1
preheat sth
preheat 是及物动词，后面直接接被预热的对象。
Preheat the oven before you bake the cake.
烤蛋糕之前先把烤箱预热。
预热；预先加热
先理解核心含义，再看它在真实句子里的用法。
预热；预先加热
to heat something beforehand
Preheat the oven before you bake the cake.
烤蛋糕之前先把烤箱预热。
预先加热,为后续操作提前加热某物。
To heat beforehand or in advance, to heat something in preparation for further action.
preheat
Base
原形
preheats
3rd person
第三人称单数
preheating
-ing
现在分词
preheated
Past
过去式
preheated
Past participle
过去分词
I preheat the oven before baking.
烘焙前我会预热烤箱。
She preheated the oven for the cake.
她为烤蛋糕预热了烤箱。
They have preheated the oven already.
他们已经预热了烤箱。
preheat 是及物动词，常接 oven 等表示电器的名词。
Please preheat the oven to 180 degrees before you put the cake in.
请把烤箱预热到180度，再把蛋糕放进去。
The chef preheated the grill for ten minutes before cooking the steaks.
厨师在烤牛排前把烤架预热了十分钟。
She is preheating the oven while she prepares the dough.
她正在预热烤箱，同时准备面团。
preheat 是及物动词，后面直接接被预热的对象。
Preheat the oven before you bake the cake.
烤蛋糕之前先把烤箱预热。
常用搭配 preheat the oven to... 表示“把……预热到某个温度”。
Preheat the oven to 200°C.
把烤箱预热到200摄氏度。
用 for 加时间段表示预热持续的时间。
Preheat the iron for two minutes before use.
使用前把熨斗预热两分钟。
Not this
Preheat the oven at 200 degrees.
Use this
Preheat the oven to 200 degrees.
表示把烤箱预热到某一目标温度时，介词用 to；at 只表示温度状态或设定的温度，不与 preheat 搭配表示到达的度数。
Not this
Preheat the leftover soup in the microwave.
Use this
Reheat the leftover soup in the microwave.
preheat 表示“预先加热”（pre- 意为“之前”）；加热剩菜是“再次加热”，要用 reheat，而不是 preheat。
Not this
The preheat of the oven takes ten minutes.
Use this
The oven takes ten minutes to preheat.
preheat 是动词，不是名词；表示“烤箱需要十分钟预热”可用不定式结构，如 The oven takes ten minutes to preheat，而不能把 preheat 直接当作名词使用。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
预热烤箱
Always preheat the oven before putting in the cookies.
放饼干进去前一定要预热烤箱。
预热到200度
Preheat the oven to 200 degrees for a crispy crust.
将烤箱预热到200度可让外皮酥脆。
预热烤架
Preheat the grill and oil the grates to prevent sticking.
预热烤架，并在烤网上刷油以防粘连。
预热锅具
Preheat the pan before adding the onions so they caramelize quickly.
先预热锅再加洋葱，这样能快速焦糖化。
Use preheat naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记忆联想：pre-像“预先”，heat是“热”，合起来就是“预先加热”。想象烤箱预热：先开火加热，再放食物，记住这个先后顺序。
语域：neutral 常见场景：烹饪说明、设备操作说明 该词为中性标准用词，通常用于烹饪（如预热烤箱）和设备操作说明，正式与非正式场合都较常见，口语和书面语均可使用。
The words heat /hiːt/, meat /miːt/, seat /siːt/, and beat /biːt/ rhyme with preheat /priːˈhiːt/. Beware lookalikes spelled with -eat but pronounced differently: sweat /swet/ and great /ɡreɪt/.
Dictionary facts from ECDICT, WIKTIONARY.