Preposições IN, ON e AT: quando usar cada uma?

Inglês — Escrito por

Preposições são palavras que estabelecem a ligação entre duas orações. Elas são de grande importância, pois essa ligação permite que a frase tenha coesão, tornando a comunicação compreensível.

Em Inglês isso não é diferente. A seguir, falaremos sobre as preposições In, On e At em expressões de tempo.

Confira quando elas são usadas e depois resolva os exercícios propostos para treinar seus conhecimentos!

AT

A preposição AT deve ser usada:

  • com horas e horários: at six o’clock, at midday
  • com noite: at night
  • com algumas datas: at Christmas, at Easter,
  • mas ON Christmas Day (pois com dias, tem que usar ON).

ON

A preposição ON deve ser usada:

  • com dias e datas: on Monday, on December 6th
  • com fim-de-semana: on the weekend
  • na expressão “na hora”: on time

IN

A preposição IN deve ser usada:

  • com os períodos do dia: in the morning / afternoon / evening,
  • mas use AT night

  • com as estações do ano: in the spring, in the fall
  • com as semanas, meses, anos e séculos: in the second week of February, in April, in 2009, in the 20th century
  • na expressão “em tempo”: in time, e “just in time”: bem na hora.

Exercícios:

A – Complete with: IN – ON – AT:

  1. ________ Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday.
  2. ________ the weekend.
  3. ________ Sunday morning, Monday afternoon, Tuesday evening.
  4. ________ January, February, March, April, May, June, July, August, September, October, November, December.
  5. ________ January 1st, January 2nd, January 3rd, January 4th, January 5th.
  6. ________ 1999, 2000, 2001, 20002, 2003, 2009, 2010.
  7. ________ January 10th, 2010.
  8. ________ one clock, two-ten, a quarter to four, a quarter past five, half past nine.
  9. ________ Christmas, Easter.
  10. ________ the past, the future.
  11. ________ the summer, the winter, the spring, the fall/autumn.

B – Complete with on or at.

  1. I have to be ______ time for my job interview.
  2. The bus leaves ______ 8 o’clock.
  3. We are meeting ______ midday in front of the cafeteria.
  4. I study English ______ Mondays and Wednesdays.
  5. What are you doing ______ Friday evening?
  6. I always get up late ______ the weekend.
  7. I love Paris ______ night.
  8. I clean my apartment ______ Friday.
  9. I have a dentist appointment ______ half past three.
  10. I usually go to bed _______ midnight.

C – Complete with in, on or at.

  1. We are going to Paris ______ the summer.
  2. Millions of people left Europe ______ the nineteenth century.
  3. The opening will be ______ January.
  4. I think driving ______ night is very dangerous.
  5. 5 I have one cup of coffee ______ the morning and another one ______ the afternoon.
  6. Albert Einstein was born ______ March 14, 1879 and died ______ December, 1936.
  7. Millions of people celebrate New Year’s ______ January first every year.
  8. The tests will begin tomorrow early ______ the morning and will last all day long.
  9. I was born ______ a Saturday.
  10. I prefer to work ______ the evening and I hate to get up early ______ the morning.

Gabarito:

A

  1. ON Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
  2. ON the weekend
  3. ON Sunday morning, Monday afternoon, Tuesday evening
  4. IN January, February, March, April, May, June, July, August, September, October, November, December
  5. ON January 1st, January 2nd, January 3rd, January 4th, January 5th
  6. IN 1999, 2000, 2001, 20002, 2003, 2009, 2010
  7. ON January 10th, 2010
  8. AT one clock, two-ten, a quarter to four, a quarter past five, half past nine
  9. AT Christmas, Easter
  10. IN the past, the future
  11. IN the summer, the winter, the spring, the fall/autumn

B

  1. I have to be ON time for my job interview
  2. The bus leaves AT 8 o’clock.
  3. We are meeting AT midday in front of the cafeteria.
  4. I study English ON Mondays and Wednesdays.
  5. What are you doing ON Friday evening?
  6. I always get up late ON the weekend.
  7. I love Paris AT night.
  8. I clean my apartment ON Friday.
  9. I have a dentist appointment AT half past three.
  10. I usually go to bed AT midnight.

C

  1. We are going to Paris IN the summer.
  2. Millions of people left Europe IN the nineteenth century.
  3. The opening will be IN January.
  4. I think driving AT night is very dangerous.
  5. I have one cup of coffee IN the morning and another one IN the afternoon.
  6. Albert Einstein was born ON March 14, 1879 and died IN December, 1936.
  7. Millions of people celebrate New Year’s ON January first every year.
  8. The tests will begin tomorrow early IN the morning and will last all day long.
  9. I was born ON a Saturday.
  10. I prefer to work IN the evening and I hate to get up early IN the morning.

 

Por: Lili Zen

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