Grammar reference and practice
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Unit 1: The Tenses of Active Voice
I. Translate the words in the parenthesis and put them into the correct Tense in Active voice.
A. Twenty percent of the human body is made up of protein. Protein (играть/ойнау) a crucial role in almost all biological processes and amino acids (быть/ болу) the building blocks of it.
A large proportion of our cells, muscles and tissue is made up of amino acids, meaning they (выполнять/орындау) many important bodily functions, such as giving cells their structure. They also play a key role in the transport and the storage of nutrients. Amino acids (иметь/болу) an influence on the function of organs, glands, tendons and arteries. They (быть/болу) furthermore essential for healing wounds and repairing tissue, especially in the muscles, bones, skin and hair as well as for the removal of all kinds of waste deposits produced in connection with the metabolism.
B. Essential amino acids Humans can (производить/жасау) 10 of the 20 amino acids. The others must be supplied in the food. Failure (достичь/жету) enough of even 1 of the 10 essential amino acids, those that we cannot make, results in degradation of the body's proteins—muscle and so forth—to obtain the one amino acid that is needed. Unlike fat and starch, the human body (нехранит/ сақтамайды) excess amino acids for later use—the amino acids must (быть/болу) in the food every day.
II. Translate the words in the parenthesis and put them into correct Tenses in Active voice
My group mate just (to publish) an article about threonine and (to be going to) get a certificate confirming that from the nearest post-office.
Scientists recently (to prove) that there are essential and non-essential amino acids.
You should (to do) this research about non-essential amino acids but you (not to do).
You (to know) what amino acid (to be) responsible for metabolism?
While you (to speak) on the phone with your scientific teacher, we (to discuss) new investigations made upon tryptophan’s role in psychiatric treatment.
I (to perform) the project about non-essential amino acids by 2 o’clock tomorrow.
By this time next year I (to make) a research about the influence of amino acids upon human’s well-being for 5 years already.
I (to fill in) the charts since early morning and I (to find) very interesting information about histidine here.
I (to come) to the office, (to switch on) the light, (to open) the bookkeeping files of our drug -store and (to start) making the accounting.
When you (to come) to my place yesterday, I (to read) already an article about amino acids and (to knew) everything on this topic.
Unit 2: The Tenses of Passive Voice
TO BE+PARTICIPLE II
PARTICIPLE II = V(ed)/V3