Nowadays, media development has many positive influences in human’s life. People have lots of sources to get information and take entertainment such as television, radio, Internet, etc. but nobody can deny the importance as well as the benefits of reading books.

First, reading books helps us widen our knowledge. Vietnamese has a proverb which means that we should travel to broad our understanding, if we always stay at home with our mother, we will never be wise. However, nowadays, not only does reading books costs less money but it is also more comfortable than taking a trip. We just lie on the couch and comprehensive what is happening in the books. Thanks to the wide range of books such as science, literature, astronomy, archeology, biology, physics, etc. we can get information focus on our own fields as well as the others. The more books we have read, the more knowing we have obtained.

Secondly, reading books helps us improve our expression ability like writing and speaking. The writing style of some our favorite writers will affect ours. Especially, when we read foreign literature, we will not only know more about that country but also have chance to improve our reading skill, learn new words which can be used to better our essays.

Last but not least, reading books helps us relax after a hard-working day. It is also an interest for everybody who does not like to visit crowded places at the weekend. They like quiet atmosphere and do not want to disturb anybody so they consider books as their close friend. They meet their stories, their lives in books and they feel extremely sympathetic with the characters’ situations. Reading books makes them happy and relieve stress.

In conclusion, reading books is so important and has many benefits. It not only help us become more clever but also bring us happiness. Therefore, everyone should be encouraged to read books as much as possible.

Nowadays, the mobile phone plays a major role in our lives, which brings many benefits to us but also contains some drawbacks. Both these sides will discussed in this essay.

Generally, the mobile phone will certainly bring about a lot of advantages. First of all, the mobile phone is considered the quickest means of communication in our daily life, we can contact easily with our friends and our relative wherever by calling or sending messages. Second, the mobile phone is also a means of entertainment for people. We can listen to music and play games on mobile phone. Moreover, by using the latest apps for smartphones , we can access to the internet to watch Film and check our profile in social networks and update our status wherever we are. Final, If we have a smartphone in hand, our studying becomes more effective such as look up dictionary, find out many source of reference on internet which is useful for studying.

On the other hand, the mobile phone is also many disadvantage. First, telephone user become to addicted their mobile phone if they are too depends on it, moreover, the ability of human communication is limited if the mobile phone is more present in some event such as class meetings, on the bus, in the park…some people only focus on their phone without communicating. The use of mobile phones too much will make people take a lot of time , it not only influence on study results, makes students distraction but also it is cause of disease about eyes. Final, we shouldn't use mobile phone while we are driving because it can lead traffic accidents.

In conclusion, mobile phone is necessary for our modern lives today. However it is helpful or not , which depends on our ways of using it. It will be better if we use it true purpose and in an appropriate time.

The National Day 2/9 is the speacial day of our country. All of people are joyful, glad and have a lot of exciting plans like as : visitting Uncle’s Ho moselium, going to the movie theater or places of entertainment ... I just had a interesting trip in the Bat Trang pottery village on that day. But It must took two hours to go from here to there, therefore that juorney really made me very tired. We leaved at 6.30 am. It may be quite early. Because when we arrived there, a few stores still hadn’t opened yet. Finally we decided to go to the pottery nearly. Making pottery is the work which requires cleverness and creation. At the first time when I have seen the potters rotate the throwing and make potteries by their hand, I did think that it’s very simple to put the clay body on the turntable of throwing then control of your hand cleverly to create the shape you want. but I were wrong, in fact, if you‘re only careless a little your pottery’ll be out of shape. What a pity! I also tried to make a cup myself and it had never finished.
In the pottery, I sudden heard a sound “ Hi! Are you PTIT?” I looked up realizing that sound of Leo( another member of ELFs). That is real a interesting amazement in my trip. We had talked to each other happily.
After an hour, we went to paint statues. There were a lot of people like this art game. I must tried so much to get a sit and choose a statue I like best. Almost people concentraded all their mind on painting so much that they didn’t know everything around them. I chose a lovely frog. It seems to be quite like the one in my inventory of our forum. I painted it as carefullly as posssible. How hard the choice of colours was!. Eventualy, I made up my mind to paint the body’s frog in the green; the feet and hands in yellow, the mounth in red; the cheek in white and had more some red dots. Wao! I thought it was very cute!. I like it so much!. If you see it, you ‘ll certainly like it as me.
When we came back the the Bat Trang pottery market. There were a lot of people there. Most of the stores always crowed with buyers. The ceramic wares there were very plentiful and multiform which attractted the attention of domestic customs as well as international customs. With me the imperessional potteries were ceramic pictures, vases, bracelets, belt, ear-ring…and a lot of art statues which I had never seen before. There were many cute and lovely ceramic wares suitable of the girls. So It seems the girls like shopping there rather than the boys. I also bought a few lovely things made me pleasure. Speacial I bought a vase and a bundle of beautiful-decorated chopticks for my mother . I ‘m sure she ‘ll like it.
About 2 pm, we took a bus and come back home. That was a wonderful day. I’ll remember that interesting trip forever.

s When and where you went

s How you got there

s Who you went with

s What the place was like

s What you did there

……………………

……………………

s Your impression of the place

\(-3<\frac{a}{6}<\frac{1}{3}\) => \(-\frac{18}{6}<\frac{a}{6}<\frac{2}{6}\)=> -18<a<2

=> a la { -17 ; -16 ; -15 ; ... ; 0 ; 1 }

=> a co : [ 1 - (-17) ] :1 +1 = 19 ( phan tu)

Vay: a co 19 gia tri thoa man

Diện tích hình thoi bằng một nửa diện tích hình chữ nhật. Tính chu vi hình chữ nhật

Goi x,y,z lan luot la so ca ma 3 anh thu 1,2,3 cau duoc. Theo de ta co:

x = (x+y+z-1):3

y = (x+y+z - x - 1) : 3  => y= (y+z-1):3

z=(x+y+z-x-y - 1):3  => z=(z-1):3

=> x+y+z = (x+y+z-1):3 + (y+z-1):3 + (z-1):3

               = 1/3.( x+y+z-1+y+z-1+z-1)

               = 1/3.( x+2y+3z-3)

               = \(\frac{x}{3}+\frac{2}{3}y+z-1\)

=> x+y+z = \(\frac{x}{3}+\frac{2}{3}y+z-1\)

=> x-x/3+y-2/3y+z-z = -1

=> 2/3 x + 1/3 y = -1

=> 2x + y = -3

Vi so ca khong the la am nen ca 3 anh deu khong cau duoc con ca nao