Can you name an animal that returns to the place of its birth,every single year,journeying more than 1,000 km to do so? Well,here is another hint： this animal is a sea creature that originated on earth more than 200 million years ago一making the species older than the oldest ever dinosaur.

   Sea turtles live mostly in warm waters around the world and are graceful swimmers. Each year,from December to April,Gahirmatha plays host to hundreds of thousands of female Olive Ridley turtles. These turtles lay their eggs on the same beach where they were born. Turtles always return to the same nesting site year after year,even if they migrate (遷徙) thousands of kilometers. This particular phenomenon (現(xiàn)象) has baffled (困擾) scientists for years now and no one has any clue as to why they do so.


() 1. return to the place of its birth.

   A. Fish   B. Sharks   C. Sea turtles   D. Dolphins


() 2. Sea turtles live mostly in waters.

   A. warm   B. deep   C. cold   D. shallow (淺的)


() 3. Sea turtles take the journey about km to return to the same nesting site.

   A. 500   B. 1,000   C. 1,500   D. thousands of


() 4. know(s) why sea turtles return to the same nesting site*

   A. Scientists   B. Biologist

   C. Geographer   D. Nobody

1. C 2. A 3. D 4. D

閱讀提示：本文主要講述了海洋生物的代表性生物——海龜?shù)纳L與繁衍過程。

1. C細節(jié)理解題。由第二段中的第四句“Turtles always return to the same nesting site year after year”可知答案為 C.

2. A細節(jié)理解題。由第二段中的第一句“Sea turtles live mostly in warm waters around the world and are graceful swimmers ,”可知答 案為A.

3. D細節(jié)理解題。由第二段中的第四句“Turtles always return to the same nesting site year after year,even if they migrate (遷徙) thousands of kilometers. ”可知答案為 D.

4. D細節(jié)理解題。由第二段中的最后一句“This particular phenomenon (現(xiàn)象) has baffled (困擾 ) scientists for years now and no one has any clue as to why they do so. ”可知答案為 C.

題目來源：2016年啟東中學(xué)作業(yè)本英語閱讀理解與完形填空4 > Week 19 Know our world 了解我們的世界

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