It's an annual back-to-school routine．One morning you wave goodbye，and that __1__ evening you're burning the late-night oil in sympathy．In the race to improve educational standards, __2__ are throwing the books at kids．__3__ elementary school students are complaining of homework __4__．What's a well-meaning parent to do?
As hard as __5_ may be，sit back and chill，experts advise．Though you've got to get them to do it，by __6__ too much，or even examining __7__ too carefully，you may keep them __8_ doing it by themselves．"I wouldn't advise a parent to check every __9__ assignment，"says psychologist John Rosemond，author of Ending the Tough Homework．"There's a __10__ of appreciation for trial and error．Let your children __11__ the grade they deserve."
Many experts believe parents should gently look over the work of younger children and ask them to re-think their _12__．But "you don't want them to feel it has to be __13__ ，"one teacher says．That's not to say parents should __14__ homework-first，they should monitor how much homework their kids __15__.Thirty minutes a day in the early elementary years and an hour in __16__ four，five，and six is standard，says Rosemond．For junior-high students it should be _17__ more than an hour and a half，and two for high-school students．If your child __18__ has more homework than this，you may want to check other _19__ and then talk to the teacher about __20__ assignments.
1．A．very B．exact C．right D．usual
2．A .officials B．parents C．experts D．schools
3．A .Also B．Even C．Then D．However
4．A .tiredness B．confusion C．duty D．puzzle
5．A．there B．we C．they D．it
6．A．giving B．teaching C．helping D．doing
7．A．questions B．answers C．standards D．rules
8．A．off B．without C．beyond D．from
9．A．single B．piece C．page D．other
10．A．drop B．short C．cut D．lack
11．A．acquire B．earn C．gather D．reach
12．A．exercises B．shortcomings C．mistakes D．tests
13．A．perfect B．better C．unusual D．complete
14．A．forget B．refuse C．miss D．ignore
15．A．have B．prepare C．make D．perform
16．A．classes B．groups C．grades D．terms
17．A．about B．not C．much D．few
18．A．previously B．rarely C．merely D．consistently
19．A．children B．teachers C．parents D．schools
20．A．finishing B．lowering C．reducing D．declining
[单选题][A] set [B] exact [C] given [D] placed
[单选题]The officials in the ________ at London Airport were very polite.A.Custom B
[单选题]A． very B also C seldom D not
C)A sports competition-|||-B)A yearly concert. D)A pipe band contest-|||-2.A)Imp
B)She is a famed speaker.-|||-C)She is a famous scientist. D)She is a noted inve
[题目]-|||-1 1 1 1-|||-a b c d-|||-a^2 b^2 c^2 d^2 =(a-b)(a-c)(a -d)(b-c)(b-d)(c-|
[单选题]The nasty language of local officials makes them seem very ignorant and rud
[单选题]19．A．，veryB．muchC．very muchD．lot
b=1 (B) =2, b=-1 (C) =-2. b=1 (D) =-2, b=-1
(B) ((X-c))^2=E((X-mu ))^2.-|||-(C) ((X-c))^2lt E((X-mu ))^2. (D) ((X-c))^2geqsl