问题 单项选择题

下列哪一项不是影响咀嚼效率的因素().

A.牙齿的功能性接触面积

B.牙齿支持组织

C.颞下颌关节疾患

D.

E.口腔内软、硬组织的病损

答案

参考答案:D

单项选择题

Dogs are constantly learning from the reaction of human owners, picking up facial cues and anticipating their owner’s behavior, a new research suggests. The findings, published online in the journal Learning and Behavior, show that dogs essentially are always in training, and help explain how many owners unknowingly teach and reward their dog’s bad behavior.

Research conducted at the University of Florida focused on the role of eye contact and facial cues in influencing canine behavior. Earlier studies have suggested that dogs seem to know when they are being watched and even wait to perform forbidden behavior like digging in the garden when they know their owners aren’t looking. In this study, researchers studied how human cues triggered begging behavior among 35 pet dogs, 18 shelter dogs and 8 wolves raised in captivity. First the animals were taught that the human strangers helping with the experiment were reliable sources of tasty treats. The testers stood close together and called to the animal, and both offered rewards of Spam cubes or Beggin’ Strips treats.

After four rewards, the experiment began. Two testers stood against a fence or wall, about 20 feet apart and with food in their pockets. The dog was held about 20 feet away, equidistant from both testers. In one condition, one tester faced the dog while the other turned her back. In another, a tester held a book near her face, while the other tester held the book in front of her face, as if she were reading. In a third condition, one tester held a bucket near the shoulder, while the other put the bucket over her head, blocking her eyes.

Then, both testers called out to the dogs. All the animals—pet dogs, shelter dogs and wolves—ignored the person whose back was turned and sought food from the person who was looking at them. "The question was, are dogs and wolves responsive to a human’s attentional state" said Monique Udell, an assistant professor of psychology at Flagler College, Fla. But when the testers held books, it was only the domestic dogs who avoided the person who appeared to be reading the book. "In a house where they’re used to people reading books, they are sensitive to those types of cues," said Dr. Udell. Interestingly, in the bucket experiment, the animals, for the most part, were equally likely to seek food from the person with the bucket over her head as the person holding the bucket.

The experiment shows that dogs are tuned into whether humans are paying attention. "Dogs don’t have to read our minds. Dogs read our behavior," said Dr. Udell. Pet owners often get frustrated with bad dog behavior without realizing that they themselves have reinforced it, either by giving the dog a treat when they beg, skipping a bath when they protest or letting them sleep on the bed or couch.

The best title for the text is()

A. Your Dog Is Watching You

B. Dogs Are More Intelligent Than You Think

C. Dogs Are the Greatest Cheaters of the World

D. Dogs Are Often Taught to Perform Forbidden Behavior

阅读理解与欣赏

阅读下面的文字,完成下面问题。

  小知不及大知,小年不及大年。奚以知其然也?朝菌不知晦朔,蟪蛄不知春秋,此小年也。楚之南有冥灵者,以五百岁为春,五百岁为秋;上古有大椿者,以八千岁为春,八千岁为秋。而彭祖乃今以久特闻,众人匹之,不亦悲乎?汤之问棘也是已:“穷发之北有冥海者,天池也。有鱼焉,其广数千里,未有知其修者,其名曰鲲。有鸟焉,其名为鹏,背若太山,翼若垂天之云;抟扶摇羊角而上者九万里,绝云气,负青天,然后图南,且适南冥也。斥鴳笑之曰:‘彼且奚适也?我腾跃而上,不过数仞而下,翱翔蓬蒿之间,此亦飞之至也。而彼且奚适也?’”此小大之辩也。

  故夫知效一、行比一乡、德合一君、而征一国者,其自视也亦若此矣。而宋荣子犹然笑之。且举世而誉之而不加劝,举世而非之而不加沮,定乎内外之分,辩乎荣辱之境,斯已矣。彼其于世,未数数然也。虽然,犹有未树也。夫列子御风而行,泠然善也,旬有五日而后反。彼于致福者,未数数然也。此虽免乎行,犹有所待者也。若夫乘天地之正,而御六气之辩,以游无穷者,彼且恶乎待哉?故曰:至人无己,神人无功,圣人无名。

1、解释下列语句中加粗的词语的含义。

(1)众人匹之,不亦悲乎            众人:________________

(2)适南冥                        且:_______________

(3)且举世誉之而不加              劝:__________

(4)犹有所者也                    待:_____________

2、下列句子中不含通假字的一句是(     )

A、小知不及大知,小年不及大年

B、旬有五日而后反

C、御六气之辨

D、彼其于世,未数数然也

3、比较下列加字的意义和用法,判断正确的一项是(     )

①夫列子御风

②举世非之不加沮

③奚知其然也是

④而御六气之辨,游无穷

A、①②不同,③④也不同

B、①②不同,③④相同

C、①②相同,③④不同

D、①②相同,③④也相同

4、比较下列句式特点,其中不同类的一项是(     )

A、奚以知其然也

B、彼且奚适也

C、彼且恶乎待哉

D、辨乎荣辱之境

5、将选文中画横线的句子翻译成现代汉语。

  故夫知效一、行比一乡、德合一君、而征一国者,其自视也亦若此矣。

译文:___________________________________________________