…………………………… TEST 1 Choose the word which has the underlined part pronounced differently from the rest. 1.a. endangered b. destroyed c. damaged d. provided 2.a. attitude b. survive c. introduce d. human 3.a. medicine b. priority c. crisis d. primary 4.a. chemical b. which c. change d. each 5.a. protect b. construction c. commercial d. climate Choose a, b, c, or d that best completes each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one. 6. It is found that endangered species are often concentrated in areas that are poor and densely populated, such as much of Asia and Africa. a. disappeared b. increased c. threatened d. reduced 7. We have to apply effective measures to save many plant and animal species _______ extinction. a. in b. from c. for d. on 8. Many species have become extinct each year before biologists can identify them. a. discover b. drain c. endanger d. destroy 9. We have plenty of time for doing the work. We _______ be hurried. a. needn't b. shouldn't c. mustn't d. mayn't 10. Although we are aware _______ the importance of environment, we still overexploit it.