是什么导致了泰国海龟悲剧？
A turtle in Thailand that had an operation(手术) to take nearly 1,000 coins out of her stomach two weeks ago has died. Omsin’s death caused a national-wide sadness.
Named Omsin, meaning “Piggy Bank”, she was found to be eating coins thrown into a public pond where she lived. The coins were thrown into the pond by visitors hoping for good luck. By the time they were taken out, she was carrying 5kg of coins. The unusual weight of metal had cracked her shell, making the seven-hour operation necessary.
She was said to have been doing well after the first surgery but developed blood poisoning(中毒) at the weekend. The 25-year-old sea turtle fell into a coma(昏迷) and never woke up after a second operation to cure blood poisoning. Even after she got into a coma, the doctors were trying to save her.
Doctors said the first operation had helped create a space in Omsin’s stomach that had probably stopped the flow of blood in her stomach. But the coins have poisoned her blood and thus caused her death.
1.How much does a coin probably weigh?
A 2.5g.
B 5g.
C 10g.
D 5kg.
解析：选B。B 数字计算题。根据第一段A turtle in Thailand that had an operation(手术) to take nearly 1,000 coins out of her stomach two weeks ago has died.和第二段By the time they were taken out, she was carrying 5kg of coins.可知海龟胃里面有约1000枚硬币，共重5千克，因此每枚硬币重约5克，故选B。
2.How long did the operation take?
A 7 hours.
B 10 hours.
C 12 hours.
D 15 hours.
解析：选A。A 细节理解题。根据第一段...making the seven-hour operation necessary.可知第一次手术进行了7个小时，故选A。
3.People throw coins into the pond to __________.
A make money
B become lucky
C feed the turtle
D play with the turtle
解析：选B。B 细节理解题。根据第二段The coins were thrown into the pond by visitors hoping for good luck.可知游客向许愿池扔硬币是为了祈求好运，故选B。
4.What does the underlined word “surgery” probably mean in Chinese?
A 检查.
B 手术.
C 恢复.
D 休养.
解析：选B。B 词义猜测题。根据第三段可知海龟在第一次surgery后状况良好，但在周末出现了血液中毒，然后在第二次（为治愈血液中毒）手术后陷入昏迷，最后不幸死亡。可知surgery和operation意思相同，均为“手术”，故选B。
5.The turtle died of/from __________.
A the stop of blood flow
B the second operation
C blood poisoning
D the coma
解析：选C。C 细节理解题。根据最后一段But the coins have poisoned her blood and thus caused her death.可知是血液中毒导致了海龟的死亡，故选C。