The boy was about to dive into the river he found a catfish swimming in the river．( )A．afterB．whileC．whenD．until 题目和参考答案——青夏教育精英家教网——

题目内容

4．The boy was about to dive into the river _____he found a catfish swimming in the river．（　　）

A．

after

B．

while

C．

when

D．

until

分析男孩正要跳入河里，这时他发现河里有条鲶鱼在游动．

解答答案是C．考查英语的固定句型，be about to do…when…是某人正要干某事的时候就在这时某事发生，根据句意：男孩正要跳入河里，这时他发现河里有条鲶鱼在游动，所以答案选C．

点评对于英语中固定句型的考查，需要考生在平时的学习中积累句型，掌握句型，根据句意和句子结构的要求选择合适的句型，然后选出正确的答案．

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Sudbury Vallev School admits anyone who wants to enroll（注册）between the ages of 4and 18．Many parents send their kids from a young age because they believe that kids do best when they learn what they want to learn．Other students come to Sudbury because they had various issues in traditional school systems including rebellion，learning difficulties，and  emotional problems．
Sudbury is administered through a democratic process where every student and staff member has an equal vote．In fact，students outnumber staff 20 to 1．There's no age  segregation（差别）；four-year-olds can hang out with teenagers．Many staff members are part time and have rich careers as historians，businessmen，psychologists，artists，among others．
Learning is self-directed and occurs informally through having conversations，starting  projects．reading for enjoyment，and playing games．If students are interested in a particular topic，they work with staff and other students to organize courses and find resources．The  requirement for getting a high school diploma is to write an essay about how they are prepared t0be an adult．95%of students graduate．90%of graduates end up going to college，better than the national average of 66%．
Most graduates say that they benefited from a self-directed education because they were  more motivated than their peers，lacked fear of authority figures，and got a head start in their field of interest．They work hard at doing the things they love to do．

51．From Paragraph 1，we can know thatB．
A．there are curriculums and tests in the school
B．children can control their education freely in the school
C．the school has been a"democratic school"for 50years
D．the school thinks their children lack curiosity
52．Paragraph 2mainly talks aboutD．
A．How parents send their children there
B．When parents send their children there
C．What children do in Sudbury Valley School
D．Why parents send their children there
53．Which of the following shows the school is democratically managed？A
A．Students have the same right as staff in voting．
B．There are as many students as staff members．
C．The students are of the same age．
D．All staff members work part-time．
54．How can the students in Sudbury get their diploma？D
A．By having conversations．     B．By reading for enjoyment．
C．By playing games．            D．By submitting a qualified paper．
55．Most graduates'attitude towards Sudbury Valley School's education might beC．
A．unclear    B．negative    C．positive   D．doubtful．

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were introduced