Английский язык. Ильичева Н.А - 11 стр.

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F: Don’t forget about the reaction time of the driver: the time between your
decision to apply the brakes and their actual e) ……. . Let’s calculate the f) …...
right now assuming that your reaction time is 0.5 s and the road is dry.
J: All right. If I g) ……. 0.5 s by 28 m/s (100 km/h) I’ll get 14 metres, which is
the distance my car travels during my reaction time until I put on the brakes.
F: Now we should find the distance during which the brakes are applied and the
car is brought to rest.                     v2 – v02
J: I think I’ll use the equation ( x = x0 +           ) to h) ……. the whole
                                                2a
                                      0 – (28 m/s)2           - 784 m2/s2
distance. Then we’ll get ( 14 m +                    = 14 m +             = 14 m +
                                        .          2                   2
                                      2 (-6.0 m/s )            - 12 m/s
+ 65 m = 79 m) 79 metres. Oh, I’ve never expected it to be so long.
F: It will be even longer under wet or icy i) ……. . Then the value of a (a
means acceleration) may be only one third of the value for a dry road since the
brakes cannot be applied as hard without skidding.
J: You really sound convincing, Dad. I think I’ll be more careful on the road.

Grammar in Use

                        Present Simple – Present Continuous

18. Identify the tenses in bold (1-6), then match them with the correct tense
   description (a-g).
1. Slow down! You are driving too fast.
2. Vector quantities give more information than scalar quantities.
3. I usually go away at weekends.
4. You are always forgetting to pay the bills.
5. The population of the world is rising very fast.
6. His flight leaves at 9.00 a.m.
7. He is going to London next week.

a)   changing situations;
b)   future arrangements;
c)   irritation;
d)   actions happening right now;
e)   scheduled actions (timetables);
f)   general truths (laws of nature);
g)   repeated actions.

19. Make the statements with doesn’t or don’t where necessary.
1. The Earth / rotate / on its axis.
   The Earth rotates on its axis.