题目内容
（请给出正确答案）
Susan, (together with) her husband and (two sons), (are) to arrive (on) the evening flight.
A．together with
B．two sons
C．are
D．on
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更多“Susan, （together with) her husband and （two sons), （are) to arrive （on) the evening flight”相关的问题
B、are
C、is
D、will be
B．will be
C．is
D．are going
A、acceptance
B、compromise
C、obedience
D、suspension
What is it about a dog&39;s gaze that makes it so charming？ A new study by Japanese scientist Miho Nagasawa seems to have found the answer, and it has to do with something called the cuddle(爱抚)chemical.
The cuddle chemical has another, more scientific name: oxytocin. Oxytocin is a substance in the blood that encourages bonding. Levels of oxytocin increase, for example, when a mother feeds her newborn baby. According to Nagasawa&39;s study, the same is true when we look deeply into the eyes of a dog.
The results of this study can tell us a lot about the history of the bond between humans and dogs. It all started somewhere tens of thousands of years ago. Scientists believe that wolves used to follow humans who were hunting large animals. The wolves would eat the food left behind by the humans.
Humans realized that they could use the wolves to help with the hunt, and eventually both species began to work together toward survival.
Over time, the wolves that interacted with the humans began to change. They became more loyal to their human partners. The wolves and humans started to depend on each other and bond with each other. These changes are what caused some of the wolves to turn into what we now know as dogs, a new specie^ evolved to better survive in their environment.
This process depended a great deal on the bond humans formed with them. And according to Nagasawa&39;s study, this bond was formed with the help of oxytocin, the cuddle chemical.
11. What do we know about oxytocin？
A.It regulates blood flow
B.It promotes bonding
C.It is in the human gene
D.It is good for health
When we look deeply into a dog's eyes, the levels of our oxytocin ____.A.reduce over time
B.go either up or down
C.are on the rise
D.remain unchanged
At the beginning wolves followed humans to ____.A.eat the food left by humans
B.guard against large animals
C.take humans for food
D.hunt large animals together
Over time some wolves turned into dogs ____.A.due to their loyalty
B.due to the changing environment
C.for better survival
D.for better cooperation
What does Nagasawa9s study aim to do？A.Explore the role of human-wolf partnership
B.Show the characteristics of the cuddle chemical
C.Explain the bond between humans and dogs
D.Understand the evolution of species
A. With the solved problem
B. With this problem being solved
C. With the problem solved
D. With this problem to solve
A. they meet
B. in the front of
C. at
D. Friday afternoon
Thirty years ago, most teenagers had bicycles, but now they are comparatively rare. (56) , motor scooters (小型摩托车) are much more common, (57) , this may seem a sign of progress but (58) the change is not necessarily for the better.
It is easy to see why young people prefer scooters. (59) , they are much faster and do not require much physical effort; (60) , you can take a passenger with you on the pillion
(后座) seat behind; (61) , they give young people a feeling of independence, because they can travel further and impress their friends. (62) , the disadvantages are equally obvious, (63) first sight, scooters are more expensive to buy and to maintain, and (64) . Those under 16 are not allowed to have them. (65) , greater freedom brings danger because speed encourages young people to take risks and as a result scooters are involved (66) more accidents, and the accidents are (67) more serious.
Bicycles are safer and easier to control. Years ago, teenagers had more experience with them because they (68) to ride as young children, and consequently knew what they were capable of. (69) , many young people overestimate what a scooter can do and pretend it has the power of a motor—cycle. (70) , the fact is that bicycles are not very safe , (71) ,in cities these days because there are more cars and drivers are not used to them and do not make allowances for them.
(72) , those who are old enough to ride scooters naturally prefer them. Those who are too young or cannot afford to buy a scooter probably find bicycles slow and uncomfortable (73) , and riding bicycles requires (74) experience of traffic than before. On balance, the change has been for the worse, (75) for the 13—and 14—year—olds, but the only safe solution would be to have special lanes (车道) for cyclists.
56. A. At the other end
B. On the contrary
C. On the other hand
D. In addition
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