2010年12月英语四六级备考：改错练习题(6)

　　第六篇： Error Correction (15 minutes)

　　Living is risky. Crossing the road, driving a car,

　　flying, swallowing an aspirin table or eating a chicken

　　sandwich-they can all be fatal.

　　Clearly some risks worth taking, especially when the --61.

　　rewards high: a man surrounded by flames and smoke

　　generally considers that jumping out of a second-floor

　　window is an acceptable risk to save its life. But in --62.

　　medicine a few procedures, drugs, operations or tests --63.

　　are really a mater of life and death. There may be

　　sound medicine reasons are totally dependent --64.

　　in the balance of risks and benefits for the --65.

　　patients.

　　Surgery for cancer may cure or prolong a life, but

　　the removal of tonsils(扁桃体) cannot save anything a --66.

　　sore throat. Blood pressure drugs definitely help some

　　people live after a heart attack, but these same drugs

　　may be both necessary and harmful for those with only --67.

　　mild blood pressure problems.

　　Deciding how much discomfort and risk we are preparing --68.

　　to put up with in the name of better health is a high --69.

　　personal matter, not a decision we should remain to --70.

　　doctors alone.

　　答案：61. risks ∧ worth → are

　　62. its → his

　　63. a few → few

　　64. medicine → medical

　　65. in → on 或 upon

　　66. anything ∧ a → but 或 except

　　67. necessary → unnecessary

　　68. preparing → prepared 或 ready 或 willing

　　69. high → highly

　　70. remain → leave