- •Unit 7 The Movement of Holes Language Work
- •Present Perfect Passive (measurements have been done)
- •Fill in the gaps in the descriptions of the figures using the words from the table above where possible and the following verbs: break, free, move, come, occur.
- •Open the brackets and complete the dialogues with just, already, yet.
- •Put in become, broken, begun or come.
- •You are asking students questions about things they have done. Make questions with ever using the words in brackets.
- •Complete b’s answers. Some sentences are positive and some negative. Use the following verbs: write, use, design, interest, experiment, read.
- •Read the situations and write sentences using the example.
- •Complete these sentences with the following verbs (in the form of Present Perfect Passive).
- •Rewrite these sentences into the passive voice.
- •Make sentences from the words in brackets using the Present Perfect Passive.
- •Form adjectives from the following nouns using the suffix – ous and translate them.
- •Read and translate word-combinations.
- •Start from the first component:
- •Start from the second component:
- •Match the following sentences with their translations.
- •Choose as many words from the table of ex.1 as you can and form sensible sentences.
- •Specialist Reading
- •Read the text “The Movement of Holes”. Mark the following sentences as true (t) or false (f).
- •The Movement of Holes
- •Read the text again and complete the sentences with the correct ending.
- •Work in pairs. Ask your partner some questions based on the text. Make sure you use the correct auxiliary verb.
- •Summarize the text “The Movement of Holes” in 100 words using the following plan:
- •Translate the text, which contains additional information about electron-
- •Measuring the Movement of Holes in Crystal Surfaces
- •Speaking
- •Describe the process of recombination to your group mate using active terms of the Unit and the Present Perfect.
- •Try to work as an interpreter. Translate the explanation of the way the
- •Divide into two groups. Group a translates text a “Education”, group b translates text b “Science and Innovation" with a dictionary in writing. Text a education
Put in become, broken, begun or come.
We heat a part of a silicon crystal. By means of heating one covalent bond’s … and an electron’s freed itself.
The second electron’s … close enough to the first hole and is attracted by its electric field.
The process of recombination’s … .
Our scientists have … to develop and introduce a whole range of important inventions.
It’s clear, that’s why it’s … easy.
You are asking students questions about things they have done. Make questions with ever using the words in brackets.
(know/physicist?) Have you ever known a famous physicist?
(observe/phenomenon?)
(disappear/lectures?)
(design/project?)
(introduce/invention?)
(take part/scientific conference?)
Complete b’s answers. Some sentences are positive and some negative. Use the following verbs: write, use, design, interest, experiment, read.
A B
-
1. Can you name the recent inventions in electronics?
I’ve read a lot about that, but I haven’t remembered them yet.
2. Can you describe intrinsic conduction?
3. Do you know any information media?
4. The increase of temperature of germanium by one degree Centigrade increases its conductivity approximately by 5 per cent. Does the same take place in silicon?
5. Have you ever invented anything?
6. Is it easy for you to carry out laboratory tests in physics?
7. Are you an expert in programming?
Complete the sentences using today/this year/this month etc. + Present Perfect.
For example:
There was a relatively high rate of recombination in the prototype yesterday, but it hasn’t recovered the old level today.
Some centuries ago scientists didn’t have enough information about the nature of intrinsic conduction, but … .
The invention of hydrogen and nuclear bombs in the XX century made people of all over the world afraid about their lives, but due to common efforts of politicians … today.
After the boulder-period of B.C. era, we all observe the phenomenon of global warming, which … this century.
The plant “Horizont” had a severe setback in production in the beginning of nineties, but this decade …
In 1975 our faculty wasn’t able to prepare experts in sphere of space development, but this year … .
Read the situations and write sentences using the example.
For example:
John is working with the Internet Explorer at the moment and looks like a novice in this business.
You: Have you ever worked with Internet Explorer?
John: No, but I’ve already learnt the most important rules about this program.
Ann is trying to take the temperature of the device with the help of a Centigrade thermometer. But she is using it in a wrong way.
You:
Ann:
Peter starts putting on the spacesuit for working in open space. But it seems to you, that he has forgotten some important details of the costume.
You:
Peter:
Greg wants to observe the constellation of Orion, but can’t adapt the telescope.
You:
Greg:
Alexandra got the task to increase the conductivity of a piece of germanium. She cooled it.
You:
Alexandra: