题目内容
—Why does Mary look so worried today?
—I’m not sure, but she _____ a small accident driving here.
A. must have B. might have C. must have had D. might have had
D
【解析】
试题分析:考察情态动词用法。“情态动词+have done”表示对过去情况的虚拟或者推测;“情态动词+动词原形”表示对现在情况的虚拟或者推测。句义:—为什么Mary今天看起来很担忧啊?—我不清楚,也许是在开车来的时候,出了点小事故吧!根据句义可知是对过去发生的事情的推测。Must have done一定做了某事,表示对过去所发生的事情有把握的肯定推测。Might have done也许做了某事,表示没有把握的推测。故D正确。
考点:考察情态动词用法
What is Math Anxiety?
Math anxiety or fear of math is actually quite common. Math anxiety is quite 36 to stage-fright. Why does someone suffer 37 ? Fear of something going wrong in front of a crowd? Fear of 38 the lines? Fear of being judged 39 ? Fear of going completely blank? Math anxiety conjures(使现出) up fear of some type. The fear that one won't be able to do the 40 or the fear that it's too hard or the fear of failure which often stems(起因于) from having a lack of 41 . For the most part, math anxiety is the 42 about doing the math right, our minds draw a 43 and we think we'll fail and of course the more frustrated and anxious our minds become, the 44 the chance for drawing blanks. Added pressure of having time limits on math tests and exams also cause the levels of anxiety to grow for many students.
Where Does Math Anxiety Come From?
Usually math anxiety stems(起源于) from 45 experiences in mathematics. Typically math phobias(恐慌症) have had math presented in such a fashion that it led to limited understanding. Unfortunately, math anxiety is often 46 poor teaching and poor experiences in math which typically leads to math 47 . Many of the students I've encountered with math anxiety have demonstrated an over reliance on procedures in math as opposed to actually understanding the math. When one tries to memorize procedures, rules and routines without much 48 , the math is quickly forgotten and 49 soon sets in. Think about your experiences with one concept — the division of fractions(分数). You probably learned about reciprocals(倒数) and inverses. In other words, ‘It’s not yours to reason why, just invert(反转) and multiply(乘)’. Well, you memorized the rule and it 50 . Why does it work? Do you really understand why it works? Did anyone ever use pizzas or math manipulative(巧妙处理的) to show you why it works? If 51 , you simply memorized the procedure and that was that. Think of math as memorizing all the procedures — 52 if you forget a few? Therefore, with this type of strategy, a good 53 will help, but, what if you don’t have a good memory. Understanding the math is critical. Once students 54 they can do the math, the whole notion of math anxiety can be overcome. Teachers and parents have an important 55 to ensure students understand the math being presented to them.
1. |
|
2. |
|
3. |
|
4. |
|
5. |
|
6. |
|
7. |
|
8. |
|
9. |
|
10. |
|
11. |
|
12. |
|
13. |
|
14. |
|
15. |
|
16. |
|
17. |
|
18. |
|
19. |
|
20. |
|