一、word study
　　approximate,proportion,appreciation,acknowledge,neglect
　�、� approximate a.近似的，大約的
　　The approximate number of immigrants is two million.
　　移民數(shù)目大約為兩百萬。
　　The approximate length of a meter is 40 inches.
　　一米大約為 40 英寸。
　　vt.1、近似，接近；2、使接近（在直接賓語后用介詞 to）
　　Your account of w hat happened approximates the real facts, but there are some small inaccuracies.
　　你對發(fā)生的情況的描述接近實(shí)際情況，但有些小的出入。
　　We try to approximate the operating temperature to the optimal value. 我們努力使工作溫度接近最佳值。 vi.接近（其詞義與及物動詞相同，只是后面接介詞 to）
　　Your account of w hat happened approximates to the real facts.
　　你對發(fā)生的情況的描述接近實(shí)際情況。
　�、� proportion n.比率，比例
　　in proportion to  表示“與。。。成比例”； out of proportion  表示“與。。。不成比例”
　　The proportion of births to the population is increasing.
　　人口出生率在上升。
　　A large proportion of the earth surface is ocean.
　　地球表面的大部分是海洋。
　　The camel possesses strength in proportion to its size.
　　駱駝的力氣與它的身體大小成比例。
　　His earnings are out of all proportion to his skill and ability. 他的收入與他的技術(shù)及能力很不相稱。 vt.使成比例；使相稱
　　The soldier proportioned his pace to the march.
　　戰(zhàn)士調(diào)制步子以便與行軍的步伐一致。
　�、� appreciation n.1、欣賞，鑒賞；2、正確評價(jià)；3、感激，感謝
　　A person with an appreciation of art and literature is qualified for the job.
　　一個(gè)具有文學(xué)藝術(shù)欣賞力的人能勝任這項(xiàng)工作。 Rabbits have a well-know n appreciation for family life. 眾所周知，兔子有重視家庭生活的習(xí)性。
　　We take this opportunity of expressing our sincere appreciation of your help.
　　對你們的幫助，我們趁這個(gè)機(jī)會向你們表示衷心的感謝。
　　They are mistaken in their appreciation of the country’s economic conditions.
　　他們對國家經(jīng)濟(jì)形勢的判斷是錯(cuò)誤的。
　�、� acknowledge vt.1、承認(rèn)；2、表示謝意
　　He acknowledged his ow n faults.
　　他承認(rèn)了自己的過失。
　　The sales department acknowledged my order form.
　　銷售部表示收到了我的訂貨單。
　　The minister acknowledged his adviser ’s services to the city.
　　部長就他的顧問對城市的貢獻(xiàn)表示感謝。
　�、� neglect vt./n.忽視，忽略；疏忽 They neglected his w arning .
　　他們對他的警告置之不理。
　　The secretary w as fired for neglecting her duty.