ahead

音標(biāo)發(fā)音

adv. 朝前地，在前面；提前地；領(lǐng)先；（為進(jìn)步而）向前地；（數(shù)量或價(jià)值上）更多，更高；將來；獲得成功；占優(yōu)勢(shì)
adj. 在前的，領(lǐng)先的；提前的

ahead的基本意思是“在前面”，指空間、時(shí)間、位置超前，也可指關(guān)系“超過”“比…強(qiáng)”。ahead雖譯為“在前”，但其含義有時(shí)卻指“以后”，即“到將來”。
ahead常修飾動(dòng)詞，在句中作狀語, 也可修飾名詞或名詞性短語，在句中作后置定語。
ahead還可作表語，后面接介詞in時(shí)表示“在某方面領(lǐng)先”; 后面接介詞of時(shí)表示“在前，優(yōu)于，面臨著”。
ahead不用于比較等級(jí)。
ahead在指“在前”時(shí)，是表達(dá)了將來的一個(gè)時(shí)間，未發(fā)生的，指“以后”。I have a very busy day ahead of me. 我接下去的這一天會(huì)很忙。
ahead在指“預(yù)先”時(shí)，表達(dá)的是之前的一個(gè)時(shí)間，指“以前”。We must decide a week ahead. 我們必須要在一周前預(yù)先決定好。

Something that is ahead is in front of you. If you look ahead, you look directly in front of you.
You use ahead with verbs such as "push," "move," and "forge" to indicate that a plan, programme, or organization is making fast progress.
If you are ahead in your work or achievements, you have made more progress than you expected to and are performing well.
If a person or a team is ahead in a competition, they are winning.
Ahead also means in the future.
If you prepare or plan something ahead, you do it some time before a future event so that everything is ready for that event to take place.
If you go ahead, or if you go on ahead, you go in front of someone who is going to the same place so that you arrive there some time before they do.
If someone is ahead of you, they are directly in front of you. If someone is moving ahead of you, they are in front of you and moving in the same direction.
If an event or period of time lies ahead of you, it is going to happen or take place soon or in the future.
In a competition, if a person or team does something ahead of someone else, they do it before the second person or team.
If something happens ahead of schedule or ahead of time, it happens earlier than was planned.
If someone is ahead of someone else, they have made more progress and are more advanced in what they are doing.
one step ahead of someone or something&rarrsee step
ahead of your time&rarrsee time