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Ответ на Unit 3, Step 9, Номер 1 из ГДЗ по Английскому языку 9 класс: Афанасьева (Учебник Rainbow)
ГДЗ (готовое домашние задание из решебника) по Английскому языку 9 класса авторов О.В. Афанасьева, И.В. Михеева, К.М. Баранова 2014-2021г. на Unit 3, Step 9, Номер 1.
2014
Условие
1 Listen and complete the sentences below.
1) Doctor Martin Cooper was the father of thecell phone
a) radio phoneb) telephonec) cell phone
2) A cell phone functions like a radio.
a) functionsb) looksc) costs
3) Car phones of the 1980s were not cheap at all
a) cheap
b) not very cheap
c) not cheap at all
4) Mobile phones are cheaper than radio phones because people share the same frequencies
a) people share the same frequencies
b) people don’t need any special equipment
c) people use special channels
5) Every two people speaking on cell phones use two frequencies
a) one frequencyc) more than two frequencies
b) two frequencies
6) Something that modern mobile phones cannot do is sending and getting messages
a) contacting the Internetc) printing
b) sending and getting messages
Текст аудирования:
MOBILE PHONES
The first mobile telephone call was made in 1973 by Doctor Martin Cooper, the scientist who invented the modern mobile phones.
A mobile, or a cell, phone works like a radio. In fact, it is modernized radiophone used in cars in the 1980s. Those car phones needed a powerful transmitter and were very expensive. Cell phones differ from them in one important aspect. Carriers or providers cut the territory into segments, or cells, like a honeycomb. As you move, you “jump” from cell to cell and the frequency you’ve just used becomes free for someone else.
So each cell which has a base station — a tower and a building with the radio equipment — uses one-seventh of all the channels it can use. In other words, lots and lots of people can talk on the phone at one time. In fact, millions of people can use the system and that makes the cell phone cheaper to use.
Another difference between cell phones and other radio communication devices is that you use one frequency for talking and another for listening, so both people can talk at once.
These days, phones can do a lot more than make calls. People use their phones to send and get e-mails, take photographs, play games, surf the Internet and do many other things.
1) Doctor Martin Cooper was the father of thecell phone
a) radio phoneb) telephonec) cell phone
2) A cell phone functions like a radio.
a) functionsb) looksc) costs
3) Car phones of the 1980s were not cheap at all
a) cheap
b) not very cheap
c) not cheap at all
4) Mobile phones are cheaper than radio phones because people share the same frequencies
a) people share the same frequencies
b) people don’t need any special equipment
c) people use special channels
5) Every two people speaking on cell phones use two frequencies
a) one frequencyc) more than two frequencies
b) two frequencies
6) Something that modern mobile phones cannot do is sending and getting messages
a) contacting the Internetc) printing
b) sending and getting messages
Текст аудирования:
MOBILE PHONES
The first mobile telephone call was made in 1973 by Doctor Martin Cooper, the scientist who invented the modern mobile phones.
A mobile, or a cell, phone works like a radio. In fact, it is modernized radiophone used in cars in the 1980s. Those car phones needed a powerful transmitter and were very expensive. Cell phones differ from them in one important aspect. Carriers or providers cut the territory into segments, or cells, like a honeycomb. As you move, you “jump” from cell to cell and the frequency you’ve just used becomes free for someone else.
So each cell which has a base station — a tower and a building with the radio equipment — uses one-seventh of all the channels it can use. In other words, lots and lots of people can talk on the phone at one time. In fact, millions of people can use the system and that makes the cell phone cheaper to use.
Another difference between cell phones and other radio communication devices is that you use one frequency for talking and another for listening, so both people can talk at once.
These days, phones can do a lot more than make calls. People use their phones to send and get e-mails, take photographs, play games, surf the Internet and do many other things.
Решение №1
