题目内容
We are anxious about the spreading of H7N9, hoping it’ll ______ less threatening soon.
| A．turn out | B．turn down | C．turn up | D．turn on |
A
解析试题分析：考察动词短语辨析。A结果是；B拒绝，调低；C调高，出现；D打开；句意：对于H7N9的传播，我们很担心。希望结果证明不是那么的危险。根据句意说明本句中的turn out表示结果是。故A正确。
考点：考察动词短语辨析
点评：此类固定短语，在理解句意的基础上，要分清各个之间意思侧重的不同。这就要求学生在平时的学习中，遇到类似的题目需要将用法积累、牢记在脑海中，并且要学会举一反三，这样才能在多变的题目中找到不变的规律。
完形填空（共15小题；每小题2分，满分30分）
阅读下面短文，掌握其大意，然后从下列各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
The human nose is an underestimated tool. Humans are often thought to be 1___ smellers compared with animals, but this is largely because, unlike animals, we stand upright. This means that our noses are 2 to detecting those smells which float through the air, 3 the majority of smells which stick to surfaces. In fact though, we are extremely sensitive to smells, even if we do not generally realize it. Our noses are capable of 4 human smells even when these are 5 to far below one part in one million.
6 , some people find that they can smell one type of flower but not another, while others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate 7 smell receptors in the nose. These receptors are the cells which sense smells and send 8 to the brain. However, it has been found that even people insensitive to a certain smell at first can suddenly become sensitive to it when 9 to it often enough.
The 10 for insensitivity to smell seems to be that brain finds it 11 to keep all smell receptors working all the time but can 12 new receptors if necessary. This may also explain why we are not usually sensitive to our own smells we simply do not need to be. We are not 13 of the usual smell of our own house but we 14 new smells when we visit someone else's. The brain finds it best to keep smell receptors _ 15 for unfamiliar and emergency signals such as the smell of smoke, which might indicate the danger of fire.
| 1. A. sensitive | B. outstanding | C. insensitive | D. awkward |
| 2. A. limited | B. committed | C. devoted | D. conducted |
| 3. A. catching | B. ignoring | C. missing | D. tracking |
| 4. A. distinguishing | B. discovering | C. determining | D. detecting |
| 5. A. reduced | B. reserved | C. rescued | D. refused |
| 6. A. Fortunately | B. Strangely | C Happily | D. Amazingly |
| 7. A. unusual | B. particular | C. unique | D. typical |
| 8. A. signs | B. information | C. messages | D. signals |
| 9. A. subjected | B. left | C. drawn | D. exposed |
| 10A. expectation | B. expression | C. extension | D. explanation |
| 11.A convenient | B. competitive | C. inefficient | D. adequate |
| 12.A introduce | B. gather | C. develop | D. produce |
| 13.A sure | B. sick | C. aware | D tired |
| 14.A tolerate | B. resist | C. neglect | D. notice |
| 15.A available | B. reliable | C. valuable | D. suitable |