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250
天
✅ 今日学习
2.2(5)洛必达法则 Part5
3h
词汇
80
基础语法16-虚拟语气
54min
🧾 计划
已完成
📒 笔记
| 条件从句 | If从句的谓语形式 | 主句的谓语形式 |
|---|---|---|
| 与现在事实相反 | did (were) | would/could/should/might+do |
| 与过去事实相反 | had done | would/could/should/might+have done |
| 与将来事实相反 | 1.did 2.Should do 3.Were to do | would/could/should/might+do |
- 宾语从句遇到(注意真实和非真实):
| 一"坚持"insist 二"命令"order/command 三"建议"suggest/advise/propose 四"要求"demand/require/request/ask | + that sb (should)do |
- in time 及时 / on time 准时
- 在主语从句中,虚拟语气用"should+动词原形"或省略should只用动词原型。这种主语从句用that引导,常用在以下三个句型中
- It is/was important/necessary/appropriate/proper/essential..that 意为"应该、必须"
- It is/was unnatural/unthinkable/strange/surprising/a surprise…tlnat 意为"竟然"
- It is/was suggested/requested/required/ordered/decided…that
- It is (high / about ) time that sb did/sb should do. (should不可以省)"是时候……(做某事)"
- 情态动词表虚拟：
| should/ought to have done | 过去本应该做某事却没做 |
| shouldn't/oughtn't to have done | 过去本不该做某事却做了 |
| need have done | 过去本有必要做却未做 |
| needn't have done | 过去本不必做某事却做了 |
| could have done | 过去本能够做某事却没做 |
📘 积累
- have words with… 与…争吵
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