我们已5年没见面了．(It)It has been three years since we met last time．题目和参考答案——青夏教育精英家教网——

题目内容

15．我们已5年没见面了．（It）
It has been three years since we met last time．

分析 It has been three years since we met last time

解答 It has been three years since we met last time
这是陈述的一个既定的事实，主句用现在完成时，从句用一般过去时．
since引导间状语从句时，主句多用现在完成时．It has been+一段时间+since…为一固定句型，表示自从…以来有多久了．

点评熟悉常用句式的基本结构以及一些短语的搭配是解决此类题的关键．

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   Researchers from Pennsylvania State University and Duke University tracked more than 700 children from across the US between kindergarten and age 25 and found a significant correlation（相关性） between their social skills as kindergartners and their success as adults two decades later．
   In 1991，teachers assessed how the kindergartners interacted（互动） with each other socially using a range of criteria like whether they cooperate with their peers without prompting（激励），if they're helpful to others，whether they're good at understanding feelings，and if they can solve problems on their own．
Researchers then kept track of whether the students went on to graduate high school on time，get a college degree，and find and keep a full-time job by 25．They also monitored the participants'involvement with crime，drug abuse，public assistance，and mental health issues．
The results showed that socially competent（有能力的）children were far more likely to earn a college degree and have a full-time job by 25 than those with limited social skills．Those with limited social skills also had a higher chance of getting arrested，binge（放纵） drinking，and applying for public housing．
"This study shows that helping children develop social and emotional skills is one of the most important things we can do to prepare them for a healthy future，"said Kristin Schubert，program director at the Robert Wood Johnson Foundation，which funded the research，in a release．
"From an early age，these skills can determine whether a child goes to college or prison，and whether they end up employed or addicted．"
The good news，according to Damon Jones，lead author of the study，is that intervention（干预） at a young age can help improve social and emotional skills．
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A．Most kindergartners can solve problems alone．
B．Helpful children understand other's feeling better．
C．Outgoing children cooperate with their peers easily．
D．Social skills play a key role in children's development．
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B．how long it took to complete the study
C．how the researchers conducted the study
D．what factors were studied by the experts
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B．Teach them some basic living skills．
C．Tell them to keep off alcohol
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B．educators
C．doctors
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