ko biieets

1. Minh does morning exercises regularly. He wants to be healthy ( so as to )

…… Minh does morning exercises regularly so as to be healthy……………………………………………………………………………………..

2. I’m learning English. I want to read book in English. (in order to)

…… I’m learning English in order to read book in English.…………………………………………………………………………………….

3. She said nothing . She didn’t want to make him angry (so as to)

……She said nothing so as not to make him angry……………………………………………………………………………………

4.The man was taken to the local hospital. He was injured in the accident. (past participle)

………The man taken to the local hospital was injured in the accident…………………………………………………………………………………..

5. The musician is internationally famous. He appeared in the concert last night. (present participle)

…………The musician appearing in the concert last night is internationally famous……………………………………………………………………………….

l having

giúp tui zớiiiii

1. Playing tennis is one of his favorite activities .

(ACT)

2. We started our trip on a beautiful  sunny morning.

(SUN)

3. They left the house in a frightening mess.

(FRIGHT)

4. He said “ Good morning” in a most  friendly way.

(FRIEND)

5. There is no easy solution to this problem.

(SOLVE)

6. He always drives more carefully at night.

(CARE)

7. Does this arrangement suit you?

(ARRANGE)

8. He is a very skillful carpenter.

(SKILL)

1 with

2 off

3 to

4 in

6 between

7 up

9 in

Câu này có vẻ như đang cố diễn đạt ý "bố tôi nghĩ điều đó tốt cho sức khỏe". Để diễn đạt đúng và tự nhiên, bạn có thể chọn một trong các cách sau:

• My father thinks it's healthy. (Bố tôi nghĩ điều đó tốt cho sức khỏe.)
• My father thinks that is healthy. (Bố tôi nghĩ rằng điều đó tốt cho sức khỏe.)
• My father thinks it's good for health. (Bố tôi nghĩ điều đó tốt cho sức khỏe.)

Trong các lựa chọn này:

• "My father" là chủ ngữ (bố tôi).
• "thinks" là động từ (nghĩ).
• "it's healthy" hoặc "that is healthy" hoặc "it's good for health" là phần bổ ngữ, diễn đạt điều bố bạn nghĩ.

Vì vậy, tùy thuộc vào ngữ cảnh, bạn có thể chọn một trong những câu trên.

father nhé

1. Lan said "I listen to music every day."
2. • Lan said that she listened to music every day.
3. Mai said "I don't go to school on Sunday."
4. • Mai said that she didn't go to school on Sunday.
5. They said "We didn't visit Sapa last week."
6. • They said that they hadn't visited Sapa the week before.
7. My teacher told me "You will take part in class team."
8. • My teacher told me that I would take part in the class team.
9. Tonny said "I am playing tennis now."
10. • Tonny said that he was playing tennis then.
11. They told me "We have gone to Dalat for two days."
12. • They told me that they had gone to Dalat for two days.
13. Nam said "I am happy today."
14. • Nam said that he was happy that day.
15. Minh told me "I can dance well."
16. • Minh told me that he could dance well.

1 Lan said she listened to music every day

2 Mai said she didn't go to school on Sunday

3 They said they hadn't visited Sapa the week before

4 My teacher told me I would take part in class team

1 C

2 D

3 B

4 A

5 B

II

1 C

2 B

\(NaOH+HCl\rightarrow NaCl+H_2O\)

   0,01          0,01          0,01         0,01

số mol dung dịch HCl là:

\(C_M=\dfrac{n_{HCl}}{V_{HCl}}⇒\:n_{HCl}=C_M\cdot V_{HCl}=0,2\cdot0,05=0,01\left(mol\right)\)

thể tích NaOH cần thiết để trung hoà là:

\(C_{M_{NaOH}}=\dfrac{n_{NaOH}}{V_{NaOH}}⇒\:V_{NaOH}=\dfrac{n_{NaOH}}{C_{M_{NaOH}}}=\dfrac{0,01}{0,1}=0,1\left(L\right)\)

Giải bài toán:

Dữ kiện:

• Thể tích dung dịch HCl: 50 ml = 0,05 l.
• Nồng độ HCl: 0,2 M.
• Nồng độ NaOH: 0,1 M.
• Phản ứng:
  \(\text{HCl} + \text{NaOH} \rightarrow \text{NaCl} + \text{H}_{2} \text{O}\).

Bước 1: Tính số mol HCl

Số mol HCl được tính theo công thức:

Bước 2: Tính số mol NaOH cần thiết

Theo phương trình phản ứng, \(n \left(\right. \text{NaOH} \left.\right) = n \left(\right. \text{HCl} \left.\right)\), vì tỉ lệ mol là 1:1.

Bước 3: Tính thể tích dung dịch NaOH

Thể tích dung dịch NaOH được tính theo công thức:

Đáp số:

Thể tích dung dịch NaOH cần thiết để trung hòa hết lượng HCl là 100 ml.