There is a great number of people who say that flights to space were the greatest development of the previous century. While others claim that exploring the space was not the biggest achievement. In this essay, I will express my point of view on this issue. In my opinion, flights to space were not the greatest achievement of the 20th century. First, costs involved in space exploration are enormous and the money could be spent on more pressing issues. Second, space exploration had no practical use to develop it at that time and now. Undoubtedly, there may be some practical use in the distant future, such as possibly colonizing other planets, but it distracted people from solving more important issues like ecology situation and climate change. Dreaming about colonizing Mars humanity recklessly uses the resources of their own planet.
There is an opinion that you don't need to think about the future at all, because it hasn't come yet, that you need to live "here and now". However, this view is extremely naive. You can't know the future, of course, but you can assume it. And even need to. Otherwise, it becomes unclear how to proceed.
Объяснение:
a) 1. Anna has lived in London since 1985. She works in a Bank. She's been working there for three years.
2. Bill always wanted to visit Brighton. He has read many books about this resort.
3. - The Browns haven't built their new house, yet.
"How long have they been building it?"
"They've been building it for two years.
4. I haven't seen you for ages. Where were you? Where were you hiding?
I'm writing a book about my adventures.
I've been writing it for 1.5 months, so I've been living in my summer cottage since May.
b) 1. What's the weather like in Los Angeles today? - It's hot and sunny.
It's a fine day to go to the seaside, to swim and sunbathe.
2. How long does it rain? It's been raining for three days. It's windy, wet, and cloudy outside. We have got autumn weather.
3. What was the weather like in Moscow yesterday?
It was snowing, and the temperature was 10 degrees below zero, but it was sunny.