We can’t figure out ______ quite a number of insects and birds are dying out．
A．that B．as C．why D．when
______ environmental damage is done，it takes many years for the ecosystem to recover．
A．Even if B．If only
C．As if D．Once
假设你是红星中学高二（1）班的学生李华，下面四幅图描述了上学期高二年级开设选修课的过程。请根据图片的先后顺序，为校刊“英语园地”写一篇短文。词数不少于60。开头已给出，不计入总词数。
Last term , our school offered optional courses for the students in Senior 2．
你的美国笔友Lucy来信说她最近学习负担重，常常感到疲惫。请你根据以下提示给Lucy写回信。
1．调整学习方法；
2．积极锻炼；
3．其它建议。
注意：1．词数不少于50；
2．可适当增加细节，以使行文连贯；
3．开头和结尾已给出，不计入总词数。
Dear Lucy，
J learned about your trouble from, your mail．Don’t worry．
Best wishes!
Yours
Li Hua
Anxiety is your mental watchman． Its fixed pattern is to search for what may be about to go wrong．it continually, and without your conscious permission, scans your life, even when you are asleep, in dreams and nightmares．1.When it finds one, it worries it．
Along with depression and anger, anxiety is one of the bad faces of worries2.Controlled by anxiety, you will feel a lack of security and confidence． When anxiety is severe and pained, it can be a sign of a disorder, such as panic or terror．
Although anxiety seems to have a biological basis, it is habit-forming for many of us． Some of our anxious feelings are in fact wasted energy． Anxiety has gotten out of hand when it is pointless and repeated． When you are faced with a problem at work, before taking a test, or making an important decision, you will feel anxious． When you are controlled by anxiety, you are unable to control your emotions（情感） to the point of it changing your daily routine and habits．3.Or you find you are usually anxious at work or around your family．
At times, you should listen to the message of your negative emotions, as uncomfortable as they may be, and change your outward life rather than your emotional life．4.If you are worried about the dangers of your brother's new hobby, sky diving, perhaps you ought to tell him so． Taking action may relieve your anxiety．5.By learning to stop always seeking guarantee, not only can you start to undo the automatic cycle of anxiety, but also you learn that you can manage just fine without the need for constant guarantee． This in turn creates a sense of self-confidence and self-respect, which is vital to overcome anxiety．
A． For these people, saying NO to others is often of much anxiety．
B．It reviews your work, your love, your play, until it finds an imperfection．
C． Comparing anxiety with depression helps to discuss possible cures for anxiety．
D． These three common emotions are considered the cause of most mental illnesses．
E．If that doesn't work, then it's time to deal with any automatic thoughts in yourself．
F． If you are anxious about the work, you might get to the office an hour earlier every day．
G． You find yourself waking up anxious, going through the day anxious and going to bed anxious．
It is easy to lose patience with science today． The questions are pressing: How dangerous is air pollution? What about low-level radiation? When will that horrible earthquake strike California? And why can't we predict weather better? But the evidence is often described as "uncertain", forcing scientists to base their points of view almost as much on intuition（直觉）as on science．
When historians and philosophers of science listen to these questions, some conclude that science may not be able to solve all these problems any time soon． The unknowns can grow into riddles that are impossible to solve． Because of the unstable and changing state of the earth's atmosphere, for example, scientists have struggled for centuries to predict the weather with precision（精确） but failed．
The case is different for scientists of astronomy． For example, they think that the gravitational force of a nearby space vehicle, though tiny, is able to change the path of a much larger planet if the vehicle spends enough time close to it． With the aid of Newton's laws of gravitational attraction, ground controllers can predict the path of a planetary probe （探测仪）-or satellite-with incredible accuracy． They do this by calculating the gravitational force from each of the passing planets until the probe speeds beyond the edge of the solar system．A much more difficult task is to calculate what happens when two or three times of such force pull on the probe at the same time． Such procedures can, of course, be very difficult, but for experiments, they are effective．
This range of questions-from simple problems to those impossibly complex-has resulted in nicknames for various fields of study: "soft" sciences and " hard " sciences．“Soft” sciences admit a great degree of uncertainty． Academicians tend to judge fields such as sociology, psychology, and political science as “soft” because they are assumed to be understandable, of unnecessary mathematical accuracy, and concerned with everyday affairs such as interpersonal relationships． However, "hard" sciences, such as astronomy and chemistry, are said to offer precise answers． Precise definitions for "hard" sciences vary, but the characteristics of "hard" sciences include: producing testable predictions; performing controlled experiments; relying on quantifiable data and mathematical models; a high degree of accuracy and objectivity; and generally applying a pure form of the scientific method
1.We can learn from the passage that ．
A．a large planet is able to change the size of a tiny planet
B．ground controllers can affect the gravitational force of planets
C．calculating the probe speeds beyond the solar system is possible
D．predicting the weather is more difficult than predicting the path of a satellite
2.According to the author, "soft" sciences ．
A．allow for certain inaccuracy
B．focus on personal relationships
C．are based on controlled experiments
D．are rooted in data and mathematical models
3.What might be the best title for the passage?
A． Science, a Long History?
C． Science, Accurate or Not?
B． Science and Its Functions
D． Science and Its Application
4.What is the author's attitude towards science in this passage?
A． Objective． B． Sceptical．
C． Disapproval． D． Optimistic
