1. Practically all species of animals communicate either through sounds or through a large repertory of soundless codes.

　　A)Simultaneously B) Almost C)Absolutely D)Basically

　　2. Sulphur has occasionally been found in the earth in an almost pure state.

　　A)regularly B) accidentally C)sometimes D)successfully

　　3. When doves are about two weeks old, they are covered with grey feathers and are ready to try their wings.

　　A)grow B)wrap C)hide D)test

　　4. When she was invited to the party, she readily accepted.

　　A)willingly B)suddenly C)firmly D)quickly

　　5. You must shine your shoes.

　　A)lighten B)clean C)wash D)polish

　　6. The majority of people around here are decent people.

　　A)honest B)rich C)good-looking D)high-ranking

　　7. A deadly disease has affected these animals.

　　A)contagious B)serious C)fatal D)worrying

　　8.Many fine cooks insist on ingredients of the highest quality.

　　A)demand B)rely on C)prepare for D)create

　　9.Since the Great Depression, the United States government has protected farmers from damaging drops in grain prices.

　　A)slight B)surprising C)sudden D)harmful

　　10.Nerve signals may travel through nerve or muscle fibers at speeds as high as two hundred miles per hour.

　　A)velocities B)impulses C)ratios D)atrocities

　　11.The poet William Carlos Williams was a New Jersey physician.

　　A)doctor B)professor C)physicist D)resident

　　12.Medicine depends on other fields for basic information, particularly some of their specialized branches.

　　A)conventionally B)obviously C)especially D)inevitably

　　13. We shall take the treasure away to a safe place.

　　A)clean B)pretty C)distant D)secure

　　14. An important part of the national government is the Foreign Service, a branch of the department of state.

　　A)a unity B)a division C)an embassy D)an invasion

　　15. The child’s abnormal behavior puzzled the doctor.

　　A)bad B)frightening C)repeated D)unusual

　　参考答案：BCDAD ACADA ACDBD