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一个四棱锥和一个三棱锥恰好可以拼接成一个三棱柱.这个四棱锥的底面为正方形,且底面边长与各侧棱长相等,这个三棱锥的底面边长与各侧棱长也都相等.设四棱锥、三棱锥、三棱柱的高分别为
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( )
A.
B.
C.
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完成句子(共10小题;每小题2分,满分20分)
1. When I opened the door, l found him sitting in the sofa, completely _____________________ reading a novel. (absorb)
当我打开门时,我发现他坐在沙发上,完全专心地看小说。
2.So _____________________________ that Maric was able to set up new branches elsewhere. (successful)
她的生意是如此成功,以至于玛里克可以在别的地方建立新的分公司。
3.It seems that we have to accept the result and make a good preparation to have another try.
earlier, I could have done something to avoid this accident. (inform)
看来我们必须接受这个结果并做好再次尝试的准备了。要是我早点得知的话,就可以做些什么来避免这场事故了。
4.It is the test system, rather than the teachers, for the students’ heavy study burden nowadays. (blame)
对于学生现在的学业重压,该受责备的是考试体系,而不是老师。
5. Have you ever had a case but nobody showed any concern? (fall)
你有没有过这种情况,你病倒了,却没有人关心?
6.With my money , I have to draw some from the bank in case I have none in hand. (run)
我的钱快用完了,所以我要从银行取点钱,以防手头太紧。
7.We are told from the director’s office that we know the result of the final examination. (long)
我们从主任办公室获悉,过不了多久,我们就可以知道期终考试的结果。
8.Some experts recommend signs and posters be put up in areas . (allow)
一些专家建议应在不允许抽烟的地方贴上标志和海报。
9. No one really knows exactly when the first people arrived in now. (call)
没有人知道确切在什么时候第一批移民者到达我们今天称之为美国的地方。
10.A reporter begins by contacting people ______________ and then prepares questions. (interview)
记者要先和被采访人联系,然后准备好要采访的问题。
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一个四棱锥和一个三棱锥恰好可以拼接成一个三棱柱.这个四棱锥的底面为正方形,且底面边长与各侧棱长相等,这个三棱锥的底面边长与各侧棱长也都相等.设四棱锥、三棱锥、三棱柱的高分别为
,
,
,则
( )
A.
B.
C.
D.![]()
在英语课堂上,你喜欢你的老师授课时只用英语,还是英语、汉语兼用?某英语杂志社就此话题邀请中学生发表看法。请你围绕“How do you prefer your English classes to be taught? In English, or in both English and Chinese?”这个问题,选择一种授课形式,写一篇英语短文。
授课形式一:只用英语
优点:有助于提高听说能力等
缺憾:不易听懂等
结论:…
授课形式二:英语、汉语兼用
优点:易于理解等
缺憾:英语氛围不浓等
结论:……
注意:词数100~120,开头已给出(不计词数)。 参考词汇:atmosphere氛围 I prefer my English classes to be taught in...
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