A dolphin' s skin has very little resistance to flowing water.-考呗网

英语四级

单选题A dolphin' s skin has very little resistance to flowing water.

信息明示题。题干：海豚的皮肤对水流几乎没有阻力。题干关键词是very little resistance to flowing water。M段提到A dolphin’s skin is made up in such a way that it offers very little resistance to the water flowing over it．与题干吻合，故选M。

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1Other animals would be slowed by turbulent water, while dolphin can race through at a high speed

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2Questions are based on the following passage.
What you can remember from age 3 may help improve aspects of your life far into adulthood. Children who have the ability to recall and make sense of memories from daily life--the first day of preschool, the time the cat died--can use them to better develop a sense of identity, form relationships and make sound choices in adolescence and adulthood, new research shows.
While the lives of many youngsters today are heavily documented in photos and video on social media and stored in families' digital archives ( 档案馆), studies suggest photos and videos have little impact. Parents play a bigger role in helping determine not just how many early memories children can recall, but how children interpret and learn from the events of their earliest experiences. Children whose parents encourage recalling and storytelling about daily events show better coping and problem-solving skills by their preteens, and fewer symptoms of depression, research shows.
Some memories help build a sense of self-continuity ( 自我延续), or personal identity, says a 2011 study. People recall these memories when they "want to feel that I am the same person that I was before", or "when I want to understand how I have changed from who I was before". A hurricane survivor, for example, might recall the memory as proof that she can survive tough experiences and grow stronger as a result.
Other memories serve a directive function, and guide behavior. People recall these when making decisions or to avoid repeating past mistakes. A person whose dog was killed by a car is likely to call on that memory when deciding to keep pets on a leash.
A third type, social-bonding memories, involve relationships with others. People recall these when they want to strengthen relationships or form new ties, the study says. A college student who participated in a different study cited bedtime-reading sessions with his father, who read him the entire Lord of the Rings trilogy, as a motivator to build and maintain strong family ties in his adult life.
The ability to draw on all three types of memories predicts higher psychological well-being, a greater sense of purpose and more positive relationships, according to a study of 103 college students published last year in the journal Memory.
What can we conclude from Para.1 ?

A．Early memories are usually difficult for adults to forget.
B．Early memories are significant for some aspects of adulthood life.
C．Early memories can help children have a happy life.
D．Early memories are mainly about preschool and cats.

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3 From Para.2, we get to know that photos and videos _________.

A．record most of parents' early lives
B．can help children recall their early memories easily
C．usually take the place of children' s early memories
D．can' t play an important role as early memories do

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