Nowadays little knowledge __ to be a dangerous thing.
C
【考情点拨】考查主谓一致。
【应试指导】句意：如今，知识匮乏似乎的确是一件危险的事。由句首的nowadays能够判断，该句的时态为一般现在时，故排除B项。littleknowledge表示的是否定意义，是不可数名词，故谓语动词要用单数，故排除A项和D项。does在这里是助动词，表示强调。
Moviegoersknowthatmanyspecialeffectsarecreatedbycomputers,theyoftendon'tknowisthatthesescenesstillrequirealotofwork.
Wheneverhecomestoourgarden,hecan’thelp_________theflowers.
__________inthoughtwhiledriving,healmostranintothecarcomingintheoppositedirection.
Theclockhasstopped.I________getitgoagainandsetthealarm,orIwillbelateagaintomorrow.