Unit 2 阅读理解专练
展开The first thing t knw is that the mn itself is never really blue. This is just an expressin. In fact, the phrase “blue mn” has t d with the shape f the mn, nt the clr.
As the mn travels arund the earth, it appears t change shape. We assciate (联系) certain names with certain shapes f the mn. Fr example, when we can see a small part f the mn, it is called a crescent mn. A crescent is a shape that lks like the tip (尖端) f a fingernail (指甲) When we cannt see the mn at all, it is called a new mn. When we can see the whle mn, it is called a full mn. Usually, there is nly ne full mn every mnth. Smetimes, hwever, there will be tw full mns in ne mnth. When this happens, the secnd full mn is called a “blue mn”.
Over the next 20 years, there will nly be 15 blue mns. As yu can see, a blue mn is a very rare event. This fact has led peple t use the expressin “nce in a blue mn” t describe ther very rare events in their lives.
1. Which f the fllwing wuld be a gd example f using the phrase “nce in a blue mn”?
A. Simn ften tells jkes. Simn tells jkes nce in a blue mn.
B. Tm rarely remembers t d exercise. Tm des exercise nce in a blue mn.
C. Mary likes t g shpping every weekend. Mary ges shpping nce in a blue mn.
D. Cindy hates t stay up, but she stays up every day. Cindy stays up nce in a blue mn.
2. When des a blue mn happen in nature?
A. When the mn has a blue clr.
B. When we cannt see the mn at all.
C. When there are tw full mns in ne mnth.
D. When we can nly see a small part f the mn.
3. Which f the fllwing is anther example f smething that has a crescent shape?
A. The letter “0”.B. The letter “M”.
C. The letter “H”.D. The letter “C”.
4. Hw ften will a blue mn happen ver the next twenty years?
A. Once a year.
B. Less than nce a year.
C. Mre than nce a year.
D. At least twice a year.
5. What des the underlined part “This fact” in the last paragraph refer t (所指)?
A. A blue mn is a very rare event.
B. The mn appears t change shape.
C. The mn itself is never really blue.
D. A blue mn has t d with the shape f the mn.
参考答案及解析
1. B 通读全文、特别是最后一句可知,只有很难出现的事才用这个短语表达。而四个选项中只有B项符合这种情况。故选B。
2. C 由第三段最后两句话可知,在自然界中有时一个月出现两次满月,第二次满月便称为a blue mn。故选C。
3. D 由第三段“A crescent is a ”可推断选D。
4. B 由最后一段第一句话“Over the next 20 years, there will nly be 15 blue mns.”可知选 B。
5. A 由最后一段最后一句可推断,这个事实是指蓝月亮的出现是概率很小的事件。故选A。
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