第一讲时态、语态基本定义最重要示之以范____________________________________________________原则这样运用1.(2018·全国卷Ⅰ)Fastfood____________(be)fulloffatandsalt;byeatingmorefastfoodpeoplewillgetmoresaltandfatthantheyneedintheirdiet
is解析:此处表示客观事实,应用一般现在时,故填is
2.(2016·浙江卷)Whileonlineshopping____________(change)ourlife,notallofitseffectshavebeenpositive
haschanged解析:主语是onlineshopping,结合语境以及后面的havebeen可知,这里要用现在完成时
3.(2016·浙江卷)Silk____________(become)oneoftheprimarygoodstradedalongtheSilkRoadbyabout100BC
hadbecome解析:byabout100BC是时间状语,这里强调到公元前一百年为止,所以要用过去完成时
4.(2015·天津卷)Janecan’tattendthemeetingat3o’clockthisafternoonbecauseshe____________(teach)aclassatthattime
willbeteaching解析:atthattime提示此处表示将来的某个具体时间正在发生的动作
5.(2016·北京卷)Jack____________(work)inthelabwhenthepowercutoccurred
wasworking解析:表示过去某时正在发生的事情,应用过去进行时
6.(2018·太原一模)A