【It（is及及hellip及that英语句型系列补充强化训练）】在英语语法中，"It is ... that ..." 是一个非常常见且重要的强调句型。它用于突出句子中的某个成分，如时间、地点、人物、原因或方式等。掌握这一句型不仅有助于提高语言表达的准确性，还能让写作和口语更加地道、自然。
本系列训练旨在帮助学习者深入理解并灵活运用 "It is ... that ..." 句型，通过不同语境下的练习，逐步提升对这一结构的掌握程度。
一、基本结构解析
"It is + 被强调部分 + that + 其余部分"
例如：
- It is John that called me last night.
（是约翰昨晚给我打电话的。）
- It was in the library that I met her.
（就是在图书馆我遇见她的。）
- It is because of the rain that we stayed home.
（是因为下雨，我们才待在家里。）
二、常见被强调成分
1. 人：It is he that knows the answer.
2. 时间：It was at 8 o'clock that the meeting started.
3. 地点：It is in the park that I lost my keys.
4. 原因：It is because of his hard work that he succeeded.
5. 方式：It is by studying every day that she passed the exam.
6. 数量/程度：It is only five minutes that we have been waiting.
三、强调句型与普通句型的区别
| 普通句型 | 强调句型 |
|----------|-----------|
| She gave me a gift. | It is a gift that she gave me. |
| He left early. | It was early that he left. |
| They went to Paris. | It is Paris that they went to. |
注意：强调句型不能用 “who” 或 “which”，只能用 “that”。
四、常见错误及纠正
1. ❌ It is John who called me.
✅ It is John that called me.
（“who” 用于指人时，一般用于定语从句，而强调句型中应使用 “that”。）
2. ❌ It was in the school where I studied.
✅ It was in the school that I studied.
（“where” 用于定语从句，强调句型中应使用 “that”。）
五、综合练习题（附答案）
1. 将下列句子改为强调句型：
He did the homework by himself.
→ It is by himself that he did the homework.
2. 改写句子，强调地点：
We met at the station.
→ It was at the station that we met.
3. 强调原因：
She failed the test because she didn’t study.
→ It is because she didn’t study that she failed the test.
4. 强调时间：
They arrived at 9:00.
→ It was at 9:00 that they arrived.
5. 强调方式：
He solved the problem quickly.
→ It is quickly that he solved the problem.
六、拓展应用
除了基本的强调句型外，还可以结合其他句型进行变化，如：
- It is not until... that...（直到……才……）
- It is not until 10 o’clock that she came back.
- 直到十点她才回来。
- It is no wonder that...（难怪……）
- It is no wonder that he is tired.
- 难怪他累了。
这些句型可以帮助你更丰富地表达思想，使语言更具表现力。
七、总结
"It is ... that ..." 是一种非常实用的句型，能够有效突出句子中的关键信息。通过不断的练习和积累，你可以逐渐掌握其用法，并在实际交流中灵活运用。希望本系列训练能为你的英语学习提供帮助，祝你在学习中不断进步！
