NGỮ VĂN LỚP 11 THÌ TỰ MÀ LM Ở ĐÂY ÉO BIẾT 

1. Be quiet! The baby (sleep) ___is sleeping____________

2. The sun (set) ___sets____________ in the West

3. Mr Green always (go) __goes_____________ to work by bus.

4. It (not rain) ___doesn't rain____________ in the dry season.

5. They (have) ___are having____________ lunch in the cafeteria now.

6. She ______will go_________ (go) camping tomorrow.

7. The doctor sometimes (return) ___returns____________  home late.

8. He (write) ___is wriiting____________ a long novel at present.

9. Look! The bus (come) ___is comming____________

10. The earth (move) ___moves____________ around the sun.

11. What will you (do) _____do__________ at 8 p.m yesterday?

12. His uncle (teach) __has taught_____________ English in our shool five years ago.

13. The old man (fall) __fell_____________as he (get) _____got__________ into the bus.

14. When I saw him, he (sit) ___was sitting____________ asleep in a chair.

15. She _____will visit__________ (visit) her aunt next week.

Dear Anne(Hà Lam).

I received your email last week, in which you asked me about my city New York in 2050. There are different ideas about this question. I thought it in a few days, and now I can give you two predictions.

Let's take a look at an optimis viewpoint. In 2050 New York will become a more liveable city than ever before for lots of reasons. The city authorities have built a very careful plan to promote self-driving electric taxis to deal with crowded public transport. In addition, the city dwellers are encouraged to use city's building roofs for gardens fertilised with compose in order to recycle rubbish and reduce pollution. The government will also build offshore windfarms to replace ageing electricity network.

On the other hand, pessimis people think that the city life won't be a safe place to live in because the government cannot control the use of guns, and therefore the crime rate will be higher. People's life will also continue to be threatened because of natural disasters such as floods, storms, earthquakes. The effects of global warming have great impacts on the city dwellers.

That's all about my answer to your question. I hope you will be satisfied with it, Nam.

Best wishes,

Wonie(Quyên)

tham khảo ạ

Dear Bich

Your last email asked me about my city Ha Noi in 2050. Well, but I'm busy and have no time to reply you soon. Today I am writing to you about that question. There are different ideas about this question. I thought about it in a few days, and now I can give you some predictions.

Let's take a look at optimis aspects. In 2050 Ha Noi will become a more modern city for lots of reasons. High technology has been applied in our lives. The robots will replace us for many jobs such as manufacturing, farming, etc. Smart cars which will be commonly used in the road. They will help human beings to decrease the accidents as well as traffic jams.

On the contrary, pessimis people think that the city life will be a dangerous place to live in because the environment is completely polluted. The effects of global warming have great impacts on the city dwellers, higher temperature in the summer and colder climate in the winter. There are a lot of means of transport so that emission from them cause air pollution. Our health will be threatened because of low air quality index.

That's all about my thoughts about your question. I hope you will be satisfied with it, Bich.

Best wishes,

Chau

Dear Peter

I received your email last week, in which you asked me about my city Ha Noi in 2050. There are different ideas about this question. I thought about it in a few days, and now I can give you two predictions.

Let's take a look at optimis aspects. In 2050 Ha Noi will become a more liveable city for lots of reasons. The city authorities have built a very careful plan to promote advanced technology to make greener motorbikes to deal with air pollution. In addition, the city dwellers are encouraged to make use of public transport system to reduce traffic jam. The government will also grow more trees and encourage people to use solar panels.

On the contrary, pessimis people think that the city life will be a dangerous place to live in because the government cannot control the use of private cars and motorbikes. Besides, they don’t believe that citizens will use public transports because this system in our city are aging and not upgraded regularly. It also take time to find a bus and go to the destination in spite of very short distance. People's life will also continue to be threatened because of pollution such as air pollution by burning fossil fuels, emission from cars and motorbikes, noise pollution from constructing buildings and sounding of transportations. The effects of global warming have great impacts on the city dwellers, higher temperature in the summer and colder climate in te winter.

That's all about my answer to your question. I hope you will be satisfied with it, Peter.

Best wishes,

Nga

 k mình nha bn CHÚC BN HỌC TỐT

a.Hàm số xác định 
<=> sinx # 0
<=> x # kpi

Điều kiện xác định của hàm số đã cho là: 

\(1-sinx>0\Leftrightarrow sinx< 1\).

Ta có hàm \(sinx\le1\)nên điều kiện xác định tương đương với \(sinx\ne1\)

\(\Leftrightarrow x\ne\frac{\pi}{2}+k2\pi,\left(k\inℤ\right)\).

Tập xác định: \(D=ℝ\backslash\left\{\frac{\pi}{2}+k2\pi,k\inℤ\right\}\).

k mình

nha 

pls đúng

kick cho mình nha

\(\sin\left(\frac{2x}{3}-\frac{\pi}{3}\right)=0\)

\(\Leftrightarrow\frac{2x}{3}-\frac{\pi}{3}=k\pi\left(k\inℤ\right)\)

\(\Leftrightarrow\frac{2x}{3}=\frac{\pi}{3}+k\pi\left(k\inℤ\right)\)

\(\Leftrightarrow x=\frac{\pi}{2}+\frac{3k\pi}{2}\left(k\inℤ\right)\)