示例: You must go now.(你现在必须走。) She can swim very well.(她游泳游得很好。) 使役动词后: 常见的使役动词(如 make、let、have 等)后面接裸不定式。
示例: She made him do his homework.(她让他做作业。) I let her go.(我让她走了。) 感官动词后: 感官动词(如 see、hear、feel、watch、notice 等)后面也接裸不定式。
示例: I saw him leave the house.(我看见他离开了房子。) They heard the baby cry.(他们听到婴儿在哭。) 某些特定句型中: 在某些特定句型中,如 "had better"、"would rather"、"would sooner" 等短语后,通常接裸不定式。
示例: You had better take an umbrella.(你最好带把伞。) I would rather stay at home.(我宁愿呆在家里。) 裸不定式与全不定式的比较 裸不定式和全不定式在形式上有明显区别,但在意义和使用上有时会相互影响。通常,全不定式用于表示动作的目的、原因或结果,而裸不定式则多用于特定的语法结构中,如上述例子。
全不定式示例: She went to the library to study.(她去图书馆学习。) I need a pen to write with.(我需要一支笔来写字。)
- Good at: 通常用来描述某人在某项活动、学科或技能方面的能力。例如,如果某人擅长数学,你可以说 "She is good at math." - Good with: 通常用来描述某人在处理事物、与人相处或使用工具时的能力。例如,如果某人擅长与孩子相处,你可以说 "He is good with children."
在英语中,有几种情况可以省略不定式中的介词“to”。以下是几种常见的情况: 1. 某些动词后接不定式省略“to”: - help: She helped me (to) finish the project. - make: They made her (to) cry. - let: Let him (to) go. - have: I'll have him (to) call you. - see, hear, feel, watch, notice 等感官动词: I saw him (to) leave. 2. 某些固定短语或表达中: - had better: You had better (to) leave now. - would rather: I would rather (to) stay home tonight. - why not: Why not (to) try again? 3. 在动词后接带“to”的不定式作为宾语补足语时: - The teacher made the students (to) stay after school. - They saw him (to) climb the tree. 4. 在“do”动词的祈使句中: - Do (to) be careful! - Do (to) come in! 这些情况中,不定式中的“to”可以省略,使句子更加简洁,但语义依然明确。
在英语中,描述自己穿着衣服时,有两种常见的表达方式:“I am in” 和 “I have on”。它们之间有一些细微的差别: I am in 用法: “I am in” 后面通常跟衣服的类型、颜色或风格。 例子: I am in a blue dress. I am in jeans and a t-shirt. I am in formal attire. 语感: 这种表达方式通常用来描述我们目前所穿的衣服,强调的是我们处于这种状态之中。 I have on 用法: “I have on” 后面跟的是我们所穿的具体衣物,可以是单件也可以是几件衣服。 例子: I have on a blue dress. I have on a pair of jeans and a t-shirt. I have on my new shoes. 语感: 这种表达方式更具体,强调我们穿着某件衣物,通常用于特别指出我们穿着什么。 差异总结 “I am in” 更加抽象,描述一种状态或者整体的着装风格。 “I have on” 更加具体,描述具体的衣物。 例如,如果我们说 “I am in a suit”,这意味着你穿着一套西装,强调的是我们的整体穿着风格。如果我们说 “I have on a suit”,则强调的是我们穿着具体的这套西装。 尽管两种表达都可以互换使用,但根据上下文不同,它们可能会传达出稍微不同的意味。
leave for 和 leave to 都是表示“离开”的短语,但它们之间有一些细微的差别。 leave for 通常用于表示某人离开某个地方前往另一个地方。例如: I'm leaving for work at 8:00 AM. (我早上8点去上班。) The train leaves for New York at 10:00 PM. (火车晚上10点开往纽约。) leave to 通常用于表示某人离开某个地方去做某事。例如: I'm leaving to go to the store. (我去商店。) She left to catch her flight. (她去赶飞机。) leave for 还可以用于表示某人离开某个地方去度过一段时间的含义。例如: I'm leaving for vacation next week. (我下周去度假。) She's leaving for college in the fall. (她秋天去上大学。) leave to 还可以用于表示某人离开某个地方去完成某个任务的含义。例如: The doctor left to perform surgery. (医生去手术了。) The committee left to decide on the next steps. (委员会去决定下一步。) 总而言之,leave for 通常用于表示某人离开某个地方前往另一个地方或去度过一段时间的含义,而 leave to 通常用于表示某人离开某个地方去做某事或去完成某个任务的含义。