1. Say whether the following statements are true or false.

1. The researchers from the University of Missouri are developing a new kind of glasses.

2. The conventional blast-resistant glass contained plastic.

3. The glass fibers used in the new technology are as thick as a pencil.

2. Give synonyms to the following words from the text:

to protect, expensive, currently, conventional, a fiber, a defect, quantity.

3. Use one of the options to fill in the gaps.

1. To make glass stronger, the researchers use glass ___.

a) tribes b) fibers c) strings

2. The composite layer inserted between sheets of glass is ___.

a) transparent b) laminated c) cracked

3. The new type of glass will be resistant to ___.

a) scratching b) heating c) explosions

Grammar Practice

1. Find all the noun chains in the text and give their translation. E.g. potential terrorist attacks – потенційні терористичні напади.

2. Find the sentences with predicates in Passive voice in the text. Define the tense of the predicate. E.g.: are made – the Present Simple Passive.

3. Find Attributive subordinate clauses in the text.

a) Try to explain the presence or absence of the comma.

b) Note that they are connected to the main clause with different conjunctions. Why?

15. What Are the Elements in the Human Body?

to come in	виявлятися	buck	амер. розм. долар
to be worth	цінитися	one’s best bet	виграшна справа
worth	вартий	to tan hide	дубити шкіру
trace amount	незначна кількість	trace elements	мікроелементи
going rate	нинішня ціна	to round up	округляти
to take a look	поглянути	to run	бути в обігу (гроші)

Most of the human body is made up of water, H₂O, with cells consisting of 65 – 90% water by weight. Therefore, it isn’t surprising that most of the human body’s mass is oxygen. Carbon, the basic unit for organic molecules, comes in second. 99% of the mass of the human body is made up of just six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus.

Have you ever wondered how much the elements in your body are worth? First, let’s take a look at the elements from which you are made. Your body is approximately: 65% Oxygen, 18% Carbon, 10% Hydrogen, 3% Nitrogen, 1.5% Calcium, 1% Phosphorous, 0.35% Potassium, 0.25% Sulfur, 0.15% Sodium, 0.15% Chlorine, 0.05% Magnesium, 0.0004% Iron, 0.00004% Iodine. Your body contains trace amounts of other elements, such as silicon, manganese, fluorine, copper, zinc, arsenic and aluminum. What is the going rate for a body’s worth of these elements? One US dollar! Are you surprised?

Let’s see if we can bump the price up a bit. If you’re looking to make a buck with your body, your best bet would be to sell individual organs, but since that’s illegal, an alternative might be to tan your hide for use as leather. Your skin would be worth about $3.50 if it were sold at the price of a cowhide, which runs around $0.25 per square foot. So, if you take a dollar’s worth of elements plus the value of your skin, you might be able to get $4.50, which we’ll round up to $5, so you’ll feel better about your chemical value.

Speech patterns

Would + Indefinite Infinitive … if + Past Indefinite
He would pass his exam if he worked harder.	Він здав би екзамен, якби він працював наполегливіше.

to be made up of = to consist of	складатися (з чогось)
Water is made up of (consists of) hydrogen and oxygen.	Вода складається з кисню і водню.