Контрольная работа по Английскому языку на тему: "Kinds of Satellites"

КОНТРОЛЬНАЯ РАБОТА № 7 по английскому языку ВАРИАНТ № 2

Задание 1. Прочитайте текст " Kinds of Satellites" и ответьте на вопросы письменно. 1. What are satellites generally classified according to? 91 2. What types of satellites are there? 3. Can all astronomical observations be made from the surface of the earth? 4. What two kinds of weather satellites are there in the USA? 5. What types of data are transmitted to a communications satellite? 6. What antennas can be applied for transmission and reception in geostationary orbits? Kinds of Satellites By James Didner Satellites are commonly classified, according to the purpose they serve, as scientific (or research), applications, or military satellites. These classifications overlap to some extent. Scientific, or Research, Satellites contain instruments designed to make observations and gather data for studies in geophysics, astronomy, and other scientific fields. Investigations of the earth's upper atmosphere, the Van Allen radiation belts, and levels of high-energy radiation in space were among the first investigations made by scientific satellites. Many kinds of astronomical observations that cannot be made from the surface of the earth can be made by satellites in orbit above the atmosphere....

Задание 2. Сопоставьте спутники (А) с их назначениями (Б) и запишите полученное одним предложением. A 1. Research Satellites Б 1. function as relays for long-distance communications. 2. Application Satellites 2. helps to determine the ship's position very accurately anywhere in the world. 3. Communications satellites 3. perform observations and collect data for scientific studies in different fields. 4. A global network of Intelsat satellites 4. aims at performing international communications. 5. A network of navigation satellites 5. employed for reconnaissance deliver extremely detailed images of the earth's surface. 6. Some military 6. are intended for weather forecasting and 93 satellites telecommunications’ aims.

Задание 3. Напишите реферат текста "Kinds of Satellites". Задание 4. Прочитайте текст " What is Transmission Security?". What is Transmission Security? By Charles S. Parker Transmission security is the capability to send a message electronically from one computer system to another computer system so that only the intended recipient receives and reads the message and the message received is identical to the message sent. The message would not be identical if it was altered in anyway, whether transmitted over faulty channels or intercepted by an eavesdropper. All transmissions can be intercepted. And the cautious user looks at all transmissions as if they will be intercepted. You can minimize the risks of transmission interception, but you can never, under any circumstances, completely rule it out. ...

Задание 5. Сопоставьте данные предложения. A B 1. Transmission security is the capability to send a message electronically … 1. … although much more difficult, to accessing a transmission sent over airwaves. 2. All transmissions can … 2. … it's likely they will occur at times. 3. Accessing wires is somewhat comparable, … 3. … from one computer system to another computer system. 4. Many risks occur … 4. … throw your computer systems away. 5. If you are certain that security is too high to risk over networks, … 5. … with cellular phones. 6. Unfortunately, transmission interceptions are inevitable; … 6. … be intercepted.

Задание 6. Напишите аннотацию текста " What is Transmission Security?".