Open the brackets using the first Conditional.

1. Sports can benefit/everyone.
- Explanation: Sports are beneficial for everyone, as they help to improve physical health, mental well-being, and overall quality of life.

2. It’s better to prevent a disease than to spend a lot of time on its treatment.
- Explanation: It is more effective and efficient to take measures to prevent a disease from occurring in the first place, rather than having to spend a significant amount of time, effort, and resources on treating the disease after it has already developed.

3. Exercise/Physical activity is good not only for your body but also for the soul.
- Explanation: Engaging in regular exercise or physical activity not only improves physical health and fitness, but it also has positive effects on mental and emotional well-being. Exercise can help reduce stress, improve mood, boost self-confidence, and increase overall happiness.

4. There is a famous Lermontov spring in the Caucasus.
- Explanation: The Lermontov spring is a well-known natural spring located in the Caucasus region. It is named after the famous Russian poet Mikhail Lermontov, who had a special connection to the region. The spring is known for its clean and refreshing water, and it attracts tourists and locals alike.

5. If you swim in the ice hole, then you can be called a walrus.
- Explanation: In some cold regions, it is a popular tradition to swim in a hole made in the frozen surface of a body of water, such as a lake or a river. People who participate in this activity, swimming in icy water, are playfully referred to as "walruses," as they display bravery and endurance in the face of extreme cold.

6. The best treatment/cure for a cold is hot milk.
- Explanation: While there is no specific cure for the common cold, drinking warm liquids such as hot milk can help alleviate symptoms and provide relief. Hot milk can soothe a sore throat, relieve congestion, and promote better sleep, which aids in the recovery process. However, it is important to note that hot milk alone may not completely cure a cold, and other remedies and rest may also be necessary.

7. To prevent/avoid/catch a disease is easier than to find/treat/cure it.
- Explanation: It is generally easier and more effective to take preventive measures, such as practicing good hygiene, maintaining a healthy lifestyle, and getting vaccinated, to avoid contracting a disease. Once a disease has developed, it often requires more time, effort, and resources to find a suitable treatment and cure. Thus, prevention is better than cure in terms of both individual health and public health.

8. One can’t be called a walrus if they swim in a cold ice hole in summer.
- Explanation: The term "walrus" is typically associated with swimming in icy waters during the winter season. If someone were to swim in a cold ice hole during the summer, when the water is not frozen, they would not be considered a "walrus" as the extreme cold element is absent. The title of "walrus" is specific to those who engage in this activity during cold weather conditions.

Активное предложение - это предложение, в котором подлежащее совершает действие, а пассивное предложение - это предложение, в котором подлежащее является объектом или получателем действия, а сказуемое указывает на выполнителя действия.

Давай посмотрим на предложения и разберем их, чтобы лучше понять разницу между активным и пассивным предложениями:

1. The cat chased the mouse.
В этом предложении "the cat" - это подлежащее, а "chased" - сказуемое. Мы видим, что подлежащее "the cat" совершает действие "chased". Поэтому это активное предложение.

2. The mouse was chased by the cat.
В этом предложении "the mouse" - это подлежащее, а "was chased" - сказуемое. Мы видим, что подлежащее "the mouse" является получателем действия "chased", а выполнителем действия является "the cat", хотя само действие "chased" не указано явно. Поэтому это пассивное предложение.

Таким образом, основная разница между активным и пассивным предложениями заключается в том, что в активном предложении подлежащее совершает действие, а в пассивном предложении подлежащее является объектом или получателем действия, и указывается выполнитель действия.

Надеюсь, эта информация была полезной и помогла вам понять разницу между активными и пассивными предложениями. Если у вас возникнут еще вопросы, не стесняйтесь задавать их.