文档介绍：非谓语动词 。不定式做主语时,通常使用形式主语。而将做主语的不定式放在句子的后面。mentsfromsecretariesandtypistswhoarealreadyusingit.(,SeniorBook3)pletethetrip?(,SeniorBook2B)。Ihavedecidedtotakealotofcabbageinvinegar.(,SeniorBook3)Agriculturefirststartedabout10,000yearsago,whenpeoplebegantogrowcropsintherivervalleysoftheNileinEgypt,intheMiddleEastandinIndia.(,SeniorBook3)不定式做宾语时也有使用形式宾语的问题,但必须同时具备两个条件:①有宾语补足语。②宾语是动词不定式短语或宾语从句。Thedustyairmakesitdifficulttogetaclearpictureofspace.(,SeniorBook2B)以上句子中,it为形式宾语;difficult为宾语补足语;不定式短语togetaclearpictureofspace是真宾语。.(,SeniorBook3)Abettermethodistotakewastefarouttoseainshipswherethewindandwavesbreakitdown.()…butitisthoughtthat500millionpeopleintheworlddonothaveenoughtoeat,thatisaboutoneinten.(,SeniorBook3)FarmershavetherighttoselltheircropstotheEU.(,SeniorBook3),etoosaltytogrowplants.(,SeniorBook3)etoosalty的结果状语。oincreasethefoodsupplyintheworld.),SeniorBoo9k3)toincreasethefoodsupplyintheworld是目的状语。不定式表示目的极为常见。有时为了强调目的,可以用inorderto或soasto;有时将不定式短语置于句首也是表示目的常见用法。Cookwentupanddowntheriverinordertochartallthedangerousrock.(,SeniorBook3)Thelionlookedatherassheswungtheporkinherhandsoastoattractthelion’sattention.(,SeniorBook2A)eatopgymnast,itisimportanttostartwhenveryyoung.(,SeniorBook3)Todothat,itmustfindaplacewhereitcankeepfairlywarm;anditmustbeaplacewhereitsenemycannotfindit.(,SeniorBook3)onlytodo是不定式做结果状语的典型用法,这种“结果”往往是预想不到的。:绝大多数做宾语补足语的不定式用带to的动词不定式;动词see,hear,watch,feel,notice,observe,have,make,let后做宾语补足语的不定式主动语态时必须用不带to的不定式;改为被动语态又必须用to。Whatstoresdoyouwantmetoorder?(,SeniorBook3)ButCookorderedthecrewstothrowoverthesideoftheshipguns,ironballs,potsandchainsandevenstorestoraisetheboatinthewater.(,SeniorBook3)AndIadviseyouno