高二英语：经典题型解析(22)

　　43. Oil prices have risen by 32 percent since the start of the year, ____ a record US$57.65 a barrel on April 4. (2005山东)
　　A. have reached
　　B. reaching
　　C. to reach
　　D. to be reaching
　　【解析】选B分词在句中做结果状语，可参见本单元的句型6。
　　44. ____ the pot for me, and don't let the milk come out. I'll be back soon.
　　A. Observe
　　B. Notice
　　C. Watch
　　D. Look out
　　【解析】选Cwatch 表示集中精力“照料，监视”，本句意为“帮我看着壶，别让牛奶溢出来。”；observe意为“观察”，表示动作；Notice指“注意到”表示结果；look out后面不能接宾语。