5. a) match the words with similar meanings. 1) to evolve a) material 2) incipient b) speed 3) vigorously c) to remove 4) to happen d) to react with oxygen 5) substance e) starting 6) to eliminate f) strongly 7) combustibility g) to give off 8) fire h) flammability 9) to oxidize i) combustion 10) rate j) to occur b) match the words with opposite meanings. 1) to cool a) weak 2) to cease b) insufficient 3) flammable c) to heat 4) to extinguish d) slow 5) to raise e) to reduce 6) to accelerate f) to begin 7) rapid g) to ignite 8) incipient h) final 9) sufficient i) non-flammable 10) vigorous j) to slow down

5.) Сопоставьте слова с похожими значениями.1) эволюционировать а) материалы2) зарождающееся B) Скорость3) энергично С), чтобы удалить4) произойдет D), чтобы вступать в реакцию с кислородом5) вещества Е) начальная6) для устранения F) сильно7) горючести G) испустить8) огонь H) горючести9) окислять I) сгорания10) J Скорость) происходитB) Сопоставьте слова с противоположными значениями.1) для охлаждения) слабо2) прекратить Б) недостаточная3) воспламеняется С) для нагрева4) гасить D) медленно5) поднять E), чтобы уменьшить6) для ускорения F), чтобы начать7) быстрое G), чтобы зажечь8) зарождающаяся H) окончательный9) достаточно, I) негорючий10) энергичной J), чтобы замедлить

a) match the words with similar meanings.
1) to evolve - to occur
2) incipient - starting
3) vigorously - strongly
4) to happen - to occur
5) substance - material
6) to eliminate - to remove
7) combustibility - flammability
8) fire - combustion
9) to oxidize - to react with oxygen
10) rate - speed

b) match the words with opposite meanings.
1) to cool - to heat
2) to cease - to begin
3) flammable - non-flammable
4) to extinguish - to ignite
5) to raise - to reduce
6) to accelerate - to slow down
7) rapid - slow
8) incipient - final
9) sufficient - insufficient
10) vigorous - weak

Let's go through each word pair and explain their meanings:

a) Match the words with similar meanings:

1) to evolve - This means to occur or develop gradually over time. For example, the theory of evolution explains how species evolve over millions of years.

2) incipient - This means starting or just beginning. For example, an incipient fire is a fire that has just started.

3) vigorously - This means doing something with great strength, energy, or enthusiasm. For example, you can vigorously clean a room by putting a lot of effort into it.

4) to happen - This means to occur or take place. For example, an accident can happen unexpectedly.

5) substance - This refers to a material or matter that has a particular composition or characteristics. For example, water is a substance that is essential for life.

6) to eliminate - This means to remove or get rid of something. For example, you can eliminate waste by throwing it in the trash.

7) combustibility - This refers to the ability of a material to burn or catch fire. For example, gasoline has a high combustibility, which is why it is used as a fuel.

8) fire - This refers to the process of combustion, where a substance reacts with oxygen and produces heat, light, and flames. For example, a fire is used for cooking or heating.

9) to oxidize - This means to react with oxygen. For example, when iron reacts with oxygen, it oxidizes and turns into rust.

10) rate - This refers to the speed or pace at which something occurs or changes. For example, the heart rate measures how fast the heart is beating.

b) Match the words with opposite meanings:

1) to cool - This means to make something colder or reduce its temperature. For example, you can cool a drink by putting ice in it.

2) to cease - This means to stop or come to an end. For example, a ceasefire is an agreement to cease fighting in a war.

3) flammable - This refers to the ability of a material to catch fire or burn easily. The opposite is non-flammable, which means that a material does not burn easily.

4) to extinguish - This means to put out or stop a fire or flame. For example, you can extinguish a candle by blowing it out.

5) to raise - This means to increase or lift something higher. For example, you can raise your hand to answer a question.

6) to accelerate - This means to increase the speed or rate at which something happens or moves. For example, pressing the accelerator pedal in a car makes it accelerate.

7) rapid - This means fast or quick. The opposite is slow, which means not fast or taking a longer time.

8) incipient - This means just beginning or in an early stage of development. The opposite is final, which means the last or end stage of something.

9) sufficient - This means enough or adequate. The opposite is insufficient, which means not enough or lacking.

10) vigorous - This means done with strength, energy, or force. The opposite is weak, which means lacking strength or power.

I hope this detailed and step-by-step explanation helps you understand the meanings of the words and how they match with their similarities or opposites. Let me know if you have any further questions or need additional clarification.