The first microchip 19.(PRODUCE) in 1974, and two men are credited with having the original idea. In 1958, engineer Jack Kilby had joined a company called Texas Instruments. Because he 20.(NOT/ACCRUE) as much holiday time as his colleagues, he found himself alone in the lab with time on his hands. It was then that he conjured up the idea for what 21.(BECOME) the microchip in the future. But in California, another man had a similar idea. In January of 1959, Robert Noyce conceived the idea for a whole circuit which could be made on a single chip. In 1961, the patent office 22.(AWARD) the first patent for an integrated circuit to Robert Noyce while Kilby's application was still being analysed. But both men are now acknowledged as having independently conceived the original idea. Russian scientists deploy giant telescope beneath Lake Baikal

The telescope, Baikal-GVD, is designed to search for neutrinos, which are nearly massless subatomic particles with no electrical charge. Neutrinos are everywhere, but they interact so weakly with the forces around them that it is challenging to detect. That's why now scientists 23.(LOOK) under Lake Baikal, which is the deepest lake on Earth.

Scientists deployed the detector on the 13th of March, 2021. According to 24.(THEY), the result 25.(BE) available quite soon.

Mary: When are you flying to Barcelona, Kevin?Kevin: I'm leaving on Tuesday and coming back on Friday. Mary: So, you are going to have three relaxing days there.  Kevin: I wouldn't say so. It's a business trip on the first place. But if I have a free time I will visit some sights of the city..  Mary: Are you flying by Spanish airlines? Kevin: I've go the tickets from Delta Airlines. It's not the first time when I'm flying with them. Delta is a reliable company. Mary: I see. Have you prepared your swimming trunks and sunscreen? You know, it's really hot in Barcelona at this time of the year. And there are wonderful beaches.  Kevin: I heard so. But I'm not a fan of swimming and sunbathing. I prefer to spend my time seeing places of interest. And I know that Barcelona is full of such places.  Mary: For example, which sight would you like to visit?  Kevin: Let's say, La Sagrada Familia.
 Mary: Whats' that?Kevin: It's a The Temple of the Holly Family in Barcelona. This building is famous as one of the best projects of Antonio Gaudi. Mary: And who is Antonio Gaudi?Kevin: Mary, I think that you should go to Spain, not me. You know almost nothing about this country. Gaudi is the most famous Spanish architect..  Mary: Ah, I see. I would love to visit Spain some day. And I'm a bit jealous that you are flying there. Will you bring me a small present from there?Kevin: Yes, of course. What do you want?Mary: Something really small, like a postcard or a magnet with a nice view of Barcelona.Kevin: No problem. I will bring you something nice. Mary: By the way, where are you going to stay? Kevin: The company has booked a room in the hotel for me. I don't know which hotel yet, but I know that it's a nice suite right in the city center.  Mary: Lucky you! I'm sure you'll have a great view from your window. Kevin: I hope so.Mary: Oh well. All I have to say is have a good trip and take care of yourself. Kevin: Thank you Mary!  Mary: Ah, nearly forgot. Please, be careful with your luggage and don't leave your things unattended. There are plenty of thieves at the airport, at the hotel and other crowded places.Kevin. All right. I will be careful.

In recent years the number of environmental problems has increased greatly. One of the most dangerous problems for our planet is global warming which means that most climates all over the world are changing and getting warmer. It happens because we burn too much petrol resources, such as oil and coal, and the Earth heats up. This process can cause melting of the polar ice and the sea level rising in the future. If the climate changes there will be floods, heavy storms or severe droughts in different areas of the world.We should start recycling things made of glass, paper, plastic and aluminium. We should stop smoking and plant as many trees as we can because they can give us more oxygen. We need to drive less and use public transport in order to reduce fuel burning. We are responsible for the situation.