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Dear Peter£¬
I have received your letter and I'm glad to explain to you the two-child policy in China£® 
                                                 
Yours£¬Li Hua£®

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¡¾ÁÁµã˵Ã÷¡¿±¾ÎĽṹ½ô´Õ£¬²ã´Î·ÖÃ÷£¬¶øÇÒʹÓÃÁ˶àÖÖ±í´ï£®allow to do sth£®ÔÊÐí×öijÊÂmake a decision ×ö¾ö¶¨give birth to Éúº¢×Óswitch to sth£®Çл»µ½
The Chinese government recently plans to change the one-child policy into two-child policy£¬meaning that every family in China is allowed to have two children£®£¨¸ß·Ö¾äÐÍ£©
Now my parents have made a decision to give birth to a second child£¬which worries me a great deal£®£¨¸ß·Ö¾äÐÍ£©

½â´ð Dear Peter£¬
 I have received your letter and I'm glad to explain to you the two-child policy in China£®
  The Chinese government recently plans to change the one-child policy into two-child policy£¬meaning that every family in China is allowed to have two children£®£¨¸ß·Ö¾äÐÍ£©Now my parents have made a decision to give birth to a second child£¬which worries me a great deal£®£¨¸ß·Ö¾äÐÍ£©Though it is good to have a brother or sister to grow up with£¬I have to share everything with him or her£®£¨¸ß·Ö¾äÐÍ£©Most importantly£¬what if the love from my parents is totally switched to the new child£¿As you have a younger sister£¬do you have similar problems£¿What's your opinion about this£¿
  Yours£¬
  Li Hua

µãÆÀ Ó¢Óïд×÷ÊÇÒ»ÏîÖ÷¹ÛÐÔ½ÏÇ¿µÄ²âÊÔÌ⣮Ëü²»½ö¿¼²éѧÉúµÄд×÷»ù´¡¶øÇÒ»¹¿¼²éѧÉúÔÚд×÷¹ý³ÌÖÐ×ÛºÏÔËÓÃÓïÑÔµÄÄÜÁ¦£®ÔÚ׫дʱҪעÒâÖ÷νÓïÒ»Ö£¬Ê±Ì¬ºôÓ¦£¬ÓôÊÌùÇеȣ®ÒªÌá¸ßÓ¢Óïд×÷ˮƽ£¬ÐèÒªÁ½·½ÃæµÄѵÁ·£ºÒ»ÊÇÓïÑÔ»ù´¡·½ÃæµÄѵÁ·£¬ÒªÓÐÔúʵ µÄÔì¾ä¡¢·­ÒëµÈ»ù±¾¹¦£¬¼´Óôʷ¨¡¢¾ä·¨µÈ֪ʶÔì³öÕýÈ·ÎÞÎóµÄ¾ä×Ó£»¶þÊÇд×÷֪ʶºÍÄÜÁ¦ ·½ÃæµÄѵÁ·ÒÔÕÆÎÕд×÷·½ÃæµÄ»ù±¾·½·¨ºÍ¼¼ÇÉ£®

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5£®When the population of the port town began to suffer from poisoning£¬the police came to find the cause of poisoning£®They thought someone was poisoning the people on purpose£¬but no one knew how it was possible£®Soon people held the view that the pork was poisoned£®It was a popular food everyone ate and it could have possibly made everyone sick£®Anyone who had possession of pork would throw it out£®Even the poorest of the poor wouldn't eat pork£®Signs were posted on poles and letters were sent to everyone to warn people of the pork£®Shortly afterwards£¬even policemen in high positions were also getting sick£®
Soon it became political and popular£®Politicians rushed to the town to talk about politics and promised how they would find the solution if they were elected£®Everyone was so sick that they didn't care about politics£®Everyone was in a position where he or she didn't know what to do anymore£®They went to the post office to mail posts out asking for help£®The poor town didn't know how to deal with the situation£®
One day£¬a well-known scientist from New York came to the town with a huge box containing many instruments and his possessions£®He went to pools and the port and made measurements£®He was quiet and polite£®Then one day he made a speech at a newspaper meeting-room to announce his findings£®
"I am sorry to say your water supply is so heavily polluted£» it is poisoned£®I know who has been poisoning you all for such a long time£®It is you who have been poisoning yourselves with pollution£®A great deal of rubbish has been thrown into the water day after day£®No one here has taken good care of the environment£®It is no wonder all of you have been sick£®"Shocked at the news£¬the people present were lost in thought£®
56£®The first paragraph is mainly aboutB£®
A£®the opinion that the pork should be thrown out     
B£®the fact that people suffer from poisoning
C£®the fact that pork was a popular food everyone ate  
D£®the news that policemen were getting sick
57£®The underlined word"it"in Paragraph 1refers to"D"£®
A£®the population of the port town began to suffer from poisoning   
B£®the cause of poisoning
C£®the pork is poisoned                
D£®someone was poisoning the people on purpose
58£®Which is the real cause of the poison£¿C
A£®The pork was poisoned£®
B£®Someone was poisoning the people on purpose£®
C£®The water supply was polluted£®
D£®People didn't care about politics£®
59£®Which of the following statements is WRONG£¿A
A£®Politicians would like to find the solution because they cared about people's lives£®
B£®A well-known scientist from New York found the cause of poisoning£®
C£®It was people who had been poisoning themselves with pollution£®
D£®Even some police officers were getting ill£®
16£®
A£®poisoned        B£®destruction       C£®survived       D£®increased      E£®especially
F£®chemicals       G£®concern          H£®decline         I£®occasionally     J£®sensitive
More recent research has shown that many kinds of amphibians£¨Á½Æܶ¯Î are declining or have become extinct£®Amphibians are animals£¬such as frogs£¬that live partly in water and partly on land£®And they have been around for over 350million years£®They have £¨41£©survived three mass extinctions£¬including the extinction of the dinosaurs£®Why are they dying out now£¿
The most serious aspect of amphibian loss£¬however£¬goes beyond the amphibians themselves£®Scientists are beginning to think about what amphibian £¨42£©decline means for the planet as a whole£®If the earth is becoming unlivable for amphibians£¬is it also becoming unlivable for other kinds of animals and human beings as well£¿
Scientists now believe that amphibian decline is due to several environmental factors£®One of these factors is the £¨43£©destruction of habitat£¬the natural area where an animal lives£®Amphibians are very £¨44£©sensitive to changes in their habitat£®If they cannot find the right conditions£¬they will not lay their eggs£®These days£¬as wild areas are covered with houses£¬roads£¬farms£¬or factories£¬many kinds of amphibians are no longer laying eggs£®
There are a number of other factors in amphibian decline£®Pollution is one of them£®In many industrial areas£¬air pollution has £¨45£©poisoned the rain£¬which then falls on ponds and kills the frogs that live there£®In farming areas£¬the heavy use of £¨46£©chemicals on crops has also killed off amphibians£®Another factor is that air pollution has led to  £¨47£©increased levels of ultraviolet £¨UV£© light£®This endangers amphibians£¬which seem to be £¨48£©especially sensitive to UV light£®
All these reasons for the disappearance of amphibians are also good reasons for more general £¨49£©concern£®These factors affect human beings£¬too£®

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