He was inexperienced and lack of preparation, so his first experiment was（）to fail.
A.foreseen B.destined C.predicted D.considered
At last she left her house and got to the airport, only（ ）the plane flying away.
A.having seen B.to have seen C.saw D.to see
With the combination of intelligence and （ ）skills, people have found ways to use plant and animal resources, mineral ores, fuels, and many other of Earth's materials and resources.
A.plausible B.elegant C.exterior D.manual
六十整岁望七十如攀高山。不料七十岁居然过了。七十岁开始可以诸事不做而拿退休金，不愁没有一碗饭吃，自由自在，自得其乐。要看书可以随便乱翻。金庸、梁羽生、克里斯蒂、松本淸张，从前哪能拜读？现在可以了。随看随忘，便仍在一边。无忧无虑，无人打扰，不必出门而自有天地。真是无限风光在老年。偶尔有人来，不论男女老少认识不认识，天南地北，天上地下，天文地理，谈天说地，百无禁忌。我的话匣子一开，激光磁盘便响个不停，滔滔不绝。无奈我闲人忙，听众逐渐稀少，终于门庭冷落，只剩下一屋子广阔天地,任我独往独来，随意挥洒。
Nobody likes insects. They are（1）and sometimes dangerous. Some of them bite us and give us（2）; others bite us and give us big red spots. Some do not bite; but they just fly around our heads or crawl around our houses and gardens. And we do not like any of them（3）those lovely butterflies.But insects are interesting. First they are very（4）animals. Three hundred and twenty million years ago there were no men and other（5）in the world but there were insects. Today, on every square mile of land there are millions of them flying and crawling（6）. Second, insects are very（7）to their habitat, to their food and to the weather. Now there are about a million different species in the world. Then（8）do people use insecticides?Not many insects hurt us. In many cases we do not see the insects and we do not think much about them. The（9）is that insects eat so much of man’s food（10）there are so many billions of them. So we must use insecticides to（11）them.An insecticide is simply a special chemical（12）with some poisonous elements. Farmers（13）their crops very often and the insects die very quickly. Of course some poisonous chemicals（14）on the crops or in the（15）, and that is also dangerous to our health.
A.wicked B.exciting C.troubling D.annoying
问题2：
A.wounds B.disease C.illness D.sickness
问题3：
A.besides B.but C.including D.except
问题4：
A.old B.delicate C.small D.weak
问题5：
A.mammals B.cats C.reptiles D.birds
问题6：
A.over B.above C.about D.lip
问题7：
A.suitable B.adaptable C.agreeable D.changeable
问题8：
A.when B.how C.where D.why
问题9：
A.differences B.condition C.method D.reason
问题10：
A.so B.or C.and D.for
问题11：
A.put an end to B.take care of C.get rid of D.get rid of
问题12：
A.medicine B.sections C.compound D.material
问题13：
A.spray B.cover C.clean D.splash
问题14：
A.drop B.disappear C.stay D.leave
问题15：
A.soil B.dirt C.earth D.mud
The three climbers can employ a guide to（ ）them on their way up the mountain.
A.guide B.conduct C.lead D.direct