Many countries have a network of railways to help transport different types of products. The earliest system was in Ancient Greece in 600 BC. Later rail links were built to connect short distances. In the 19th century, this changed very much. Many countries developed their own network. They had private links between different towns with Germany and Britain. Britain had the best links. These links allowed carrying heavy goods such as coal, iron, ore, and wood. Building a railway was a hard work for labourers. Railways are very expensive to construct but important to transport raw materials and such goods as textiles quickly and cheaply. In the early 19th century, the first passengers travelled on the railways with horse-drawn carriages. From 1840-1850 Britain was connected by railways and used steam engine to pull carriages. 1 Why is it necessary to have a network of railways?
2. When and where was the first railway system?
3.Where were the best rail links?
4. How did the first passengers travel on the railways?
5. When did Britain begin to use steam engine?

1. Tom ( plays) football on Saturday. 2. He (does not  play) football every day. 3. I (am wearing) a suit now. 4. I (am not wearing) jeans now. 5. My friend (do not  like) to play football. 6. I (am not  reading) now. 7. ( Is) He ( sleeping) now? 8. We (do not  go) to the country in winter. 9. My sister ( eats) sweets every day. 10. She (is not  eating) sweets now. 11. They ( do) their homework in the afternoon. 12. They (do not  go) for a walk in the evening. 13. My father (does not  work) on Sunday. 14. He ( works) every day. 15. I ( read) books in the evening. 16. I (do not  read) books in the morning. 17. I (am writing) an exercise now. 18. I (am not writing) a letter now. 19. They (are playing) in the yard now. 20. They (are not  playing) in the street now. 21. (Are) They ( playing) in the room now? 22. He ( helps) his mother every day. 23. (Does) he ( help) his mother every day? 24. He (does not  help) his mother every day. 25. ( Do) You ( go) to school on Sunday? 26. (Is) She ( working) in a shop now? 27. (Is) He ( delivering) letters now? 28. (Do) You (go) to the opera with your friends?

ответ

1. Tom plays football on Saturday.

2. He doesn't play football every day.

3. I'm wearing a suit now.

4. I am not wearing jeans now.

5. My friend doesn't like to play football.

6. I am not reading  now.

7. Is he sleeping now?

8. We don't go to the country in winter.

9. My sister eats sweets every day.

10. She is not eating sweets now.

11. They do their homework in the afternoon.

12. They don't go for a walk in the evening.

13. My father doesn't work on Sunday.

14. He works every day.

15. I read books in the evening.

16. I don't read books in the morning.

17. I am writing an exercise now.

18. I 'm not writing a letter now.

19. They are playing in the yard now.

20. They aren't playing in the street now.

21. Are they playing in the room now?

22. He helps his mother every day.

23. Does he help his mother every day?

24. He doesn't help his mother every day.

25. Do you go to school on Sunday?

26. Is she working in a shop now?

27. Is he delivering letters now?

28. Do you go to the opera with your friends?

Правило

Когда мы видим слово now (прямо сейчас), сразу знаем, что это present continuous. Строим его так:

1. Положительное предложение

I + am+глагол с окончанием ing

he/she/it+ is+глагол с окончанием ing

you + are+глагол с окончанием ing

we + are+глагол с окончанием ing

they + are+глагол с окончанием ing

2. Отрицательное

I + am+not+глагол с окончанием ing

he/she/it+ is+not+глагол с окончанием ing

you + are+not+глагол с окончанием ing

we + are+not+глагол с окончанием ing

they + are+not+глагол с окончанием ing

3. Вопрос

Am + I +глагол с окончанием ing?

is+ he/she/it+ глагол с окончанием ing?

are+ you + глагол с окончанием ing?

are+we +глагол с окончанием ing?

are+they +глагол с окончанием ing?

Если в предложении говорится о том, что происходит постоянно, о правилах, о расписании и применяются слова usually(обычно), sometimes (иногда), always (всегда) и тд, то это Present Simple

Строим его так:

1. Положительное предложение

I + глагол в инфинитиве (play)

You + глагол в инфинитиве

He/she/it + глагол  в инфинитиве, НО на конце еще буква s (plays)

We/they + глагол в инфинитиве

2. Отрицательное

I + don't + глагол в инфинитиве (play)

You + don't + глагол в инфинитиве

He/she/it + doesn't + глагол  в инфинитиве (буквы s после глагола уже не надо)

We/they + don't+ глагол в инфинитиве

3. Вопрос

Do + you/we/they+ глагол в инфинитиве

Does + he/she/it + глагол в инфинитиве

Инфинитив-это начальная форма глагола