题目内容
20．"Don't get discouraged，Hallie，"Kathy said，comforting her with a hug．"It sounds as if you have a bit of a mystery to solve．Maybe you should do a little spying on Maya．"Feeling better，Hallie put on her scuba gear（潜水服）again and waited．Maya，the dolphin，had been swimming playfully，but suddenly she threw herself to the back of the tank where the filter box（过滤箱）was located．She stuck her nose down behind the box and then swam away．
Hallie followed Maya．"What was she doing here？"she wondered．When she looked behind the box，her question was answered．She swam back and saw Maya was in front of Kathy with a comb in her mouth waiting for her treat．
"Maya!Where did you get that？"demanded Kathy，taking the comb and throwing her a fish．
"I know，"declared Hallie，handing Kathy a handful of items，"I followed her to the filter box and these are what I found．"
From the look on Kathy's face，Hallie knew everything was beginning to come to light．
"Do you remember the other day you said that Maya really liked her treats？"asked Kathy．"Well，I think this was more than a training exercise for Maya．Every time you found something in the tank，that meant one less fish for Maya．She couldn't bring all the items to me at once，so she found a hiding place for them．That way you came up empty-handed，but Maya would always get her treat．"
"Okay，Maya，"said Hallie facing the dolphin，"you win!The treats are all yours．"
Maya dived down，and then jumped out of the water，turning herself over in midair．Shaking their heads in disbelief，Hallie and Kathy reached for the fish．Maya deserved the treat．
21．What was the"mystery"in the story？A
A．The secret of Maya's finding the items．
B．The secret of Hallie's winning the game．
C．The reason for Maya's liking her treats．
D．The reason for Hallie's spying on Maya．
22．Maya hid the items because she considered Hallie as aB．A．spy B．competitor C．playmate D．trainer
23．At the end of the story，Hallie and Kathy thought Maya wasD．
A．energetic B．genuine C．loyal D．smart．
分析 本文主要讲述了一只聪明的海豚和2个饲养员之间的故事．
解答 21．A 细节题．根据文章内容，"Don't get discouraged，"Kathy said，comforting her with a hug．"It sounds as if you have a bit of a mystery to solve．Maybe you should do a little spying on Maya．"不要沮丧了，哈利．Kathy一边安慰一边给了哈利一个大大的拥抱．听起来你好像有很多谜团要解决．或许你该精心调查一下 Maya仔细观察一下它．结合选项，故选A
22．B 细节题．根据文章内容，．"Well，I think this was more than a training exercise for Maya．Every time you found something in the tank，that meant one less fish for Maya．She couldn't bring all the items to me at once，so she found a hiding place for them．That way you came up empty-handed，but Maya would always get her treat．"我想这对于Maya而言不仅仅是训练．每一次在水箱里找到东西的时候，那就意味着对于Maya就少了一条鱼．她不能立刻把所有的东西都立即拿给我，因此她找了一个地方把东西藏起来了．每次你空手而归的时候，她还是可以得到她的吃的．由此可知，Maya视哈利为竞争者了，结合选项，故选B
23．D 推理题．根据文章内容，Maya dived down，and then jumped out of the water，turning herself over in midair．Shaking their heads in disbelief，Hallie and Kathy reached for the fish．Maya deserved the treat．由此可知，Maya从水中跳出来，在空中翻转了一下．Hallie and Kathy面对Maya 的行为，他们都觉得她很聪明，让人不可思议．结合选项，故选D
点评 本文是人物故事类阅读理解．做这类题材阅读理解时要求考生对文章通读一遍，做题时结合原文和题目有针对性的找出相关语句进行仔细分析，结合选项选出正确答案．推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案，切忌胡乱猜测，一定要做到有理有据．
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11．President Trump announced that the United States would from the Paris Climate Agreement，which would possibly weaken efforts to fight global warming．（ ）
| A． | benefit | B． | withdraw | C． | arise | D． | suffer |
19．Prepackaged，mass-produced snack foods are hugely popular in grocery stores around the world，Many people are accustomed to choosing snack foods in grocery stores．
The first problem with packaged snack foods like cookies，crackers，and other bite-sized options is that they are often loaded with unhealthy materials．The reason for this is fairly easy to understand．Mass-produced foods need to be uniform in color，taste and so on．In order to achieve this uniformity，snack food producers use sugar，salt，and other chemical preservative（防腐剂） and coloring materials in large amounts．These materials contribute to a rather unhealthy food．
In addition to requiring uniformity of taste and appearance，mass-produced snack foods like potato chips and candies need to be shelf stable．Preservatives and complex packaging make products shelf stable，but this stability and non-perish ability（抗腐性） often come at the expense of nutrition．
One reason that pre-made snacks are so popular in grocery stores is their prices．Food producers can keep costs down by using established production facilities and processes to quickly produce a huge amount of food．Shoppers are drawn to what they see at low prices．
People who are interested in improving the quality of their snacking can use magazines，books，and the Internet to discover a lot of healthy snacking tips and ideas．Even television shows about health and food sometimes talk about healthy snacking alternatives．Some healthy snacks，like fresh fruit，require no preparation at all．
Once people are aware of the drawbacks of clearly cheap and easy snack foods，they can start turning to better options．Soon，perhaps，the old and unhealthy snack options will no longer be profitable for food producers．
The first problem with packaged snack foods like cookies，crackers，and other bite-sized options is that they are often loaded with unhealthy materials．The reason for this is fairly easy to understand．Mass-produced foods need to be uniform in color，taste and so on．In order to achieve this uniformity，snack food producers use sugar，salt，and other chemical preservative（防腐剂） and coloring materials in large amounts．These materials contribute to a rather unhealthy food．
In addition to requiring uniformity of taste and appearance，mass-produced snack foods like potato chips and candies need to be shelf stable．Preservatives and complex packaging make products shelf stable，but this stability and non-perish ability（抗腐性） often come at the expense of nutrition．
One reason that pre-made snacks are so popular in grocery stores is their prices．Food producers can keep costs down by using established production facilities and processes to quickly produce a huge amount of food．Shoppers are drawn to what they see at low prices．
People who are interested in improving the quality of their snacking can use magazines，books，and the Internet to discover a lot of healthy snacking tips and ideas．Even television shows about health and food sometimes talk about healthy snacking alternatives．Some healthy snacks，like fresh fruit，require no preparation at all．
Once people are aware of the drawbacks of clearly cheap and easy snack foods，they can start turning to better options．Soon，perhaps，the old and unhealthy snack options will no longer be profitable for food producers．
| Title：Prepackaged，mass-produced snack foods | |
| Fact | Prepackaged，mass-produced snack foods gain （81）popularity around the world． |
| （82） Characteristics/Features | •Having preservatives，coloring materials and （83）complex packaging •Having uniformity of （84）tasteand appearance •Being shelf stable •Being at low （85）prices |
| Problems | •（86）Containing/Having/Addingunhealthy materials •Being shelf stable and non-perishable leading to some nutrition （87）loss |
| Measures | •Discover healthy snacking tips and ideas by （88）usingmagazines，books，the Internet and television shows． |
| Conclusions | •People will turn to better options once （89）knowing/realizingthe drawbacks of cheap and easy snack foods． •The old and unhealthy snack foods will no longer bring （90）profit（s） to food producers |