by的用法.ppt

by的用法.ppt一、by+地点名词。表方位,意为:“在…旁边”。如:bythelake/river/tree/window/door等。 Aftersuppershewouldsitdownbythefire,sometimesforaslongasanhour,thinkingofheryoungandhappydays.(2003上海·春)注:有时可表:“从…旁经过”,多与动词go/walk/pass等连用。二、by+时间名词。意为:“到…时(已发生某事),此时谓语多用完成时;最晚、不迟于…,在…之前”。如:bynow/then/thistime/nextFriday/theendof/threeo'clock等。Thetrainleavesat6::40pmatthelatest三、by+名词。可用来表方法、方式、手段等。1、by+the+可数的时间、长度、重量等名词。意为:“按…计算,按…买(卖)”。如:bythepound/ton/yard/meter/dozen/bale/day/、by+表示时间、长度、重量等总称的不可数名词(名词前不加冠词)。意为:“按…计算,按…买(卖)”如bytime/volume/length/weight/height/depth/widthAsweallknow,+交通工具、交通方式名词(名词前不加冠词,不变复数)。意为:“通过…,由…,乘…”。如bytrain/rail/tube/taxi/bus/truck/bike/boat/plane;byland/road/sea/water/air等。by+:“通过…,靠…,凭…”。如:bywaiting/practing/begging/working/imitati