Vì sao xương người già dễ gãy,bổ là gãy?

Bài 2: Phân tích các đa thức sau thành nhân tử

a, (x² -4)(x² -10)-72

b, (x+1)(x+2)(x+3)(x+4)+1

c, (x² +3x+1)(x²+3x-3)-5   

Nhận xét về tính chất và hướng gió của 2 loại gió mùa: Hướng gió mùa đông, Hướng gió mùa hạ? vì sao có tính chất đó?

Nhận xét về tính chất và hướng gió của 2 loại gió mùa: Hướng gió mùa đông, Hướng gió mùa hạ? vì sao có tính chất đó?

I) Choose the item among A,B,C or D that best answers the question about the passage.

       Living in the country is something that people from the city often dream about.However, in reality, it has both advantages and disadvantages.

       There are certainly many advantages to living in the coutry.First, you can enjoy peace and quietness. Moreover, people tend t be friends.A further advantage is that there is less traffic, so it is safer for young children.

      However, there are certain disadvantages or drawbacks to life outside the city.First, because there are fewer people, you are likely to have few friends.In addition, entertainment is difficult to find, particularly in the evening. Furthermore, the fact that there are fewer shops and services means that it is hard to find jobs.

     In short,it can be seen that the country is more suitable for some people than others. On the whole, it is often the best for those who are retired or who have young children.In contrast, young people who have a career are better who have a career are better provided in the city.

1. According to the passage, living in the country has_________.

A. only good points                                        B. only bad points

C. both good and bad points                          D. no disadvantages

2. how many advantages does living in the country have?

A. Two                                                            B. There

C. Four                                                            D.No

3. Living in the country is safer for young children because_________.

A. there is less traffic                          B. there are few shops

Decide whether the statement is an advantage(A) or a disadvantage (D) of the nomadic life, and write the answer in the blank.Then practice the conversation about what you like or dislike about it.

1. A nomad constantly changes locations, switching from one place to another.           _______

2. It is hard to maintain a relationship.                                                                            _______

3. This constant process of change is a great learning experience, and when you learn, you become smarter.                                                                                                                           _______

4. Nomads don't take life very seriously, and they think about life very optimistically.    _______

5 You can learn to ride a horse from the early age, and travel everywhere by horse or camel. ______

6. Nomads think and adjust fast.                                                                                      _______

7. The basic understanding for nomads is that " everything is temporary and nothing is your". _____

8. Being a nomad, you never really have a feeling of real home.                                     ________

A. What do you like about the nomadic life?

B. Well,...........................................................................................

A. And what don't you like about it?

B.   ..................................................................................................

Decide whether the statement is an advantage(A) or a disadvantage (D) of the nomadic life, and write the answer in the blank.Then practice the conversation about what you like or dislike about it.

1. A nomad constantly changes locations, switching from one place to another.           _______

2. It is hard to maintain a relationship.                                                                            _______

3. This constant process of change is a great learning experience, and when you learn, you become smarter.                                                                                                                           _______

4. Nomads don't take life very seriously, and they think about life very optimistically.    _______

5 You can learn to ride a horse from the early age, and travel everywhere by horse or camel. ______

6. Nomads think and adjust fast.                                                                                      _______

7. The basic understanding for nomads is that " everything is temporary and nothing is your". _____

8. Being a nomad, you never really have a feeling of real home.                                     ________

A. What do you like about the nomadic life?

B. Well,...........................................................................................

A. And what don't you like about it?

B.   ..................................................................................................

Decide whether the statement is an advantage(A) or a disadvantage (D) of the nomadic life, and write the answer in the blank.Then practice the conversation about what you like or dislike about it.

1. A nomad constantly changes locations, switching from one place to another.           _______

2. It is hard to maintain a relationship.                                                                            _______

3. This constant process of change is a great learning experience, and when you learn, you become smarter.                                                                                                                           _______

4. Nomads don't take life very seriously, and they think about life very optimistically.    _______

5 You can learn to ride a horse from the early age, and travel everywhere by horse or camel. ______

6. Nomads think and adjust fast.                                                                                      _______

7. The basic understanding for nomads is that " everything is temporary and nothing is your". _____

8. Being a nomad, you never really have a feeling of real home.                                     ________

A. What do you like about the nomadic life?

B. Well,...........................................................................................

A. And what don't you like about it?

B.   ..................................................................................................