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Mark the following statements T (True), F (False) or N (Not mentioned)



1. A nanometer is the smallest thing occurring in nature.

2. Molecules are the basic units of life.

3. Viruses have nanoscale dimensions.

4. Nanoscale gets so much attention because this is where many of the mechanisms of the biological and physical world operate.

5. At scales above 100 nm gold looks yellow, but at scales below 100 nm it has other colors.

6. The developments of nanotechnology are already used in different products.

7. Smaller and faster chips will make computers smaller and enable them to perform many more functions more quickly.

8. Scientists, engineers and technologists are sure they know everything about nanotechnology.

7.5 Put the following things in the order of their size, from the smallest to the biggest one:

Virus nanometer molecule human hair human cell atom

Match the words and their meaning.

1. arbitrary 2. enhance 3. extremely 4. occur 5. refer to 6. roughly 7. scale 8. throughout a) happen or exist b) improve c) in every part of d) not exactly e) size or level f) speak about g) very h) without any reason or plan

Fill in the gaps with the words from 7.6 in the appropriate form.

1. Nanotechnology is the science of building _____ small things.

2. In the future, we'll be able to work on nano_____ and build things atom by atom.

3. A nanometer is _____ ten times the size of an individual atom.

4. Nanotechnology will help _____ computer performance greatly.

5. The manipulation of atoms or small groups of atoms to manufacture materials and devices _____ as bottom-up approach in nanotechnology.

6. Nanoscale was not chosen _____ly. It is where the properties of materials are profoundly different from the properties of materials _____ in nature.

Translate into English.

1. Нанотехнология – это создание функциональных материалов, устройств и систем при работе с веществом в масштабе от 1 до 100 нанометров.

2. Ученые ожидают, что на наноуровне будут открыты новые явления, которые будут использоваться в передовых технологиях.

3. Люди уже знали об особых свойствах, проявляемых материалами на наноуровне, хотя они и не понимали, почему это происходит.

4. Добавив мельчайшие частицы золота в стекло, можно получить цвет от желтого до зеленого и красного в зависимости от размера этих частиц.

5. Структурируя вещество на наноуровне, можно влиять на основные свойства материалов, не изменяя их химический состав.

6. Полупроводниковые нанопровода – это одномерные структуры с уникальными электрическими и оптическими свойствами, используемые в качестве элементов наноустройств.



 

Match the words and their meaning.

1. in a nutshell 2. to take sth for granted 3. to arrange 4. randomly   5. amazing 6. incredible a) without any definite plan, aim, or pattern b) in a short, clear way c) surprising or difficult to believe d) to expect sth to be always there never thinking how important or useful it is e) to put a group of things in a particular order or position f) very pleasant in an unexpected way

 

Listen to Marshall Brain, founder of HowStuffWorks, a resource Web site explaining how the world around us works, talking about nanotechnology and choose the correct ending for the sentences below.

1. Diamond, graphite and soot have different properties because

a) they consist of different atoms.

b) the same atoms in them are arranged in different ways.

c) different methods are used to obtain them.

d) nanotechnology is used to make them different.

2. Nanotubes will make it possible to create a space elevator because

a) they are very strong and light.

b) they can be shaped into a ribbon up and down which the space elevator will run.

c) they can withstand the conditions of the open space.

d) they are obtained using nanotechnology.

3. Batteries with nanogranules work better because

a) everything made using nanotechnology works better.

b) nanogranules can change their properties when the battery is recharged.

c) nanogranules last longer.

d) nanoparticles have large surface area.

4. The nanotechnology methods used to obtain new materials involve

a) moulding plastic materials into nanoparticles.

b) cutting big pieces of materials into smaller particles.

c) assembling the new material atom by atom.

d) using cultured cells to produce the necessary compounds.

 





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