Lý thuyết và 100+ bài tập When While có đáp án (PDF tải xuống)

Tổng hợp lý thuyết về When & While

Cách sử dụng When & While

When – “Khi”

• Dùng để chỉ một thời điểm cụ thể hoặc một hành động xảy ra trong khoảng thời gian ngắn.
• Thường đi với thì quá khứ đơn nếu diễn tả hành động ngắn xảy ra trong quá khứ.
• Khi diễn tả hai hành động trong quá khứ, when thường kết hợp với quá khứ đơn và quá khứ tiếp diễn.

• When + quá khứ đơn, quá khứ tiếp diễn → Hành động đang xảy ra thì một hành động khác xen vào.
• Quá khứ tiếp diễn + when + quá khứ đơn → Tương tự cách trên nhưng đảo vị trí.

• I was watching TV when she called me. (Tôi đang xem TV thì cô ấy gọi.)
• When he arrived, we had already finished dinner. (Khi anh ấy đến, chúng tôi đã ăn tối xong.)

While – “Trong khi”

• Dùng để diễn tả hai hành động xảy ra cùng lúc trong một khoảng thời gian.
• Thường đi với thì quá khứ tiếp diễn nếu cả hai hành động đang diễn ra đồng thời.

• While + quá khứ tiếp diễn, quá khứ tiếp diễn → Hai hành động xảy ra song song.
• Quá khứ tiếp diễn + while + quá khứ tiếp diễn → Đảo vị trí nhưng ý nghĩa không thay đổi.

• I was listening to music while doing my homework. (Tôi đang nghe nhạc trong khi làm bài tập.)
• While she was cooking, I was setting the table. (Trong khi cô ấy nấu ăn, tôi dọn bàn.)

So sánh When & While

Một số lưu ý khi dùng When & While

• When có thể được dùng với hiện tại đơn để diễn tả một sự việc xảy ra thường xuyên hoặc một quy luật chung.
  • When water boils, it turns into steam. (Khi nước sôi, nó biến thành hơi nước.)
• While có thể đi với hiện tại đơn để diễn tả một hành động xảy ra đồng thời trong hiện tại.
  • She listens to music while she studies. (Cô ấy nghe nhạc trong khi học.)
• Nếu when đi kèm với quá khứ đơn, nó có thể mang ý nghĩa ngay sau khi.
  • When I opened the door, the cat ran out. (Khi tôi mở cửa, con mèo chạy ra ngoài ngay lập tức.)

Bài tập When While có đáp án

Bài tập When While số 1

1. I was doing my homework ____ my friend called me.
2. ____ we were having dinner, the doorbell rang.
3. She was walking in the park ____ she saw an old friend.
4. ____ they were playing football, it started to rain.
5. The baby was sleeping ____ the mother was cooking.
6. I heard a loud noise ____ I was watching TV.
7. The power went out ____ we were studying.
8. ____ he was listening to music, his phone rang.
9. I was riding my bike ____ I saw a cute dog.
10. ____ she was talking to her friend, she dropped her phone.

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Bài tập When While số 2

1. The teacher entered the classroom (when/while) the students were chatting.
2. I was drinking coffee (when/while) my friend arrived.
3. (When/While) I was driving to work, I saw an accident.
4. I fell asleep (when/while) I was reading a book.
5. She was cooking (when/while) he was setting the table.
6. We were waiting for the bus (when/while) it started to rain.
7. I was watching TV (when/while) my brother was playing video games.
8. My phone rang (when/while) I was in the shower.
9. (When/While) they were dancing, the music suddenly stopped.
10. He was walking home (when/while) he saw a lost puppy.

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Bài tập When While số 3

1. ______ I was writing an email, my computer crashed.
2. We were eating lunch ______ the phone rang.
3. ______ she was watching a movie, her mom called her.
4. He was running in the park ______ he tripped over a rock.
5. ______ we were playing soccer, it started to rain.
6. The kids were laughing ______ the teacher entered the room.
7. ______ she was walking to school, she saw a rainbow.
8. I was talking on the phone ______ the battery died.
9. The cat was sleeping ______ the dog was barking.
10. ______ they were traveling, they took a lot of photos.

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Bài tập When While số 4

1. She was running in the park. She twisted her ankle. →
2. I was eating dinner. The lights went out. →
3. He was reading a book. His friend arrived. →
4. We were watching TV. It started to rain. →
5. My mom was cooking. My dad was washing the dishes. →
6. They were driving home. They saw an accident. →
7. I was playing video games. My mom asked me to do my homework. →
8. We were having breakfast. My sister spilled her juice. →
9. The baby was crying. The mother was preparing milk. →
10. I was listening to music. My friend called me. →

1. She was running in the park when she twisted her ankle.
2. I was eating dinner when the lights went out.
3. He was reading a book when his friend arrived.
4. We were watching TV when it started to rain.
5. While my mom was cooking, my dad was washing the dishes.
6. They were driving home when they saw an accident.
7. I was playing video games when my mom asked me to do my homework.
8. We were having breakfast when my sister spilled her juice.
9. While the baby was crying, the mother was preparing milk.
10. I was listening to music when my friend called me.