Mệnh đề danh từ (noun clause) là một nhóm từ có chức năng giống như một danh từ. Nó thường bắt đầu bằng các từ nối như “that,” “whether,” “if,” “who,” “whom,” “whose,” “what,” “when,” “where,” “why,” “how,” hoặc một số từ nghi vấn. Mệnh đề danh từ có thể được sử dụng như chủ ngữ, tân ngữ, hoặc bổ ngữ trong câu. Dưới đây là các ví dụ cụ thể:

1. Mệnh đề danh từ làm chủ ngữ

Mệnh đề danh từ có thể làm chủ ngữ của câu, thay thế cho một danh từ hoặc cụm danh từ.

Ví dụ:

• That she won the competition was a surprise to everyone. (Rằng cô ấy đã thắng cuộc thi là một sự ngạc nhiên đối với mọi người.)
• Whether we will go on a trip depends on the weather. (Liệu chúng ta có đi du lịch hay không phụ thuộc vào thời tiết.)

2. Mệnh đề danh từ làm tân ngữ

Mệnh đề danh từ có thể làm tân ngữ của động từ hoặc giới từ.

Ví dụ:

• She didn’t know what he was talking about. (Cô ấy không biết anh ta đang nói về cái gì.)
• We are concerned about whether he will be able to come. (Chúng tôi lo lắng về việc liệu anh ấy có thể đến được không.)

3. Mệnh đề danh từ làm bổ ngữ

Mệnh đề danh từ có thể làm bổ ngữ cho một tính từ hoặc danh từ trong câu.

Ví dụ:

• The problem is that we don’t have enough money. (Vấn đề là chúng tôi không có đủ tiền.)
• Her belief is that everyone deserves a second chance. (Niềm tin của cô ấy là ai cũng xứng đáng có cơ hội thứ hai.)

Dưới đây là 100 câu bài tập gap filling sử dụng mệnh đề danh từ làm chủ ngữ, tân ngữ và bổ ngữ trong tiếng Anh:

Chủ ngữ (Subject)

1. ________ was unexpected surprised everyone.
2. ________ makes me happy is his smile.
3. ________ she did last night was really strange.
4. ________ is unknown to me.
5. ________ matters most is our friendship.
6. ________ worries me is the lack of communication.
7. ________ will happen next is unpredictable.
8. ________ was a huge surprise to the team.
9. ________ remains a mystery.
10. ________ bothers her is the noise.

Tân ngữ (Object)

11. I don’t know ________ he went.
12. She wondered ________ to say.
13. They couldn’t decide ________ to go.
14. Tell me ________ you want.
15. We can’t predict ________ will happen.
16. She forgot ________ she left her keys.
17. He realized ________ he was late.
18. Do you remember ________ they arrived?
19. She can’t explain ________ she did that.
20. We discussed ________ happened yesterday.
21. He understands ________ you mean.
22. She admitted ________ she was wrong.
23. They debated ________ should be done.
24. We can’t ignore ________ he said.
25. He confessed ________ he took the money.
26. She didn’t believe ________ she heard.
27. They analyzed ________ went wrong.
28. We have to confirm ________ he is coming.
29. She never imagined ________ could happen.
30. They questioned ________ was true.
31. Do you know ________ he lives?
32. She wondered ________ to wear.
33. He asked ________ the meeting was.
34. They didn’t realize ________ was so late.
35. She considered ________ to do next.
36. He can’t decide ________ to choose.
37. We discovered ________ he lied.
38. They emphasized ________ was important.
39. She couldn’t believe ________ she saw.
40. We were unsure ________ to proceed.
41. He requested ________ we leave.
42. She noticed ________ he was gone.
43. They determined ________ was necessary.
44. We discussed ________ happened.
45. He figured out ________ was wrong.
46. She wondered ________ he was okay.
47. They couldn’t agree on ________ to start.
48. We focused on ________ is achievable.
49. He didn’t realize ________ was there.
50. She didn’t know ________ to trust.

Bổ ngữ (Complement)

51. The problem is ________ we don’t have enough money.
52. My concern is ________ he might not come.
53. The truth is ________ she never called.
54. His belief is ________ everyone deserves a second chance.
55. Their fear is ________ they will be late.
56. The fact is ________ we need more time.
57. Her worry is ________ it might rain.
58. The issue is ________ we lack resources.
59. His opinion is ________ it’s too risky.
60. The challenge is ________ we need more support.
61. The reality is ________ they are not ready.
62. Our goal is ________ we finish on time.
63. The assumption is ________ he will succeed.
64. Their hope is ________ peace will prevail.
65. The concern is ________ they won’t understand.
66. Her desire is ________ she can travel the world.
67. The question is ________ they can meet the deadline.
68. The risk is ________ we might fail.
69. The possibility is ________ we can win.
70. The expectation is ________ he will improve.
71. The fear is ________ we might lose.
72. The problem is ________ they don’t cooperate.
73. The focus is ________ we improve our strategy.
74. The answer is ________ we need to try harder.
75. The aim is ________ we achieve our goals.
76. The concern is ________ he might be hurt.
77. The reason is ________ we need more evidence.
78. The reality is ________ they won’t agree.
79. The objective is ________ we expand our business.
80. The fact is ________ we lack funds.
81. The conclusion is ________ we should delay the project.
82. The opinion is ________ she is very talented.
83. The plan is ________ we meet next week.
84. The goal is ________ we reduce costs.
85. The belief is ________ hard work pays off.
86. The truth is ________ she did her best.
87. The understanding is ________ they will arrive soon.
88. The concern is ________ we might be too late.
89. The expectation is ________ everyone will participate.
90. The worry is ________ he won’t recover.
91. The goal is ________ we exceed our targets.
92. The challenge is ________ we keep innovating.
93. The assumption is ________ he will join us.
94. The plan is ________ we launch next month.
95. The reality is ________ we need more time.
96. The concern is ________ she might resign.
97. The fact is ________ we need more data.
98. The goal is ________ we expand internationally.
99. The problem is ________ our budget is limited.
100. The belief is ________ teamwork leads to success.

Dưới đây là các câu với đáp án được in đậm:

Chủ ngữ (Subject)

1. That he failed the exam was unexpected surprised everyone.
2. What makes me happy is his smile.
3. What she did last night was really strange.
4. Why he left is unknown to me.
5. What matters most is our friendship.
6. What worries me is the lack of communication.
7. What will happen next is unpredictable.
8. That she got promoted was a huge surprise to the team.
9. Why they didn’t show up remains a mystery.
10. What bothers her is the noise.

Tân ngữ (Object)

11. I don’t know where he went.
12. She wondered what to say.
13. They couldn’t decide where to go.
14. Tell me what you want.
15. We can’t predict what will happen.
16. She forgot where she left her keys.
17. He realized that he was late.
18. Do you remember when they arrived?
19. She can’t explain why she did that.
20. We discussed what happened yesterday.
21. He understands what you mean.
22. She admitted that she was wrong.
23. They debated what should be done.
24. We can’t ignore what he said.
25. He confessed that he took the money.
26. She didn’t believe what she heard.
27. They analyzed what went wrong.
28. We have to confirm whether he is coming.
29. She never imagined that this could happen.
30. They questioned whether it was true.
31. Do you know where he lives?
32. She wondered what to wear.
33. He asked when the meeting was.
34. They didn’t realize that it was so late.
35. She considered what to do next.
36. He can’t decide which one to choose.
37. We discovered that he lied.
38. They emphasized what was important.
39. She couldn’t believe what she saw.
40. We were unsure how to proceed.
41. He requested that we leave.
42. She noticed that he was gone.
43. They determined what was necessary.
44. We discussed what happened.
45. He figured out what was wrong.
46. She wondered if he was okay.
47. They couldn’t agree on where to start.
48. We focused on what is achievable.
49. He didn’t realize that she was there.
50. She didn’t know whom to trust.

Bổ ngữ (Complement)

51. The problem is that we don’t have enough money.
52. My concern is that he might not come.
53. The truth is that she never called.
54. His belief is that everyone deserves a second chance.
55. Their fear is that they will be late.
56. The fact is that we need more time.
57. Her worry is that it might rain.
58. The issue is that we lack resources.
59. His opinion is that it’s too risky.
60. The challenge is that we need more support.
61. The reality is that they are not ready.
62. Our goal is that we finish on time.
63. The assumption is that he will succeed.
64. Their hope is that peace will prevail.
65. The concern is that they won’t understand.
66. Her desire is that she can travel the world.
67. The question is whether they can meet the deadline.
68. The risk is that we might fail.
69. The possibility is that we can win.
70. The expectation is that he will improve.
71. The fear is that we might lose.
72. The problem is that they don’t cooperate.
73. The focus is that we improve our strategy.
74. The answer is that we need to try harder.
75. The aim is that we achieve our goals.
76. The concern is that he might be hurt.
77. The reason is that we need more evidence.
78. The reality is that they won’t agree.
79. The objective is that we expand our business.
80. The fact is that we lack funds.
81. The conclusion is that we should delay the project.
82. The opinion is that she is very talented.
83. The plan is that we meet next week.
84. The goal is that we reduce costs.
85. The belief is that hard work pays off.
86. The truth is that she did her best.
87. The understanding is that they will arrive soon.
88. The concern is that we might be too late.
89. The expectation is that everyone will participate.
90. The worry is that he won’t recover.
91. The goal is that we exceed our targets.
92. The challenge is that we keep innovating.
93. The assumption is that he will join us.
94. The plan is that we launch next month.
95. The reality is that we need more time.
96. The concern is that she might resign.
97. The fact is that we need more data.
98. The goal is that we expand internationally.
99. The problem is that our budget is limited.
100. The belief is that teamwork leads to success.

Đọc thêm: Đại từ quan hệ xác định và không xác định.