Word-building.
1) Form nouns from the following words: a) equal, reliable, acid, relative, simple, complex, active. b) stability, availability, responsibility. 2) Form nouns from the following verbs, by adding -ment: agree, measure, establish, state, achieve, improve, equip, adjust, advance. 3) Form nouns from the following verbs, by adding – ion (-ation, -ition): collect, specialize, apply, calculate, combine, explain, compute, isolate, adapt, subtract, divide, multiply, investigate. 4) Form verbs from the following, using en-/-en: tight, short, deep, force, loose, strength, danger, circle, height, weak.
Structure Study
A) Put the following sentences into the Simple Past Tense, Simple Past Negative, Simple Past Interrogative: 1) Our team of scientists works at the formula for aging long and well. 2) The information seems incomplete and unreliable. 3) I understand the main problem in the experiment. 4) The students test the new measuring device. 5) The specialist finds a fresh approach. 6) Investigators draw the right conclusions. 7) The satellite in low Earth orbit experiences significant resistance. 8) The research concentrates on developing a robot which is a more effective substitute for animals. 9) The fellowship encourages outstanding scientists to continue their researches. 10) They develop a paint that reduces aerodynamic drag.
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