A. PHONETICS
I. Circle the word whose underlined part is pronounced differently from that of the other words.
1) A. supply B. dirty C. energy D. happy
2) A. decreased B. influenced C. endangered D. established
3) A. answer B. sweater C. swim D. switch
II. Circle the word that has stress pattern different from that of the other words.
4) A. nature B. danger C. human D. environment
5) A. exist B. species C. effect D. condition
6) A. forest B. water C. destroy D. industry
B. VOCABULARY AND GRAMMAR
* Circle the best answer for each sentence.
7) Many rare ____ o animals are in danger of extinction.
A. species B. classes C. beings D. pairs
8) People are destroying the environment by adding ____ to it.
A. pollutes B. pollutions C. pollutives D. pollutants
9) Many efforts have been made to protect ____ nature.
A. danger B. dangerous C. endanger D. endangered
10) Many species of animals are threatened and could easily become ____.
A. disappeared B. vanished C. empty D. extinct
11) Many animals are ____ for their fur and other valuable parts of their bodies.
A. hunted B. chased C. run after D. followed
12) They started a campaign to ____ smoking among teenagers.
A. encourage B. decrease C. discourage D. prohibit
13) Dinosaurs became ____ millions of years go.
A. disappear B. extinct C. lost D. endangered
14) The chemical ____ from cars and factories make the air, water and soil dangerously dirty.
A. pollution B. polluted C. pollutants D. pollute
15) Human beings are ____ for the changes in the environment.
A. account B. faulty C. blame D. responsible
16) By cutting down trees, we ____ the natural habitat of birds and animals.
A. hurt B. would C. damage D. injure
17) ____ aren’t effective anymore because insects have become resistant to them.
A. Fertilizer B. Pesticides C. Herbicides D. Composts
18) They started a campaign to ____ smoking among teenagers.
A. encourage B. decrease C. discourage D. prohibit
19) He is the singer about ____ I often tell you.
A. that B. who C. whom D. him
20) The concert ____ I listened last weekend was boring.
A. to that B. to which C. for what D. for which
Loga
Sinh Học lớp 12
