I.Dịch Việt Anh

1.Nước nóng thường bị mất nhiệt khi đi qua thiết bị sưởi

-Hot water often loses heat when passing through the radiation

2.Chức năng của trục khuỷu là gì?

- what is the function of a crankshaft?

3. cối xay gió có khả năng sinh công

- A windmill can make word

4. mọi người biết rằng thép mềm sử dụng cho mục đích chung

- everybody knows that mild steel is used for general poposes

5. nylon là 1 loại nhựa có ma sát thấp

- nylon is a plastic with low friction

6. có phải nước hà lan sản xuất nhiều thiếc nhất ko?

- Does holland produce the most tin?

7. có phải cặn biển trong hệ thống sẽ gây ra sự cố ko?

- do contaminants in the system cause engine trouble?

8. hầu hết các động cơ được làm mát bằng nước.

- most of the engines are cooled with water

Viết lại câu:

1.We dad sufficient supplies to last 3 days.

- our rapplies were suficent to lát 3 day

2. the instructions they has were inedequate

- they didn't have edequate instructions

3. The cost of the mechine was excessive

- It cost excessively to buy the machine

4. the mechanical fitter consists of closely women metal screens or metalk disks

- the mechanical fitter is made of closely women metal screens or metalk disks

5. The ozone layer of the earth's at most phere may break down because of burning forsit fuel

- burning fossil fuel may made the ozone layer of the earth's at most phere may break down

6. The box can't slide down the slope because of the friction force

- the friction force prevent the box from sliding down the slope

7. Machanisms also allow us to use escalator lifts or travel in cars

- Machanisms also make it possible for to use

8. I nuctive absorbent filters have the ability to remove water and water soluble contaminants

- I nuctive absorbent filters can remove water and water soluble contaminants

Chia động từ:

1. many years ago, people started (use) con crete...

- use- to use/using

2. you (think) people use very highly polished materials (reduc) fiction?

- Do you think people .........materials to reduc friction?

3. A moving object (be) capable of (exert) a for..

- Be- is; exert - exerting

4. I (be) possible to reduce friction by (use) plastic?

- Is it possible ...by using plastic?

5. Robots ( can employ) in dangerous conditions

- Robots can be em ployed in.........................

6. concrete (make) from 3 different materials so far?

- Has concrete been made from.................

7. since 1907 many plastics (discover) by experts

-......................plastic have been discovered by...

8. The system (repair) by a mechanis now

- Is the system bying repaired by......

9. oil floor (must/clean) before we (place) a ledder

- ...........must be cleand ..........place........

10.pollution (can/reduce) by lead free fuel (petrol)?

-can polution be reduce by ...................petrol?

11. the first electric elevator (build/in 1880)?

- Was the first......elevator build in 1880?

12.between 1925 and 1955 the use of electricity (increase) by 4%

..........increased......

13. the use of plastic (be come) more and more....

- .......has become..........

14. they (make) agreat ...................

- Are they making .....................

15. since 1950 the use of coal (decline) rapidly

...................................has declined.....

16. During the next ten years we probally (find) a new material....

- ...we will probally find a....................

17. he (develop) the fist .......?

- Did he develop the fist........?

18. Yesterday the driver (put) mo petrol when he (see) the....

- Put- saw; see-see

19.steel is one of the metal produced by man and it (use) for......

............................................it has been used for...

20. chemists (work) with iron years ago?

-did chemist work with...................?

21. Diesel trains (seplace) steam....

....................seplaced....

22. when water (get) very cold it (freeze) and.....

- get- gets; freeze- freezes

23. driver always (use) lights to see at hight and to let other cars (know)...

.......................

-use/know

24.slientists (word) with themo......

- Did slientists word.......

25. since 1907 a new material (invent) by expert . It (be) plastics

- ...............materrial has been invent by expert. It is plastics

26. In this well at the depth of 2 metres the heart (be) hight enough (boil) eggs

- ..........the heart is hight enough to boil eggs

27. The burner (mend) by a mechanic new?

- Is the burner being mended?

28. Yesterday when the mechanic (see) the red light in the fuel speedometer he (fill) it with petrol

- see-saw; fill-filled

29. for many years , Japanese people (manufacture) many diferent.......

- ... .............people have manufactured many diferent....

30. We ( build ) a new nuclear power plant in the future

- we will build a new...

31. You (be lieve) that scientists can fund ways (make) friction (be come) zero?

- Do you be lieve that............ways to make friction be come ze ro?

32. friction (use) as a help is many machines ever since

- friction has been use as a............

33. Dirty substances (must clean) before they (start) the machine

- ................must be clean ....they start...............