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课时作业（十五)　Unit 5　
Section Ⅲ　Developing ideas, Presenting ideas & Reflection
阅读理解
A
    At an outdoor restaurant， a cockroach (蟑螂) flew in and landed on a woman。  She started screaming out of fear; with a panic。stricken face and trembling voice， she started jumping， with both her hands desperately trying to get rid of the cockroach. Her reaction was spreading， as everyone in her group also got into a panic.  The woman finally managed to flick the cockroach away but it landed on a man in the group who continued th
react to和respond to的区别e drama。  In the relay (接力赛)  of throwing， the cockroach next fell upon a waitress who had rushed to their rescue.
  The waitress stood firm， calmed herself and observed the behavior of the cockroach on her blouse. When she was confident enough， she grabbed it and threw it out of the restaurant。
    Sipping my coffee and watching the amusement, I started wondering： was the cockroach responsible for their funny behavior？ If so， then why was the waitress not disturbed？ She handled the situation to near perfection， without panic.
    It was not the cockroach, but the inability of the customers to handle the disturbance caused by the cockroach that disturbed them。 I realized that it was not the shouting of my children or my boss or my wife， but my inability to handle the disturbances caused by their shouting that disturbed me.
It’s not the traffic jams on the road that disturb me, but my inability to handle the disturbanc
e caused by the traffic jams. More than the problem, it’s my reaction to the problem that creates chaos in my life.
I understood。 I should not react in life。  I should always respond。 The customers reacted, while the waitress responded. Reactions are always instinctive (本能的)，  while  responses tend to be well thought out.
1．What happened in the outdoor restaurant?
A．A cockroach was found in a woman's food and then a man found the same problem。
B．A cockroach appearing in the restaurant caused a state of panic among the customers。
C．The waitress had to apologize to the customers for a cockroach.
D．A woman and a man were trying to rescue the waitress from the cockroach.
2．What's the meaning of the underlined word in Paragraph 5?
A．Disturbance.  B．Success。
C．Frustration.  D．Harmony。
3．According to the passage, if you ran into a traffic jam, you might as well ________
A．complain your delay
B．feel upset and annoyed
C．relax yourself by listening to music
D．expect someone to clear the road right away
4．What does the passage tell us？
A．Speak less，  do more!
B．Actions speak louder than words！
C．Mind your manners while in a restaurant!
D．Don’t react just from your feelings； respond positively！
B
People have been wondering why elephants do not develop cancer even though they have lifespans that are similar to humans, living for around 50 to 70 years.
      Now scientists believe they know why。 A team at the University of Chicago has found that elephants carry a large number of genes that stop tumors developing. To be precise， they found 20 copies of an anti.tumor gene called TP53 in elephants。 Most other species， including humans， only carry one copy.
        According to the research, the extra copies of the gene improve the animal’s sensitivity to DNA damage， which lets the cells quickly kill themselves when damaged before they can go on to form deadly tumors。
      “An increased risk of developing cancer has stood in the way of the evolution(进化)  of large body sizes in many animals，” the study author Dr。 Vincent Lynch told The Guardia
n。 If every living cell has the same chance of becoming cancerous， large creatures with a long lifespan like whales and elephants should have a greater risk of developing cancer than humans and mice. But across species, the risk of cancer does not show a connection with body mass。

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