专题限时训练(十) [介词](限时：20 分钟)一、单句演习：阅读下列句子， 按照句子构造的语法性以及句意，用合适的介词填空。1 ． Fred entered without knocking and, very out of breath, sank ________ a chair.2．If you really have to leave during the meeting, you’d better leave ________ the back door.3．A great man shows his greatness ________ the way he treats the others.4．You have no idea how she finished the relay race ________ her foot wounded so much.5．I like Mr.Miner’s speech; it was clear and ________ the point.6 ． Let’s learn to use the problem we are facing ________ a steppingstone to future success.7．Modern equipment and no smoking are two of the things I like ________ working here.8．I began to feel ________ home in the new school when I saw some familiar faces.9．This problem was ________ the abilities of most of the class. None of them could work it out.10 ． Everything was perfect for the picnic except ________ the weather.11 ． This is a junior school.You should go to a senior school ________ girls of your age.12．________ the silence of the pauses, we could hear each other’s breathing and could almost hear our own heartbeats.13 ． Scientists are convinced ________ the positive effect of laughter ________ physical and mental health.14．Experts have been warning ________ some time of the health risks caused by passive smoking.15．The manager suggested an earlier date ________ the meeting.16．Some people choose jobs for other reasons ________ money these days.17．Some students often listen to music ________ classes to refresh themselves.18．The openair celebration has been put off because ________ the bad weather.19 ． Sorry, Madam.You’d better come tomorrow because it’s ________ the visiting hours.2...
