Anglais · 1ere

Anglais scientifique et technique

Ce que tu dois retenir

Chapitre 1 — Scientific & Technical Vocabulary

Connaître 10 racines courantes permet de deviner le sens de nombreux termes scientifiques anglais.

Chapitre 2 — Passive Voice in Scientific Writing

In scientific English, the passive voice is preferred to describe procedures and results.

Chapitre 3 — Describing Processes & Cause-Effect

Use linkers to make your scientific explanations clear and logical.

Chapitre 4 — Numbers, Units & Lab Equipment

Always use the correct unit and pronounce numbers clearly in scientific English.

Teste-toi

1. Which prefix means 'heat'?

AA. bio-
BB. thermo-
CC. photo-
DD. hydro-
Voir la réponse

Réponse : B — B. thermo-

The prefix 'thermo-' comes from Greek and means heat, as in 'thermometer'.

2. Choose the correct passive sentence:

AA. The solution is heated to 50°C yesterday.
BB. The solution was heated to 50°C during the experiment.
CC. The solution were heated to 50°C.
DD. The solution be heated to 50°C.
Voir la réponse

Réponse : B — B. The solution was heated to 50°C during the experiment.

Past passive: was/were + past participle. 'Solution' is singular, so 'was heated'.

3. Which linker shows a consequence?

AA. However
BB. As a result
CC. Although
DD. Despite
Voir la réponse

Réponse : B — B. As a result

'As a result' introduces the effect of a previous cause.

4. How do you read 3.14 in scientific English?

AA. three comma fourteen
BB. three point fourteen
CC. three point one four
DD. three dot fourteen
Voir la réponse

Réponse : C — C. three point one four

In English, decimals use 'point' and each digit is read separately after the point.

5. Which piece of equipment is used to transfer precise volumes of liquid?

AA. Beaker
BB. Test tube
CC. Pipette
DD. Bunsen burner
Voir la réponse

Réponse : C — C. Pipette

A pipette is designed for accurate measurement and transfer of small liquid volumes.

6. What is the correct passive form of 'They collected the data'?

AA. The data was collected
BB. The data were collected
CC. The data is collected
DD. The data collected
Voir la réponse

Réponse : B — B. The data were collected

In scientific English, 'data' is plural, so use 'were collected'.

7. Which suffix means 'study of'?

AA. -meter
BB. -ology
CC. -scope
DD. -graph
Voir la réponse

Réponse : B — B. -ology

The suffix '-ology' comes from Greek 'logos' meaning study, as in 'biology'.

8. Choose the correct sequence:

AA. First the sample is prepared, then it is placed in the machine.
BB. Then the sample is prepared, first it is placed in the machine.
CC. Finally the sample is prepared, next it is placed in the machine.
DD. Next the sample is prepared, finally it is placed in the machine.
Voir la réponse

Réponse : A — A. First the sample is prepared, then it is placed in the machine.

The logical order is 'first' for the initial step, then 'then' for the following step.

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