Match the words with their antonyms.
1) convex 6)distribute a) straight f) horizontal
2) sloped 7) thick b) simple g) wide
3) stability 8) narrow c) instability h) curved
4) complicated 9) vertical d) collect i) thin
5) dissipate 10) submit e) appear j) resist
Find in the text the synonyms of the following words.
1) performance - … 3) function - … 5) final - … 7) basis - …
2) difficult - … 4) oppose - … 6) outline - … 8) weight - …
Choose the odd word.
1) shape / profile / form / silhouette / outline / surface
2) to obtain / to achieve / to gain / to create / to acquire
3) to act / to carry out / to execute / to fail / to function / to work
4) approach / attitude / manner / technique / achieve
5) to stand / to remove / to withdraw / to displace / to eliminate / to delete
6) to resist / to move / to confront / to counteract / to oppose / to withstand
Fill in the correct prepositions then choose any five items and make sentences.
1) to be curved ___ plan; 2) to be capable ___ resisting; 3) to be ___ concrete; 4) ___ comparison ___ smth.; 5) because ___ the narrow base; 6) an approach ___ arch analysis; 7) to be design ___ this basis; 8) ___ usual manner; 9) to take care ___ smth.; 10) to be similar ___ smth.; 11) to provide ___ smth.