Basic listening skills, vocabularies, the grammar, the vocabularies and the story our natural endangered ecology die out opinions opinion exist glad, besides and harmful and we are going to explain the grammatical points. These grammars are have to and must. That's why if conditional sentence and such as let's start and begin with vocabularies, natural natural means something that is normal or expected, for example, and that's for all impulse or instinct. For example, it's perfectly natural to feel nervous. Especially before exam, it's very natural to feel nervous. endangered animals or plants that may soon not exist because there are very few now alive.
That's why we call them endangered animals. As you can see in the picture, this animal is endangered. ecology you can see the picture ecology This is a relationship between living things and the environments are the scientific study of this. So the relationship between living things and the environment we call it ecology. The next word is die out, like dinosaurs died out. Day Out means to become more more rare and then disappear completely.
For example, dinosaurs died out about 65 million years ago. opinion. opinion is a thought or belief about something or someone, for example, what's your opinion about or on the matter? Or he has fairly strong opinions on most subjects. expertise exists, exists means to be real or present. For example, do you think that fairies exist poverty still exists in this country.
So it is real and present Glatt as you can see in the picture glad means happy about something. For example, she's very glad that she left or I'm so glad see you. Besides, besides means in addition to something or someone. For example, do you play any other sports besides football? In addition to football, and the last word is harmful. harmful is actually causing or likely to cause harm.
Doctors believe that smoking is harmful to your health. This is really bad. Don't smoke. Okay, guys, that's perfect. Let's go to the next part and understand the grammar