
现在进行时的思维导图
## 《现在进行时的思维导图》
**中心主题:现在进行时 (Present Continuous/Progressive)**
**一、 构成 (Formation)**
* **主语 + be (am/is/are) + 动词-ing**
* **例子:**
* I am eating.
* He is studying.
* They are playing.
* **“be” 动词的选择**
* **am:** 用于主语 I
* **is:** 用于主语 he, she, it 以及单数名词
* **are:** 用于主语 you, we, they 以及复数名词
* **动词-ing 形式的构成规则**
* **一般情况:** 直接在动词后加 -ing (e.g., play -> playing, work -> working)
* **以不发音的 e 结尾的动词:** 去掉 e 后加 -ing (e.g., take -> taking, write -> writing)
* **例外:** be -> being, see -> seeing
* **以一个辅音字母结尾的重读闭音节动词:** 双写辅音字母后加 -ing (e.g., run -> running, swim -> swimming, get -> getting)
* **注意:** 辅音字母是指除 a, e, i, o, u 之外的字母。
* **重读闭音节** 指的是以辅音字母结尾,且最后一个元音字母发短促音的音节。
* **以 ie 结尾的动词:** 将 ie 改为 y 后加 -ing (e.g., lie -> lying, die -> dying, tie -> tying)
**二、 用途 (Uses)**
* **正在发生的动作 (Action in Progress):** 描述说话时或一段时间内正在进行的动作。
* **例子:**
* The children are playing in the garden now.
* I am reading a very interesting book these days.
* **临时的状态或活动 (Temporary Situations or Activities):** 描述暂时性的状态或活动,与通常情况不同。
* **例子:**
* She is living with her parents temporarily.
* He is working as a waiter this summer.
* **计划好的未来动作 (Planned Future Actions):** 描述已安排好的、即将发生的未来活动,通常与时间状语连用。
* **例子:**
* I am meeting John tomorrow.
* We are going to the cinema tonight.
* **表达情感或抱怨 (Expressing Emotion or Complaint):** 描述重复发生的、令人厌烦的动作,通常与 always, constantly, forever 等词连用,表达说话者的不满或恼怒。
* **例子:**
* He is always complaining about everything.
* You are constantly interrupting me!
* **状态动词的特殊用法 (Stative Verbs):** 通常状态动词不用进行时,但在某些情况下可以,表达动态过程。
* **状态动词:** 描述状态、感觉、想法、拥有等的动词 (e.g., believe, know, love, hate, want, own, seem, appear)。
* **用法例子:**
* **think:** 思考 (动态) vs. 认为 (静态)
* I am thinking about what to do next. (思考)
* I think he is right. (认为)
* **see:** 看 (动态) vs. 明白 (静态)
* I am seeing a doctor tomorrow. (看医生)
* I see what you mean. (明白)
* **taste:** 尝 (动态) vs. 尝起来 (静态)
* I am tasting the soup. (尝)
* The soup tastes good. (尝起来)
* **发展变化 (Changing or Developing Situations):** 描述正在发生的变化或发展。
* **例子:**
* The climate is changing rapidly.
* Your English is improving.
**三、 时间状语 (Time Expressions)**
* **now:** 现在
* **at the moment:** 此刻
* **at present:** 目前
* **these days:** 这些天
* **this week/month/year:** 本周/月/年
* **today:** 今天
* **tonight:** 今晚
* **still:** 仍然
**四、 否定形式 (Negative Form)**
* **主语 + be (am/is/are) + not + 动词-ing**
* **例子:**
* I am not working.
* He is not playing.
* They are not studying.
* **缩写:**
* is not -> isn't
* are not -> aren't
**五、 疑问形式 (Interrogative Form)**
* **Be (Am/Is/Are) + 主语 + 动词-ing?**
* **例子:**
* Am I working?
* Is he playing?
* Are they studying?
* **简短回答:**
* Yes, I am. / No, I am not.
* Yes, he/she/it is. / No, he/she/it isn't.
* Yes, you/we/they are. / No, you/we/they aren't.
* **特殊疑问句:**
* 疑问词 + be (am/is/are) + 主语 + 动词-ing?
* **例子:**
* What are you doing?
* Where is he going?
* Why are they crying?
**六、 注意事项 (Important Notes)**
* **避免与一般现在时混淆:** 现在进行时强调动作的进行,而一般现在时描述习惯、事实或真理。
* **某些状态动词通常不用于进行时:** 需要了解哪些动词属于状态动词,并在使用时格外小心。
* **根据上下文判断语境:** 同一个句子,不同的上下文可能表达不同的含义,需要根据语境判断。 例如, "He is seeing a doctor." 可以表示 "他正在看医生 (动作进行中)" 也可以表示 "他将去看医生 (未来计划)"。
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