题目列表(包括答案和解析)
Monarch Butterfly (金斑蝶) Profile
Monarch butterflies are known for the unbelievable mass movement that brings millions of them to California and Mexico each winter. North American monarchs are the only butterflies that make such a massive journey-up to 3,000 miles (4,828 kilometers). The butterflies must begin this journey each fall ahead of cold weather, which will kill them if they delay too long.
Monarch butterflies begin life as eggs and hatch as little worms that eat their eggshells and finally, eat the milky plants on which they were placed. When fat worms become juicy, colorful and hairy, they create a hard protective case around themselves as they enter the cocoon stage. They come out as beautifully colored, black-orange-and-white adults. The colorful pattern makes monarchs easy to identify, and the unique pattern warns their enemies that the insects are terribly tasting and poisonous.
Butterflies that come out from cocoon in late summer and early fall are different from those that do so during the longer days and warmer weather of summer. These monarchs are born to fly, and know that they must prepare for their long journey because of the changing Weather. However, only monarchs born in late summer or early fall make the move, and they make only one found trip. By the time next year's winter moving begins, several summer generations wilt have stayed and died. It will be last year's settlers' great grand children that make the trip. Yet somehow these new generations know the way, and follow the same routes their ancestors took-sometimes even returning to the same tree.
Many scientists are concerned about the eastern population of monarchs, which spend the summer east of the Rocky Mountains. This group is occurring in ever smaller numbers, and its survival now is threatened by a series of natural disasters in the Mexican winter grounds and by reduced milkweed plants in their summer home.
1．What will happen to the monarch butterflies if they don't leave in fall?
A．They can't survive the very low temperature, in winter
B．They can't keep their pattern colour in changeable weather
C．They will be blown down by the strong wind in winter
D．They will be separated from each other by the cold weather
2．Form the passage we can learn that Monarchs ____________.
A．feed on their own eggs instead of milky plants
B．experience three life stages before they can fly
C．are difficult to be picked out from other insects
D．are very delicious, though they are poisonous
3．Which of the following about Monarchs is TRUE?
A．Monarchs seem to know their ancestor's hometown
B．Only last year's settlers' grandchildren make the trip
C．All the summer generations will have stayed and died
D．Only monarchs born in early autumn make the move
4．The writer seems about the present survival situation of Monarchs.
A．confident B．worried C．disappointed D．hopeful
You may want to think twice after posting a new photo or update to your Facebook profile. That’ s because new research has found that social media use can lower some users ，sense of self-control over their lives. The research, which will be published in the Journal of Consumer Research, was based on the responses of 541 Facebook users in the United States.
"Using online social networks can have a positive effect on self-esteem(自尊)and well- being, However, these increased feelings of self-worth can have a damaging effect on behavior，” said researchers Keith Wilcox of Columbia University and Andrew Stephen of the University of Pittsburgh. ” Because consumers care about the image they present to close friends，social network use enhances self-esteem in users who are focused on close friends while searching for , information on their social network. This momentary increase in self-esteem, leads them to display less self-control after looking through a social network."
In other words, social media users had more self-esteem after using networks like Facebook. However, that momentary improvement in self-esteem lowered their self-control and led them to do what they want, even if this is not good for them .
In particular, the researchers found that social media users were more likely to do too much drinking and eating and have a higher body-mass index. Frequent Facebook users also were more likely to have certain financial problems，including a lower credit score and higher levels of debt.
The researchers tied these feelings to the observation that social media users are less likely to exhibit modesty on their profiles, since feedback is not immediate.
“These results are concerning given the increased time people spend using social networks，as well as the worldwide proliferation of access to social networks anywhere ,anytime via smartphones and other small devices，" Wilcox and Stephen wrote. “ Given that self-control is important for maintaining social order and personal health and happiness, this unnoticeable effect could have widespread impact. This is particularly true for adolescents and young adults who are the heaviest users of social networks and have grown up using social networks as a normal part of their daily lives.“
59. When may social media users lower their self-control?
A. Before browsing networks. B. While eating too much.
B. While scanning networks. D. After using networks.
60.The word " enhance" (in Para. 2) means "_____".
A. improve B. lower C. damage D. benefit
61. What quality are social media user most likely to show?
A. Self-control. B. Self-confidence.
C. Self-esteem D. Self-discipline.
62.According to the writer, Facebook can make you_____.
A. slim and rich B. fat and poor C. slim and poor D. fat and rich
You had better think twice before posting a new photo or updating it to your Facebook profile. That’s because new research has found that social media use can lower some users’ sense of self-control over their lives. The research, which will be published in The Journal of Consumer Research, was based on the responses of 541 Facebook users in the United States.
“Using online social networks can have a positive effect on self-esteem(自尊) and well-being. However, these increased feelings of self-worth can have a damaging effect on behavior.” said researchers Keith Wilcox of Columbia University and Andrew Stephen of the University of Pittsburgh. “Because users care about the image they present to close friends, social network use enhances self-esteem in them who are focused on close friends while searching for information on their social network. This momentary increase in self-esteem leads them to display less self-control after looking through a social network.”
In other words, social media users have more self-esteem after using networks like Facebook. However, that momentary improvement in self-esteem lowers their self-control and leads them to do what they want, even if this is not good for them.
In particular, the researchers found that social media users were more likely to do too much drinking and eating and have a higher body-mass index. Frequent Facebook users also were more likely to have certain financial problems, including a lower credit score and higher levels of debt.
The researchers tied these feelings to the observation that social media users were less likely to exhibit modesty on their profiles, since feedback was not immediate.
“These results are worrying given the increased time people spend using social networks, as well as the worldwide proliferation (激增) of access to social networks anywhere, anytime via smartphones and other small devices,” Wilcox and Stephen wrote. “Given that self-control is important for maintaining social order and personal health and happiness, this unnoticeable effect could have widespread impact. This is particularly true for adolescents and young adults who are the heaviest users of social networks and have grown up using social networks as a normal part of their daily lives.”
64. When may social media users lower their self-control?
A. Before looking through social networks.
B. After logging on to social networks.
C. While scanning social networks.
D. After looking through social networks.
65. What quality are social media users most likely to show?
A. Self-control. B. Self-confidence. C. Self-esteem. D. Self-discipline.
66. According to the writer, Facebook can make the users .
A. slim and rich B. fat and poor C. slim and poor D. fat and rich
You can never be too sure these days in the
There are other ways to keep burglars away from your house.
●Keep lights on around your house in the evenings. Light is a natural fright for burglars.
●Invest in a security alarm, particularly if your house is located in a remote spot. Security systems can often bring down the cost of your homeowner’s insurance premiums（费用）.
●Make sure that all windows and doors are locked and the security alarm turned on before you sleep at night or go out of the house. Avoid keeping house keys in obvious places, such as under the lamp or top of the doorframe.
●Adding an additional lock will provide extra security when you are home. The dead-lock, sometimes called an “exit-only deadbolt” is an deadbolt that doesn’t have an external（外部的）key. It’s clearly visible on the door from the outside, but can’t be broken into without destroying the door, frame, or lock itself. While the security won’t help directly when you aren’t home, the visibility may discourage an intruder from trying the door.
●Your door itself should be made of strong materials, such as one-inch thick solid hardwood or heavy metal.
64. The advice given by the writer in the passage focuses on __________.
A. how to make your house safe from burglars
B. what to do when your house is broken into
C. how to improve social security in the
D. how to run a home business
65. Some home-based entrepreneurs don’t invite clients to their home ___________.
A. to enjoy convenience outside their home
B. for reasons of their property safety
C. not to let others know their business
D. in order to avoid being seen by burglars
66. All the following are part of the writer’s advice except that the homeowner ________.
A. buy a security alarm and turn it on in the evening
B. fix an extra lock on the door for extra security
C. have the doors made of solid hardwood or heavy metal
D. keep lights on in all rooms to threaten burglars
67. What does the underlined word “intruder” most probably mean in this passage?
A. Someone who is invited to visit.
B. Someone who illegally enters the home.
C. Someone who pays regular visits to the home.
D. Someone who tries to destroy the lock.
Three armed robbers stole two Pablo Picasso prints from an art museum in downtown Sao
Paulo on Thursday, which was the city’s second high-profile art theft in less than a year. The bandits also took two oil paintings by well-know Brazilian artists Emiliano Di Cavalcanti and Lasar Segall, said Carla Regina, a spokeswoman for the Pinacoteca do Estado museum.
The Picasso prints stolen were "The Painter and the Model" from 1963 and "Minotaur, Drinker and Women" from 1933, according to a statement from the Sao Paulo Secretary of State for Culture, which oversees the museum. The prints and paintings have a combined value of $612,000, the statement and a museum official said.
About noon, three armed men paid the $2.45 entrance fee and immediately went to the second-floor gallery where the works were being exhibited, bypassing more valuable pieces, authorities said. "This indicates to us that they probably received an order" to take those specific works, Youssef Abou Chain, head of Sao Paulo's organized crime unit, told reporters at a news conference. The assailants overpowered three unarmed museum guards and grabbed the works, officials said. The robbery took about 10 minutes and the museum was nearly empty at the time. The assailants took the pieces — frames and all — out of the museum in two bags. The institution has no metal detectors.
In December, Picasso's "Portrait of Suzanne Bloch" and "O Lavrador de Cafe" by Candido Portinari, an influential Brazilian artist, were stolen from the Sao Paulo Museum of Art by three men who used a crowbar（铁撬棍）and car jack to force open one of the museum's steel doors. The framed paintings were found Jan. 8, covered in plastic and leaning against a wall in a house on the outskirts of Sao Paulo, South America's largest city. One of the suspects in that robbery — a former TV chef — turned himself over to police in January, who already had two suspects in custody（监禁）.
What did the armed men steal on Thursday?
A．Two prints by Pablo Picasso
B．Two oil painting by Brazilian artists
C．Two prints by Pablo Picasso and two oil paintings by two Brazilian artists.
D．Two prints by two Brazilian artists and two oil paintings by Picasso Pablo.
Why didn't the thieves take other more valuable works?
A．Because they didn't know that the other pieces were worth more.
B．Probably because they had received an order for the prints that they took.
C．Because they didn't have enough time.
D．Because they were in such a hurry that they couldn’t get them all.
How many people were in the museum during the robbery?
A．A lot. The museum was crowded.
B．Not too many. It was almost empty.
C．There were a lot of people outside the museum.
D．Only three of them.
According to the passage, which of the followings is TRUE?
A．In December, "Portrait of Suzanne Bloch" and "O Lavrador de Cafe" painted by Candido
Portinari were stolen.
B．There are steel doors and no detectors in Sao Paulo Museum of Art.
C．Three robbers defeated three armed museum guards and took away the works on Thursday.
D．Three suspects in the first high-profile art theft in less than a year were arrested.
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