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1.
王文涛 《中学生英语读写(高中版)》2002,(4)
Which is nearer? An express train leaves London for Manchester(曼彻斯特)at 9:15 inthe morning. It travels at all average of 165 K.P.H. A slow train leavesManchester for London at 10:30 the same morning.It travels at an average 相似文献
2.
翰蔚 《初中生世界(初三物理版)》2007,(7)
1.她的独生女儿在山东大学学法律。误:Her only one daughter studies law at Shandong University.正:Her only daughter studies law at Shandong University.析:only作形容词,置于单数名词之前,意为“惟一的、仅有的”,one是多余 相似文献
3.
Once,a gentleman was traveling in a train.He felt (1) and got down at a station in search of water.As soon as he reached the water tap[水龙头]the train started.He ran back,but(2) the train.
He asked about the next train and knew that the next train was on the next day.So he decided to find a place to(3)the night.It was getting darker and he could not find a room.He was a little(4). 相似文献
4.
一些中学英语语法书在阐述“What…”和“How…”感叹句时,常给出这样的一些结构让学生去记:1.What a(an) 单数名词。如:What afoo!lWhat a(an) 形容词 单数名词。如,What afoolishma!nWhat 形容词 复数名词。如:What foolishmenl2.How 形容词。如:Look at the littldeog!How l 相似文献
5.
John Scouler.58,of Lon-don,survived after he had beenhit by a train travelling at morethan 160 kmh at 1:45 p.m.on31st August 2002.Mr,Scoulerwas then walking his dog onthe East Coast main line be-tween Newcastle-upon-Tyneand Edinburgh when he wasstruck.He suffered only mi-nor injuries. 相似文献
6.
王会慈 《中学英语之友(高一版)》2007,(Z1)
Ⅰ.单项选择。 1. ——Did your sister pass the exam? ——She failed and is in low spirits. ——I8m sorry for her. ——____. A. Thank you B. You8re welcome C. I would think so D. Never mind 2. ——Can you tell me the time for the train for Beijing tomorrow morning? ——Well, the train ____ here at 7:10 a.m. and ____ at Beijing at 4:00 p.m. A. leaves; arrives B. will leave; arrive C. is leaving; arriving D. will leave; will arrive 3. ____ I admit that the problems are difficult, I don8t ag… 相似文献
7.
John is travelling by train. He is very hungry. The train stops at a small station. He wants to buy one cake to eat very much. But it’s raining hard. He wants someone to help him. A little boy is coming over to him. John asks him to buy cakes and gives him one yuan and says: "Go and buy two cakes 相似文献
8.
The story was set in the winter of 2005. I intended to pay a visit to my uncle by train. Unfortunately, as the train amved at the small town where my uncle lived, it was deep into night2 and what impressed me most was the chilling and penetrating wind. 相似文献
9.
Mr Green has a holiday,so he says,"I'm going to the mountainsby train."He puts on his best clothes,takes a small bag,goes to thestation and gets into the train.He has a beautiful hat,and he often putshis head out of the window during the trip and looks at the mountains. 相似文献
10.
A high-speed train-track coupling dynamic model is used to investigate the dynamic behavior of a high-speed train operating on a curved track with failed fasteners. The model considers a high-speed train consisting of eight vehicles coupled with a ballasted track. The vehicle is modeled as a multi-body system, and the rail is modeled with a Timoshenko beam resting on the discrete sleepers. The vehicle model considers the effect of the end connections of the neighboring vehicles on the dynamic behavior. The track model takes into account the lateral, vertical, and torsional deformations of the rails and the effect of the discrete sleeper support on the coupling dynamics of the vehicles and the track. The sleepers are assumed to move backward at a con- stant speed to simulate the vehicle running along the track at the same speed. The train model couples with the track model by using a Hertzian contact model for the wheel/rail normal force calculation, and the nonlinear creep theory by Shen et al. （1984） is used for wheel/rail tangent force calculation. In the analysis, a curved track of 7000-m radius with failed fasteners is selected, and the effects of train operational speed and the number of failed fasteners on the dynamic behaviors of the train and the track are investigated in detail. Furthermore, the wheel/rail forces and derailment coefficient and the wheelset loading reduction are analyzed when the high-speed train passes over the curved track with the different number of continuously failed fasteners at different operational speeds. Through the detailed numerical analysis, it is found that the high-speed train can operate normally on the curved track of 7000-m radius at the speeds of 200 km/h to 350 km/h. 相似文献