3. Read the text and choose the correct answer. Distance Learning: Advantages and Disadvantages
Nowadays, it seems that pressure to gain more qualifications to get better jobs has 1. many people to take up distance learning, by post or, more commonly, via the Internet. However, there are still more benefits to learning in a traditional classroom environment.
On the whole, 2. the increase in its popularity, I don't think that distance learning is 3. traditional classroom learning. Firstly, students have to be very dedicated and self-motivated to study by themselves and many students would find this difficult. Some people need more support in their studies than a tutor can give online or by post. 4. may miss the interaction with 5. students that always occurs in a traditional classroom.
But distance learning has some positive aspects,6. It can 7. in the privacy of one's own home. This allows people to fit their studying around their work schedules and the demands of 8.
life. It can also allow students to work without distractions from others and at their own place. However, I do believe that 9. students would benefit 10. having the input of a teacher and other students in a traditional classroom.
Эти слова нужно использовать
1. a) made
b) encouraged
c) done
d) supported
4. a) other
b) despite
2. a) in spite
3. a) better as b) better then
b) others
c) because of d) because
c) better than d) better that
c) the others
d) another
5. a) friend
b) mate
c) chap
d) fellow
6. a) to
b) too
c) two
d) also
7. a) be done
b) do
c) be made
d) make
8. a) house
b) accommodation c) flat
d) home
9. a) most of
b) most
c) few
d)no
10. a) out
b) out of
c) from
d)-
пусть весь путь равен s, а скорость первого автомобилиста х. получаем уравнение
s s / 2 s / 2
= +
x x - 15 90
сократив на s, получаем
1 1 1
- =
х 2 * х - 30 180
2 * х - 30 - х 1
=
х * (2 * х - 30) 180
2 * х² - 30 * х = 180 * х -5400
2 * х² - 210 * х + 5400 = 0
это уравнение имеет 2 корня
х₁ = 45 х₂ = 60
поскольку по условию х > 54, то первый автомобиль ехал со скоростью
60 км/ч