
需要做…
How much money do we need to do the job properly?
我們需要多少錢才能做好這件事?
All you need to do is upload the files on to your web space.
你所需要做的隻是把文件上傳到你的網絡空間。
What kind of tests do we need to do?
我們需要做什麼樣的檢驗呢?
They need to shift from farming to industry, and they need to do so desperately.
他們需要從農業領域轉移到工業領域,并且他們需要拼命地那麼做。
We need to do whatever we can do to prevent further damage to our natural environment.
我們需要竭盡所能來防止對自然環境造成更大損害。
"need to do"是英語中常見的情态動詞短語結構,表示"需要做某事"的客觀必要性或主觀責任。該表達由動詞need加不定式符號to構成,具有以下語言學特征:
必要性表達 作為半情态動詞,need to do強調客觀存在的需求或義務。例如:"Doctors need to update medical knowledge regularly"(醫生需要定期更新醫學知識)。區别于must的主觀強制性,need to更側重客觀要求。
語法結構 其否定形式為"do/does/did not need to",疑問句需添加助動詞。例如:"Does this medication need to be refrigerated?"(這種藥物需要冷藏嗎?)。在英式英語中,否定可用"needn't do"替代。
語用功能 常用于正式場合表示職責要求,如法律文書:"Applicants need to submit original documents"(申請人需提交原始文件)。在美式英語中,該表達使用頻率顯著高于need doing結構。
語義辨析 與have to do相比,need to do更強調必要性而非強制性。根據Longman Dictionary of Contemporary English的釋義,當主語為無生命物體時,隻能用need to do結構,如:"The system needs to reboot"(系統需要重啟)。
該短語在COCA語料庫(當代美國英語語料庫)中的使用頻率達每百萬詞頻327次,顯示其作為核心表達的地位。實際應用中需注意:第三人稱單數需加-s,否定疑問需借助助動詞,時态變化通過need本身實現。
“need to do”是一個常見的英語短語,其核心含義是“需要做某事”,表示“有義務、必要性或責任去完成某個動作”。以下是詳細解析:
You need to study for the exam.(你需要為考試複習。)
Need I go now?(情态動詞,正式用語)
You needn’t worry about it.(情态動詞,否定形式)
Do you need to leave so early?(實義動詞疑問句)
Plants need to get sunlight to grow.(植物需要陽光生長。)
We need to submit the report by Friday.(周五前必須提交報告。)
You need to check your email regularly.(建議對方及時查郵件。)
She needed to explain the situation.
We will need to confirm the details later.
❌ He need to go.(應為實義動詞:He needs to go 或情态動詞:He need not go)
The car needs washing = The car needs to be washed.
“need to do”強調主動、具體的必要性,適用于大多數日常和正式場景。需注意其與情态動詞“need”的語法差異,避免混淆。
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