Unit 3: Healthy Living for Teens
A Closer Look 2
Nhìn sâu 2 - Ngữ pháp: Câu điều kiện loại 1 với động từ khuyết thiếu.
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A Closer Look 2 - Grammar Focus
11. Conditional Type 1 with Modal Verbs
Cấu trúc: If + S + V (present simple), S + modal verb + V (infinitive)
| Modal | Meaning | Example |
|---|---|---|
| can | có thể (khả năng) | If you eat well, you can be healthy. |
| may/might | có thể (không chắc) | If you skip meals, you may feel dizzy. |
| should | nên (lời khuyên) | If you are tired, you should rest. |
| must/have to | phải (bắt buộc) | If you are sick, you must see a doctor. |
22. Unless = If not
| Structure | Example |
|---|---|
| Unless + S + V, S + modal + V | Unless you exercise, you can't be fit. |
| = If + S + don't/doesn't + V, S + modal + V | If you don't exercise, you can't be fit. |
33. Practice Examples
Example 1 (can): If you exercise regularly, you can stay fit. → can + V = có thể
Example 2 (may): If you don't sleep enough, you may feel tired. → may + V = có thể (không chắc)
Example 3 (should): If you feel stressed, you should relax. → should + V = nên (lời khuyên)
Example 4 (must): If you are sick, you must see a doctor. → must + V = phải (bắt buộc)
Example 5 (unless): Unless you eat healthy, you may get sick. → Unless = If not