VERBS | ADVERB | PREPOSITIONVERBS➤appear, be, seem顯得必要;必要;好像必要▸➤become變得必要◇It is becoming almost essential for students to have a second language.學生掌握第二語言幾乎是必須的了。➤remain依然必要▸➤make sth使⋯必要◇Increased competition makes it essential for the business to innovate.日益激烈的競爭使企業創新變得極為重要。➤consider sth, deem sth, find sth, regard sth as, see sth as, think sth認為⋯有必要;視⋯為必不可少◇Do you consider these textbooks essential for the course?你認為這個課程必須採用這些教科書嗎?ADVERB➤really, truly, very (NAmE) 的確/確實/非常必要▸➤absolutely絕對必不可少▸➤almost, virtually幾乎必不可少▸➤fairly相當必要➤clearly顯然必要◇A printer is clearly essential to such a task.顯然,這一工作必須要有一台打印機。➤equally同樣必不可少◇Diet is crucial; exercise is equally essential.飲食很關鍵,鍛煉也同樣必不可少。➤by no means絕非必要◇Although useful, the accessories are by no means essential.儘管這些配件很有用,但並非必不可少。PREPOSITION➤for對⋯是必要的◇the skills essential for success成功的必備技巧➤to對於⋯不可缺少◇He believed that some form of religion was essential to human life.他認為宗教信仰對於人生不可或缺。