很緩慢的；故選D．
31．D．主旨大意題．文章講述了海龜?shù)囊恍┨攸c(diǎn)，如水下視力好，生長緩慢，幼年在海中生長，成年在 岸上覓食等；故選D．

點(diǎn)評 考察學(xué)生的細(xì)節(jié)理解和推理判斷能力，做細(xì)節(jié)理解題時(shí)一定要找到文章中的原句，和題干進(jìn)行比較，再做出正確的選擇．在做推理判斷題不要以個(gè)人的主觀想象代替文章的事實(shí)，要根據(jù)文章事實(shí)進(jìn)行合乎邏輯的推理判斷．