单选题Peasants had lost many of their relatives and friends, and had reaped an ironic comfort harvest of ______land.

单选题The little girl is ignorant ______ the basic rules of English grammar.

单选题{{B}}Directions:{{/B}} For each blank for questions 21- 35 in the following passage, choose the best answer from the choices given following the passage. Then blacken your answer in the corresponding space on your Answer Sheet {{U}} (21) {{/U}} summary of the physical and chemical {{U}}(22) {{/U}} of life must begin, not on the Earth, but {{U}}(23) {{/U}} the Sun; in fact, {{U}}(24) {{/U}} the Sun's very center. {{U}}(25) {{/U}} is here that is to be found the {{U}}(26) {{/U}} of the energy that the Sun constantly {{U}}(27) {{/U}} space {{U}}(28) {{/U}} light and heat. This energy is liberated at the center of the Sun as billions upon billions of nuclei hydrogen atoms {{U}}(29) {{/U}} each other and {{U}}(30) {{/U}} to form nuclei of helium, and, {{U}}(31) {{/U}} doing so, {{U}}(32) {{/U}} some of the energy that is stored in the nuclei of atoms. The output of light and heat of the Sun {{U}}(33) {{/U}} that some 600 million tons of hydrogen {{U}}(34) {{/U}} helium in the Sun every second. This the Sun {{U}}(35) {{/U}} for several thousands of millions of years.

单选题Distributing which of the following publications would be most likely 1o encourage Aleuts to make more use of English?

单选题The rain was so heavy that the man was wet to the skin; his whole body was______and trembling. A. stiff B. straight C. steady D. hard

单选题{{B}}Passage Four{{/B}} If a mother pushes her small son in a swing, giving only a light force each time he returns, eventually he will be swinging quite high. The child can do this for himself by using his legs to increase the motion, but both the mother's push and the child's leg movements must occur at the proper moment, or the extent of the swing will not increase. In physics, increasing the swing is increasing the amplitude; the length of the rope on the swing determines its natural oscillation period. This ability of an object to move periodically or to vibrate when stimulated by a force operating in its natural period is called resonance. Resonance is observed many times without consciously thinking about it; for example, one may find an annoying vibration or shimmy in an automobile, caused by a loose engine mount vibrating with increasing amplitude because of an out-of-round tire. The bulge on the tire slaps the pavement with each revolution; at the natural resonance point of the engine mount, it will begin to vibrate. Such vibrations can result in considerable damage if allowed to persist. Another destructive example of resonance is the shattering of a crystal goblet by the production of a musical tone at the natural resonant point of the goblet. The energy of the sound waves causes vibration in the glass; as its amplitude increases, the motion in the glass exceeds the elasticity of the goblet, and it shatters. An instrument called a tachometer makes use of the principle of resonance. It consists of many tiny bars, loosely fastened together and arranged so that each bar can slide independently of the others. Movement of the bars causes changes in a dial. When placed next to a rotating motor or engine, the tachometer picks up slight vibrations which are transferred to the resonant bars. These bars begin to move, and the resulting dial may be read to find the revolutions per minute of the motor very quickly.

单选题Among 169 cases, the smokers______85. 79% , and the ratio between males and females is 3. 7 to 1.

单选题According to the passage, left-handedness ______.

单选题Two trucks were reported to have ______ head-on yesterday. A. bumped B. crashed C. collided D. struck

单选题The candidate has an impressively ______ range of interests and experience. A. diverse B. vivid C. mobile D. alive

单选题The dancers for the ballet were selected for similarity of height and build so that they might present a (an) ______ appearance. A. ultimate B. deceptive C. homogeneous D. unanimous

单选题A short but heavy shower brought the ______ to a halt and everybody went home.

单选题The city is an important railroad ______ and industrial and convention center. [A] conjunction [B] network [C] junction [D] link

单选题The amendments (of) the laws on patent, trademark and copyright (have enhanced) protection of (intellectual property) rights and (made them conform) to WTO rules.

单选题Very few people understood his lecture, the subject of which was very ______. [A] intelligible [B] obscure [C] dim [D] conspicuous

单选题Warm-blooded animals maintain a steady temperature by ______.

单选题Jean doesn't want to work right away because she thinks that if she______ a job she probably wouldn't be able to see her friends very often.