Английский язык. Ч. 1. Ильичева Н.А - 4 стр.

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       5. Air serves as a…………to very light objects that have a large surface area.
(blockage, resistance, counteraction)
       6. In many ordinary circumstances air resistance is…………(negative, negligi-
ble, neglectful).
       7. For an object in uniform circular motion the acceleration is toward
the…………of the circle. (centre, core, nucleus)

        C. Fill in the correct word derived from the words in brackets.
        1. If …………effects can be disregarded, every freely falling object near The
Earth’s surface accelerates downward at the same rate. (friction)
        2. …………Is defined as the time rate of change of velocity. (accelerate)
        3. The terms velocity and speed are often used…………in ordinary language.
(interchange)
        4. …………is everywhere. (move)
        5. When an object is undergoing a …………change in position, we say the ob-
ject is moving. (continue)
        6. The velocity of a…………falling object increases 9.8 m/s each second.
(free)

       D. Choose the correct tense. (Simple present or present continuous).
       1. Tom and Mr. Pitt (have/ are having) a long conversation. I wonder what they
(talk/ are talking) about.
       2. Vegetarians are people who (don’t eat/ are not eating) meat.
       3. The last train (leaves/ is leaving) the station in at 11.30
       4. Some people still think that the sun (goes/ is going) round the earth.
       5. Look! She (wears/ is wearing) the same shoes as me.
       6. An alcoholic is a person who (drinks/; is drinking) too much alcohol and
can’t stop.
       7. I’m busy at the moment I (redecorate/ am redecorating) the sitting room.
       8. Who (sits/ is sitting) in my chair?
       9. You can’t see Tom now: He (has/ is having) a bath.
       10. Joan (weighs/ is weighing) 50 kilos.
       11. The dress (looks/ is looking) nice on you.
       12. Anna is Italian. She (comes/is coming) from Italy.

      E. Match the questions and answers:
       1. What do you do?                     a) Actually that’s the radio.
       2. What are you doing?                 b) French-she is from Belgium.
       3. Where do you work?                  c) I want to get this car started.
       4. Where are you working?              d) I’m an architect.
       5. Does your son play the violin?      e) I’m in Cardiff this week.
       6. Is your son playing the violin?     f) In a big insurance company.
       7. What language does she speak?       g) It sounds like Russian.
       8. What language is she speaking?      h) Me – can I have some more?
       9. Who drinks champagne?               i) Me, when can I afford it.
       10. Who’s drinking champagne?          j) No, the piano.