Exercices B1 : exprimer la certitude et le doute (corrigé)

Ces exercices vous permettent de pratiquer les modaux, adverbes et expressions verbales vus dans le cours pour exprimer la certitude et le doute en anglais. Complétez, corrigez et choisissez la bonne réponse pour consolider vos acquis.

→ Voir le cours : Exprimer la certitude et le doute en anglais : cours complet

Exercice 1 : Complétez avec le bon modal ou adverbe

Complétez chaque phrase avec le mot correct parmi : must, might, probably, definitely. Réécrivez la phrase entière dans votre réponse.

1. She ___ be at home — all the lights are on and her car is in the driveway.
2. I'm not sure, but he ___ come to the party if he finishes work early.
3. They will ___ cancel the match because of the heavy rain.
4. This is ___ the best solution — I have no doubt about it at all.

Correction

1. She must be at home ; all the lights are on and her car is in the driveway.
2. I'm not sure, but he might come to the party if he finishes work early.
3. They will probably cancel the match because of the heavy rain.
4. This is definitely the best solution ; I have no doubt about it at all.

Exercice 2 : Corrigez les erreurs grammaticales

Chacune des phrases suivantes contient une erreur liée à l'expression de la certitude ou du doute. Réécrivez chaque phrase correctement en entier.

1. I think that she musts be very tired after such a long journey.
2. He probably is not going to definitely understand the instructions.
3. They might to arrive late because of the traffic on the motorway.
4. I'm not sure if this may be the right answer, but I definite think so.

Correction

1. I think that she must be very tired after such a long journey.
2. He probably is not going to understand the instructions.
3. They might arrive late because of the traffic on the motorway.
4. I'm not sure if this may be the right answer, but I definitely think so.

Exercice 3 : Choisissez la phrase correcte

Pour chaque situation, choisissez la phrase qui exprime le mieux le degré de certitude ou de doute indiqué entre parenthèses.

1. You are almost certain that Paul forgot the meeting, with a high probability.
   • Paul must have forgotten the meeting.
   • Paul might have forgotten the meeting.
   • Paul may not forget the meeting.
   • Paul definitely forgets the meeting.
2. Vous n'êtes pas sûr(e) que ce restaurant soit ouvert le dimanche (doute modéré).
   • This restaurant must be open on Sundays.
   • This restaurant may be open on Sundays.
   • This restaurant is definitely open on Sundays.
   • This restaurant probably is not open on Sundays.
3. Vous êtes totalement certain(e) que cette réponse est correcte (certitude absolue).
   • I think this answer is correct.
   • This answer might be correct.
   • This answer is definitely correct.
   • This answer may be correct.
4. Vous exprimez une opinion personnelle avec une légère incertitude.
   • I must think the plan is a good idea.
   • I think the plan is probably a good idea.
   • The plan definitely might be a good idea.
   • I'm sure the plan may be a good idea.

Correction

1. Paul must have forgotten the meeting.
2. This restaurant may be open on Sundays.
3. This answer is definitely correct.
4. I think the plan is probably a good idea.