锟斤拷锟斤拷1.  cost     n .[U] 锟組(f锟斤拷i)锟斤拷锟斤拷锟斤拷锟絩

锟斤拷锟斤拷锟斤拷锟斤拷锟絊锟洁父母锟斤拷锟絝,锟缴凤拷薪水支锟斤拷锟较學(xu锟斤拷)锟斤拷锟組(f锟斤拷i)锟斤拷锟角很伙拷锟斤拷锟斤拷.For many parents, two salaries are essential to cover the cost of (= pay for) school fees.

锟斤拷锟斤拷v .[T]  cost, cost "How much does this book cost (= What is the price of this book)?"

锟斤拷锟斤拷costly :    adj. expensive: 锟斤拷锟紽锟斤拷

锟斤拷锟斤拷2  cover

锟斤拷锟斤拷v.锟斤拷.锟斤拷锟絃锟斤拷锟斤拷锟絊he covered the outbreak of bird flu in Viet Nam. 锟斤拷锟斤拷越锟较诧拷锟絃锟斤拷锟絇(gu锟斤拷n)锟斤拷锟斤拷锟叫憋拷锟絣(f锟斤拷)锟铰硷拷锟斤拷

锟斤拷锟�锟斤拷锟�. 锟斤拷锟�锟斤拷锟絒锟斤拷She laughed to cover her anxiety.锟斤拷試锟紻锟斤拷笑锟斤拷锟斤拷锟斤拷锟斤拷慕锟斤拷]锟斤拷

锟斤拷锟�锟斤拷郏锟斤拷锟斤拷帽锟斤拷锟斤拷Z锟紹(t锟斤拷i)锟斤拷锟斤拷锟絕锟斤拷路锟教ｏ拷锟斤拷锟絎(xu锟斤拷)锟絕We covered about 30 miles a day.锟揭傦拷每锟斤拷锟絪锟斤拷锟斤拷十英锟斤拷锟斤拷

锟斤拷锟斤拷锟杰ｏ拷锟絏锟斤拷锟斤拷锟絀s the money enough to cover the tuition?锟紷锟絇锟絏锟斤拷锟絎(xu锟斤拷)锟組(f锟斤拷i)锟斤拷锟�锟斤拷

锟斤拷锟斤拷3   eager adj.锟斤拷锟斤拷锟侥ｏ拷be eager for sth. 锟斤拷锟斤拷/锟斤拷锟斤拷He was eager for success.

锟斤拷锟斤拷be eager to do sth.锟斤拷锟斤拷锟斤拷某锟斤拷

锟斤拷锟斤拷eager  anxious 锟斤拷锟斤拷"锟斤拷锟斤拷"之锟解，Eager锟斤拷锟叫革拷锟斤拷臒锟斤拷锟�锟斤拷锟絛锟絕锟斤拷锟斤拷w锟斤拷Anxious锟斤拷锟叫革拷锟斤拷慕锟斤拷]锟斤拷锟斤拷锟介。

锟斤拷锟斤拷4   case     锟铰岋拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷r,锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷

锟斤拷锟斤拷in case 锟皆凤拷锟斤拷锟斤拷锟斤拷锟斤拷in case of  锟斤拷锟�锟斤拷锟絝一

锟斤拷锟斤拷in that/this case 锟斤拷锟角橈拷/锟紷锟絅锟斤拷r锟斤拷      in no case 锟絈锟斤拷

锟斤拷锟斤拷锟斤拷注锟解：in case 锟侥從句常锟斤拷一锟斤拷F(xi锟斤拷n)锟节時锟斤拷示锟斤拷锟斤拷锟斤拷锟斤拷should +do.

锟斤拷锟斤拷1.________ fire, ring the alarm bell.   2.__________ he comes, let me know.

锟斤拷锟斤拷3.__________ should the bird flu be spread.

锟斤拷锟斤拷4.It might rain tomorrow. _________ we will have to put off the sports meet until next Friday

锟斤拷锟斤拷锟斤拷锟絛锟斤拷http://files.eduu.com/down.php?id=240121