Exercices de Anglais : Science & progress

Read the sentences about scientific progress and fill in the blanks using the Past Simple of the verbs in brackets. 1. In 1903, the Wright brothers ________ (fly) the first motor-powered airplane. 2. Alexander Graham Bell ________ (invent) the telephone in 1876. 3. Scientists ________ (discover) many new vaccines in the $20^{th}$ century to improve health. 4. Computers ________ (become) smaller and faster over the last few decades.

Read the sentences about scientific progress and fill in the blanks using the Past Simple of the verbs in brackets. 1. In 1903, the Wright brothers ________ (fly) the first motor-powered airplane. 2. Alexander Graham Bell ________ (invent) the telephone in 1876. 3. Scientists ________ (discover) many new vaccines in the $20^{th}$ century to improve health. 4. Computers ________ (become) smaller and faster over the last few decades.

Read the following text and perform the requested tasks: 'By the year $2050$, the implementation of advanced electric propulsion systems is expected to reduce urban pollution. An electric vehicle travels at an average speed of $60 \text{ km/h}$ for a duration of $2.5 \text{ hours}$. Calculate the total distance ($d$) covered by this vehicle. Furthermore, explain why the use of solar energy, represented as $E_{solar}$, is considered a better alternative to burning fossil fuels which release $CO_2$ into the atmosphere.'

Read the following text and perform the requested tasks: 'By the year $2050$, the implementation of advanced electric propulsion systems is expected to reduce urban pollution. An electric vehicle travels at an average speed of $60 \text{ km/h}$ for a duration of $2.5 \text{ hours}$. Calculate the total distance ($d$) covered by this vehicle. Furthermore, explain why the use of solar energy, represented as $E_{solar}$, is considered a better alternative to burning fossil fuels which release $CO_2$ into the atmosphere.'

Read the following scenario and write an argumentative paragraph. Scenario: Scientists have developed a new technology to edit human genes, known as CRISPR-Cas9, which uses an enzyme system to cut DNA sequences at specific locations. While this could eradicate genetic diseases like $Cystic Fibrosis$ (caused by a mutation in the $CFTR$ gene), it raises the possibility of 'designer babies'. You are a student journalist. Write a text of 120-150 words in English discussing the impact of this innovation. You must use at least two modals of probability (e.g., $might$, $could$), one conditional structure (e.g., $if$, $would$), and mention one scientific benefit and one ethical risk.

Read the following scenario and write an argumentative paragraph. Scenario: Scientists have developed a new technology to edit human genes, known as CRISPR-Cas9, which uses an enzyme system to cut DNA sequences at specific locations. While this could eradicate genetic diseases like $Cystic Fibrosis$ (caused by a mutation in the $CFTR$ gene), it raises the possibility of 'designer babies'. You are a student journalist. Write a text of 120-150 words in English discussing the impact of this innovation. You must use at least two modals of probability (e.g., $might$, $could$), one conditional structure (e.g., $if$, $would$), and mention one scientific benefit and one ethical risk.