“Must we start the experiment now?” “No, you________.”A.won’tB.needn’tC.can’tD.may not
A.won’t
B.needn’t
C.can’t
D.may not
- · 有4位网友选择 B,占比44.44%
- · 有3位网友选择 C,占比33.33%
- · 有1位网友选择 D,占比11.11%
- · 有1位网友选择 A,占比11.11%
A.won’t
B.needn’t
C.can’t
D.may not
We must start right away, ______ we will miss the plane.
A.because
B.but
C.or
A.the reason that
B.the reason for why
C.why that
D.why
听力原文:M: When shall we start our work, Cindy?
W: Tomorrow at 10 o'clock. But we must work quickly, for we have to finish everything before 3 in the afternoon.
Q: For how long can they work?
(13)
A.3 hours.
B.4 hours.
C.5 hours.
D.6 hours.
听力原文:W: Congratulations ! I know you got a job. When do you start work?
M: You must be thinking of someone else. I'm still waiting to hem'.
W: Oh, sorry. Wish you good luck!
What do we learn from the man's reply?
A.The woman should get another job.
B.The woman was mistaken.
C.The man won't have to wait much longer.
D.The man was waiting in the wrong place.
听力原文:M: Let' s see if the basketball game has started yet.
W: Started? It must be clear who is winning by now.
What can we infer from the conversation?
A.Now it is a good time to start the game.
B.The game has been going on for a long time.
C.She is sure who is going to win.
D.The same team always wins.
从供选择的答案中选出应填入下列英文语句中______内的正确答案。
Say there are ten thousand computer shops in the U.S. and Canada. If each shop has a thousand programs, and if half of these programs use the data(1)more than just printing, we are thinking(2)five million programs that must(3)during the next years to take care of the year 2000 changeover. Several hundred thousand programs need(4). And that is only if we start right now. All of this will be in addition to the ongoing maintenance and development work that must(5).
But that doesn't have to be the outcome. Water shortages do not have to trouble the world- if we start valuing water more than we have in the past. Just as we began to appreciate petroleum more after the 1970s oil crises, today we must start looking at water from a fresh economic perspective. We can no longer afford to consider water a virtually free resource of which we can use as much as we like in any way we want.
Instead, for all uses except the domestic demand of the poor, governments should price water to re- fleet its actual value. This means charging a fee for the water itself as well as for the supply costs.
Governments should also protect this resource by providing water in more economically and environmentally sound ways. For example, often the cheapest way to provide irrigation (灌溉) water in the dry tropics is through small--scale projects, such as gathering rainfall in depressions (凹地)and pumping it to nearby cropland.
No matter what steps governments take to provide water more efficiently, they must change their institutional and legal approaches to water use. Rather than spread control among hundreds or even thousands of local, regional, and national agencies that watch various aspects of water use, countries should set up central authorities to coordinate water policy.
What is the real cause of the potential water crisis?
A.The world population is increasing faster and faster.
B.Half of the world's water resources have been seriously polluted.
C.Humanity has not placed sufficient value on water resources.
D.Only half of the world's water can be used.
听力原文: In order to diagnose and treat abnormal behavior, we have to start with clear definitions of what's meant by abnormal and normal. Criteria must be worked out for distinguishing one from the other in actual clinical cases. The word abnormal implies a deviation from some clearly defined norm. In the case of physical illness, the boundary lines between normality and pathology are often clearly delineated by medical science, making it easier to diagnose. On the psychological level, however, we have no ideal model to use as a base of comparison, nothing to help us distinguish mental health from mental disorder. The problem of defining abnormal behavior. via establishing just what is meant by normal behavior. has proved extremely difficult. However, as chapter 5 outlines, several criteria have been proposed. One norm described in detail in your text is personal adjustment. An individual who was able to deal with problems effectively without serious anxiety or unhappiness or more serious symptoms is said to be well adjusted. Personal adjustment as a norm has several serious limitations though. For example, it makes no reference to the individual's role in the group. How're we going to classify, for example, the a typical politician or businessperson who engages in unethical practices. Either might be a successful, happy, well-adjusted individual. Obviously, the welfare of the group, as well as that of the individual, must be considered, which brings me to the next approach.
(48)
A.It is difficult to define
B.Its causes are often unknown
C.Psychologists disagree about how to treat
D.Its symptoms often go unnoticed
It seems that only when government decides it can afford tax in centives or production sacrifices is there any initiative for change. Where is industry's and our recognition that protecting mankind's great treasure is the single most important responsibility? If ever there will be time for environmental health professionals to come to the frontlines and provide leadership to solve environmental problems, that time is now.
We are being asked, and, in fact, the public is demanding that we take positive action. It is our responsibility as professionals in environ mental health to make the difference. Yes, the ecologists, the environ mental activists and the conservationists serve to communicate, stimulate thinking and promote behavioral change. However, it is those of us who are paid to make tile decisions to develop, improve and enforce environ mental standards, I submit, who must lead the change.
We must recognize that environmental health issues do not stop at city limits, county lines, state or even federal boundaries. We can no longer afford to be tunnel-visioned in our approach. We must visualize is sues from every perspective to make the objective decisions. We must ex press our views clearly to prevent media distortion and public confusion.
I believe we have a three-part mission for the present. First, we must continue to press for improvements in the quality of life that people can make for themselves. Second, we must investigate and understand the link between environment and health. Third, we must be able to communicate technical information in a form. that citizens can understand. If we can accomplish these three goals in this decade, maybe we can finally stop environmental degradation, and not merely hold it back. We will then be able to send pollution dollars truly on prevention rather than on bandages.
we can infer from the first two paragraphs that the industrialists disregard environmental protection chiefly because______.
A.they are unaware of the consequences of what they are doing
B.they are reluctant to sacrifice their own economic interests
C.time has not yet come for them to put due emphasis on it
D.it is difficult for them to take effective measures
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