necessary用法和搭配
1. 在系表结构后接不定式时，不能按汉语意思用“人”作主语，而用形式主语it。如：他有必要同我们一走去。
误：He’s necessary to go with us.
正：It’s necessary for him to go with us.
正：It’s necessary that he (should) go with us.
扩展资料
2. 表示“对……有必要”，其后可接介词 to 或 for。如：Food is necessary for [to] life. 食物对生命是必要的。
Sleep is necessary to [for] one’s health. 睡眠对健康是必不可少的.。
当后接不定式的复合结构时，引导不定式逻辑主语的介词通常只用for而不用 to。如：
It’s necessary for us learn a foreign language. 我们有必要学习一门外语。
3. 可与 if, when, where, as, whenever, wherever, although 等连词构成省略句(可以看成是其中省略了it is)。如：
If necessary, ring me at home. 如果必要，可往我家里打电话。
Tell him all about it when necessary. 在必须的时候把一切都告诉他。
Where necessary, improvements will be made. 哪儿需要，就在哪儿改进。
绛旓細1銆佸姞涓妕o do, 缈昏瘧鎴愬仛鈥︹﹀緢鏈蹇呰 2銆佸姞涓妕hat 浠庡彞锛岀炕璇戞垚鍙ュ瓙鍔犱笂寰堟湁蹇呰锛屾瘮濡傝It is necessary that you make a cake. 浣犲仛涓涓泲绯曞緢鏈夊繀瑕併3銆佸姞涓婁汉锛屽啀鐢ㄥ墠涓ゆ鐨鐢ㄦ硶锛屾瘮濡傝锛孖t is necessary for you
绛旓細3.鐢ㄤ簬琛ㄧず鍙兘鎬ф垨鍙兘鍙戠敓鐨勪簨浠讹細If she should fall,then so would I.濡傛灉濂瑰け璐ヤ簡锛岄偅鎴戜篃浼氬け璐 4.鐢ㄤ簬浣夸竴涓洿鎺ユ垨鐩寸巼鐨勯檲杩板彉寰楀杞細I should think he would like to go.鎴戝掓槸璁や负浠栨効鎰忓幓 necessary鐨鐢ㄦ硶 It is necessary for sb to do sth.瀵规煇浜烘潵璇村仛鏌愪簨鏄蹇呰鐨勶紒
绛旓細be necessary to do鏄纭殑鐢ㄦ硶銆備緥瀛愶細It might be necessary to make a few slight modifications to the design.缈昏瘧锛氫篃璁告湁蹇呰瀵硅繖涓璁＄◢浣滃嚑澶勪慨鏀广傝闊筹細鑻 [bi ˈnesəsəri] 缇 [bi ˈnesəseri] 銆傞噴涔夛細鏈夊繀瑕併俷ecessary鐢ㄤ綔褰㈠璇嶆椂,琛ㄧず鈥滃繀瑕...
绛旓細necessity鍜necessary浣滃悕璇嶏紝鐢ㄦ硶鐨勫尯鍒负锛氭剰鎬濅笉鍚屻佺敤娉曚笉鍚屻佷晶閲嶇偣涓嶅悓銆備竴銆佹剰鎬濅笉鍚 1銆乶ecessity锛氬繀鐒讹紝蹇呰銆2銆乶ecessary锛氬繀闇锛屽繀鐒躲備簩銆佺敤娉曚笉鍚 1銆乶ecessity锛歯ecessary鍙敤浣滃畾璇佽〃璇垨瀹捐琛ヨ冻璇俷ecessary涓鑸笉鐢ㄨ〃绀轰汉鐨勫悕璇嶆垨浠ｈ瘝浣滃叾涓昏锛岃岄氬父瑕佺敤it浣滃舰寮忎富璇2銆乶ecessary锛...
绛旓細鍏舵锛屾垜浠繘涓姝ユ帓闄わ紝鍙戠幇necessary鐨勫悕璇嶅舰寮忓簲涓簄ecessity锛堝繀闇鍝侊級锛屽湪璇箟涓婁笉璐村垏锛涗笖锛岀┖鏍煎悗闈㈡槸to鍔犲姩璇嶅舰寮忓仛琛ヨ冻璇紝鍓嶉潰鏀剧疆褰㈠璇嶄笉瀹规槗寮曡捣姝т箟锛堟澶勭悊瑙ｈ緝闅撅紝鍙暐杩囷級锛屽苟涓旇緝绗﹀悎涔犳儻鐢ㄦ硶銆傝嫢涓嶈冭檻necessity璇箟涓婄殑涓嶆弧瓒筹紝鍙冭檻涓鑸儏鍐典笅鍚嶈瘝鍚庡姞琛ヨ冻璇慨楗板簲浠here be褰㈠紡寮曞杈冨Ε锛...
绛旓細鈥渂e necessary to鈥濈殑鎰忔濇槸鈥滃...鏉ヨ鏄蹇呰鐨勨濓紝鍏朵腑鈥渂e鈥濇槸绯诲姩璇嶏紝鈥渘ecessary鈥濇槸褰㈠璇嶏紝琛ㄧず鏌愮浜嬬墿鏄繀闇鐨勬垨蹇呬笉鍙皯鐨勩傚湪鐢ㄦ硶涓婏紝鈥渂e necessary to鈥濆悗闈㈤渶瑕佹帴鍔ㄨ瘝鍘熷舰鎴栧悕璇嶏紝琛ㄨ揪鈥滃鍋氭煇浜嬫垨鏌愮墿鐨勫繀瑕佹р濄備緥濡傦紝鈥淚t is necessary to complete the task on time.鈥濓紙鎸夋椂...
绛旓細鍥犳锛岃繖灏嗘槸蹇呰婢勬竻杩欎笌鐗瑰畾鐨勪繚闄╁叕鍙搞2.be necessary to鐢ㄦ硶锛氬悓if, when杩炵敤,鐢ㄤ綔鎻掑叆璇備緥鍙ワ細It may be necessary to thin the sauce slightly 鍙兘鏈夊繀瑕佸皢閰辨眮绋嶇◢绋閲婁竴涓嬨備笁銆佷晶閲嶇偣涓嶅悓 be necessary for渚ч噸鐐癸細鎸囧湪姒傚康鍜岄昏緫涓婃墍瑕佹眰搴旇鍋氱殑,鏈韩鍖呭惈鐫鈥滄棦涓嶅彲灏,鍙堜笉鍙伩鍏嶇殑...
绛旓細be ... to sb浠ュ強be ... for sb to do sth, 杩欎袱涓彞寮忎笉瑕佸紕娣蜂簡銆傚湪妤间富鎻愬埌鐨勮繖涓や釜浠嬭瘝鐨勫尯鍒椂锛岃鎶婂浐瀹鎼厤鐨勭煭璇暣浣撳湴鏉ョ湅銆備緥鍙ワ細It is necessary/important/useful for me to learn English.English is necessary/important/useful to me.杩欓噷鐨刦or鍜宼o涓嶈娣风敤浜嗭紝杩欎袱涓〃杈炬柟寮...
绛旓細鍥犳锛岃繖灏嗘槸蹇呰婢勬竻杩欎笌鐗瑰畾鐨勪繚闄╁叕鍙搞2.be necessary to鐢ㄦ硶锛氬悓if, when杩炵敤,鐢ㄤ綔鎻掑叆璇備緥鍙ワ細It may be necessary to thin the sauce slightly 鍙兘鏈夊繀瑕佸皢閰辨眮绋嶇◢绋閲婁竴涓嬨備笁銆佷晶閲嶇偣涓嶅悓 be necessary for渚ч噸鐐癸細鎸囧湪姒傚康鍜岄昏緫涓婃墍瑕佹眰搴旇鍋氱殑,鏈韩鍖呭惈鐫鈥滄棦涓嶅彲灏,鍙堜笉鍙伩鍏嶇殑...
绛旓細be necessary for瀵光︹︽湁蹇呰 be necessary for锛 鏈夊繀瑕侊紱瀵光︹︽湁蹇呰锛涘鈥︹︽槸蹇呰鐨勶紱瀵光︹︽槸蹇呴渶鐨 be necessary for鈥︼細 瀵逛簬鈥︹︽潵璇存槸蹇呬笉鍙皯鐨 渚嬪彞涓庣敤娉 Leadership from different sectors of society will be necessary for the major upgrading that is required.鏉ヨ嚜绀句細鐨勪笉鍚...
