Find the spellings for these words
Module 11
Lesson 3
36. Look at these words and match them to the words below.
mercury t i tanium tin tungsten niobium lead gallium germanium
Find the spellings for these words
|ˈmɜːrkjəri| |tɪn| |ˈtʌŋstən| |naɪˈoʊbiəm| |lеd| |ˈɡæliəm| |dʒəːˈmeɪnɪəm| |tɪˈteɪniəm|
37. Match the words (1-9) to the correct meanings (a—i). Give Russian equivalents to all these words
1 assume v a) to have none or not enough of sth
2 apart from prep b) metal thread used for carrying electric current
3 below adv c) to lose heat or cause sth to lose heat
4 benefit n d) no longer possess
5 discover v e) except for
6 cool v f) an advantage that sth gives you; a helpful and useful effect that sth has
7 lack v g) in a lower position (than) , under 2 less in number or value
8 lose v h) to find sth for the first time, or sth that had not been known before
9 wire n i) to think or accept that sth is true but without having proof of it
38 . Complete the table. Explain the meanings of these derivatives.
WORD FAMILY discover WORD FAMILY lose
Nouns _______ Verbs ________ Nouns ______ Verbs ______
_______ ______ Adjectives ______
WORD FAMILY cool WORD FAMILY wire
Nouns _____ Verbs _____ Nouns ______ Verbs ______
_____ Adjectives _____ ______ Adjectives ______
_____ Adverbs _____ ______
39 . Find synonyms and antonyms
Apart from – except for, slightly- enormously, huge – tiny, expensive-cheap, below – under,
recent –latest, to vary- to change, current- modern, material-substance, to define- to determine,
aim- purpose, powerless- powerful, cooling-heating, within – outside, to apply –to use,
liquid-solid, moreover-besides,
40. Read the article. Which of the facts are not mentioned?
- most superconductors are alloys or compounds - liquid nitrogen is cheaper than liquid
- criteria by which superconductors are classified helium to produce
- the lowest theoretically possible temperature is 0K - alloys of niobium and titanium are
suitable for applications to 10 tesla
Superconductive materials
Not all materials show superconductivity. Apart from mercury, the original super conductor, you can find the effect in about 25 other elements (mostly metals such as lead, tin, tungsten, gallium, or semimetals such as germanium) though it's also been discovered in thousands of compounds and alloys (niobium-titanium, germanium-niobium). 1______________________
___________________________________________________________________________. The trouble with most of these materials is that they superconduct only within a few degrees of absolute zero (the lowest theoretically possible temperature: −273.15°C, −459.67°F, or 0K). That means whatever benefit you gain from their lack of resistance, you probably lose from having to cool them down in the first place. The idea of a power plant that gets electricity to your home down superconducting wires sounds brilliant: it would save huge amounts of wasted energy.
2_________________________________________________________________________ This is largely why superconductors have yet to make a really big impact on the world, despite being discovered almost a century ago.