1d 2c 3d 4a 5b 6c 7a 8a

Hai chất điểm rơi tự do từ các độ cao  h 1 , h 2 . Coi gia tốc rơi tự do của chúng là như nhau. Biết vận tốc tương ứng của chúng khi chạm đất là v 1 = 3 v 2  thì tỉ số giữa hai độ cao tương ứng là

A.  h 1 = 4 h 2 .

B. h 1 = h 2

C.   h 1 = 9 h 2

D.  h 1 = 3 h 2

With fast growth of civilization there is also an ever mounting need for energy. Energy may be in the form of fuels or electricity. Petrol is a liquid fuel which is used widely nowadays. But this kind of fuels is likely to be exhausted at the rate man is using it recently.

To meet the challenge, various methods have been suggested. One is to minimize the man’s demand in using the energy. Non-essential consumption should be minimized. During certain days of the year, people all over the world turn off the electricity for 1 hour to save the energy. Modern gadgets consuming energy should only be used when they are absolutely necessary.

Energy conservation is possible through modernization of plant and equipment. People should replace the obsolete equipment by the modern ones.

Energy can be saved on transport by the following methods. People should commute by the rail rather than by cars and vans. The transport must be improved with a view to sparing the energy. Cities must be planned in such a way that the commuting distance from this place to others is minimized.

In industry, many things could be done to reduce waste of energy or to economize energy. The machine maintenance needs to be tightened; heater must be utilized properly. When systems are streamlined, economy in fuel is obvious. Instead of using materials requiring higher energy, those which require lower energy should be used.

We hope man with his ever rising urge for existence will cope up with this urgent problem and find alternatives.

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2/

This week I’m going to talk about the festival of Christmas in Britain. When you do your speaking exams, whether it’s IELTS or Cambridge exams, you are sometimes asked to describe a festival in your country and I think Christmas is probably the main festival really overall in Britain every year, so you can see my sample answer below. And also in the Audio Word Study you will find some useful phrases for talking with your friends, your neighbours and your colleagues over the Christmas and New Year periods. Below that you can also find out all the topics coming soon in our DailyStep Subscriber Audio lessons.

If you are new to DailyStep and you would like to be on our mailing list and also have 5 free lessons, please register. You can also subscribe if you would like to receive 5 Daily Lessons per week and if you would like to make some extra money recommending DailyStep to your friends, your colleagues and your students, then you can join our Affiliate Program.

1/I have seen a film on TV and it makes me a special impression impressed especially. And this film gets 11 Oscar’s award. Do you guess this film ?????^___^
The film talks about a love-story of two main characters on the fatal ship, those they (người mà)are JACK and ROSE. Jack is a countryman, opposite Rose is a girl of noble birth.Two people, two different classes but the love joins them together.

Next, the movie magic in the film also makes me so astonished and interested. A big ship with thousands of people on it , suddenly knock against a ice block, is broken and gradually sink into the ocean, with the screams of many people. This is my favorite part of the movie and is also the best scene in the film.
I like this film, not only the content of film , but also the performances, especially the soundtrack of the film. The title of this one is MY HEART WILL GO ON , a good song is played by singer : Celine Dion.

This movie is very well done and I have nothing bad to say about this movie. The title of this movie is TITANIC.

1. Our house was built two years ago
2.New clothes are often bought for our children on tet by us.

It was 2 years ago when I went for a picnic. My cousin planned the entire trip and we went to a place which was near the lake. He had visited the place about earlier and he liked it very much so he convinced me to go over there. The trip was just mind blowing from the beginning to the end.
We sat in the car at 9 am and it was a 4 hour drive from my home. We were a total of 5 people and we went to the place. As we reached the place we started cooking food as we were feeling very hungry. The place was looking so beautiful at night. There was a certain kind of reflection which the lake was putting on the land which was around it. I do not know what instigated me to do so but I swam in the lake. It was so cold over there and I even caught cold because of the cold weather.
I would say that overall the trip was very good. The main reason was that I was able to spend some quality time with my cousins and I was also able to live some time peacefully without any noise. I am even planning to trip like this in near future and this time I am the one convincing other people to go with me. I have been able to realize that in order to plan an enjoyable trip one does not have to spend so much money, it is just about finding the right place and right time.

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1.d 2.a 3.b 4.d 5.b 6.c 7.a 8.b 9.b 10.d 11.a 12.c 13.c 14.a 15.a 16.b 17.c 18.a 19.c 20.d

Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction

Pointing in someone is usually considered impolite but it is acceptable when a teacher wants to get someone’s attention in class

A. Pointing in

B. impolite

C. when

D. to get