18．The author holds that　　　 .

　　　　 A．anxiety is a good thing　　　　　　　　 B．anxiety is a symptom of mental illness

　　　　 C．some anxiety can lead to changes for the better　　　 D．no anxiety is bad for society

17．According to the author, anxiety is the emotion when　　　 .

　　　　 A．one is filled with a sudden sense of uneasiness　 B．one sees no immediate danger

　　　　 C．one has a vague sense about his life　　　　　 D．one feels that the world may go badly

16．To get past the waterfall the guide had to　　　 .

　　　　 A．use a fallen tree as a kind of bridge　

B．cross the river above the waterfall

　　　　 C．slide down a steep river bank　　　

D．swing across the river from a high branch

E

　　　　 Anxiety is the appropriate(适当的)emotion when the immediate personal terror-of a volcano, an arrow, a stab(刺伤)in the back and other disasters, all directed against one’s self-disappears.

　　　　 The kind of world that produces anxiety is actually a world of relative safety, a world in which no one feels that he himself is facing sudden death. The anxiety exists as an uneasy state of mind, in which one has a feeling that something unspecified(不具体的)and indeterminable may go wrong. If the world seems to be going well, this produces anxiety-for good times may end. If the world is going badly-it may get worse. Anxiety tends to be without focus; the anxious person doesn’ t know whether to blame himself or other people. He isn’t sure whether it is the current year of the administration or a change in climate or the atom bomb that is to blame for this undefined sense of unease.

　　　　 It is clear that we have developed a society which depends on having the right amount of anxiety to make it work…While we agree that too much anxiety is harmful to mental health, we have come to rely on anxiety to push us into seeing a doctor about a symptom(症状)which may indicate cancer, into checking up on that old life-insurance policy which may have out-of-date provisions in it, into having a conference with Billy’s teacher even though his report card looks all right.

　　　　 People who are anxious enough keep their car insurance up, have the brakes checked, don’t take a second drink when they have to drive. People who are too anxious either refuse to go into cars at all-and so complicate the ordinary course of life-or drive so tensely and carefully that they help cause accidents. People who aren’t anxious enough take chance after chance, which increases the terrible accidents of the roads.

15．One reason why the travelers took so long to get to the river was that　　　 .

　　　　 A．it was too hot to move quickly　　　 B．there was no proper path

　　　　 C．they all tried to go different ways　　 D．they could not follow the animal tracks

14．The travelers wanted to get to the river because　　　 .

　　　　 A．it would lead them to the waterfall　　　　

B．it would show them which way to go

　　　　 C．it was the only possible way out of the mountains

　　　　 D．it was a quicker way than going over the mountains

13．Having reached the highest point on their route, the travelers expected to be able to　　 .

　　　　 A．track animals to the river　　　　　

B．put away the maps they had been using

　　　　 C．come near to the river from a different direction

　　　　 D．get down to the river without much difficulty.

12．What disadvantage does only the Imperial OEM MC7 have?

　　　　 A．No light shows when it is on　　　　　　　　　　　　 B．It requires a special cassette.

　　　　 C．It picks up background noise.　　　　　　　　　　　 D．The record button makes a noise.

D

　　　　 Having reached the highest point of our route according to plan, we discovered something the map had not told us. It was impossible to climb down into the Kingo valley. The river lay deep between mountain sides that were almost vertical(垂直).We couldn’t find any animal tracks, which usually show the best way across country, and the slopes were covered so thickly with bushes that we could not see the nature of the ground. We had somehow to break through to the river which would give us our direction out of the mountains into the inhabited lowlands.

　　　　 Our guide cut a narrow path through the bushes with his long knife and we followed in single file. Progress was slow. Then, when we thought we had really reached the river, we found ourselves instead on the edge of a cliff with a straight drop of 1,000 feet to the water below. We climbed back up the slope and began to look for another way down. We climbed slipped, sweated and scratched our hands to pieces and finally arrived at the river. Happily we came downhill along its bank without having to cut our way. However, after a few miles the river entered a steep-sided gap between rocks and suddenly dropped thirty-five feet over a waterfall. There was no path alongside it and no way round it.

　　　　 Then one of the guides saw a way of overcoming the difficulty. There was a fallen tree lying upside down over the waterfall with its leafy top resting on the opposite bank below the falls. Without hesitation he climbed down the slippery trunk to show us how easy it was. Having got to the fork of the tree, he moved hand over hand along a branch for four or five feet with his legs hanging in space, then he dropped onto the flat bank the other side, throwing his arms in the air like a footballer who has scored goal, and cheerfully waving us on.

11．Which machine is unsuitable for general use?

　　　　 A．Pearlcorder S702　　　　　　　　　　　　　　　　　　　　　　

B．Imperial OEM MC7

　　　　 C．Sony M400　　　　　　　　　　　　　　　　　　　　　　　　　　　　

D．Philips 585

10．It you want a machine which turns off automatically and weighs very little you should choose the　　　 .

　　　　 A．Pearlcorder S702　　 B．Sony M9　　 C．Sony M400　　　　　　　　 D．Philips 585

9．The machine that produces the best recording with the least unwanted noise is the　　　 .

　　　　 A．Pearlcorder S702　 B．Sony M9　　 C．Sony M400　　　　　　　　　 D．Imperial OEM MC7