您所在的当前位置：高中英语试题 >

动词及动词短语辨析

> A driver should __ the road when . A concentrate on; drive B. concentrate in; driving C. concentrate to; drove D. concentrate on; driving

问题：

发布时间：2024-09-11

A driver should           __ the road when            .
A concentrate on; drive           B. concentrate in; driving
C. concentrate to; drove           D. concentrate on; driving

参考答案：

提问用户：Gt***e9b

可能感兴趣的题目：

1 要实时监测火灾的扩散趋势及影响范围，且制作出电子地图供公众查阅以尽快了火情，主要采用的技术是 ①GIS　 ②GPS 　③RS 　④IT A．①② B．①③ C．②③ D．③④
2 Was it in the factory _____ you worked five years ago ____ you met your wife for the first time? A．that; that B．where; that C．which; where D．which; that
3 将氯水滴入紫色石蕊试液、硝酸银溶液，将依次观察到紫色石蕊试液先变红后退色、有白色沉淀产生等现象。这些现象与氯水所含的下列哪种微粒无直接关系 A．HClO B．H2O C．Cl— D．H+
4 被称为“坐在矿车上的国家”的是 A.澳大利亚 B.美国 C.巴西 D.俄罗斯
5 （10分）如图所示，一平直的传送带以速度v=2m/s匀速运动，传送带把A处的工件运送到B处，A、B相距L=10m．从A处把工件无初速地放到传送带上，经过时间t=6s能传送到B处．求：（1）工件在传送带上做匀加速运动的时间（2）欲使工件用最短时间由A至B，传送带的速度至少为多少？（3）求出工件从A至B的时间t随皮带运动速度v的变化的函数关系式，并尽可能准确地画出t--v图像，要标明关键坐标值。
6 阅读理解。 One evening I went out and left my 17-year-old son and his girlfriend in charge of his 8-year-old brother and 4-year-old sister. I left with complete confidence that the older children would do a wonderful job of babysitting the younger children. Later, I discovered that I was completely wrong. I had decided to return home earlier than planned so that my son and his girlfriend could go out. I called home with this happy news．But instead of hearing his cheerful, grateful voice on the other end of the line, allI heard was the sound of a telephone ringing. It was, I should point out, after 10 p.m., when the two younger children should have been in bed, and when the two older children should have been answering the phone. "I"ll give him a lesson, " I said. I decided they must be outside. Why they might be outside at 10:30 on a winter night I had no idea, but it was the only explanation I could come up with. Finally, in desperation (绝望), I called his girlfriend"s house. His girlfriend answered. "Yes," she said brightly, "He"s right here." He came on the phone．I was not my usual calm, patient．After all, one of the rules of survival for modern parents is that you can"t trust modern teenagers. "Where are the children?" I said. He said they were with him. They had done nothing wrong. My son had taken the younger children over to his girlfriend"s house just for ice cream and cake. Well, it turns out that I shouldn"t have believed it. It was only part of the truth. The following Saturday evening we were at my parents" home, celebrating my birthday. My oldest son gave me the children"s gifts-a series of lovely color photographs of my children, dressed in their best clothes, and wearing their most wonderful expressions. They are pictures to treasure a lifetime, all taken by the father of my son"s girlfriend. 1. The author went out and left her eldest son in charge of the younger children because _____. A. she knew that his girlfriend was a good baby-sitter B. she believed he could take good care of the younger ones with the help of his girlfriend C. the older children have always loved the younger ones D. she could not find a baby-sitter on that winter night 2. Shortly after the author left home one evening, she discovered that _____. A. her son had brought his girlfriend home B. her son had left home with his girlfriend C. she shouldn"t have completely trusted her son D. she should have taken the children along with her 3. " It was only part of the truth." implies that the children not only enjoyed ice-cream but also _____. A. had their pictures taken B. received some gifts C. had a birthday party D. showed off their best clothes
7 阅读如图所示的程序框图，运行相应的程序．若输入m的值为2，则输出的结果i=______．
8 下列有关实验的现象描述正确的是（） A．氢气在氯气中燃烧，火焰呈苍白色，瓶口出现大量白雾。 B．磷在氯气中燃烧，发出明亮的蓝紫色火焰，产生大量白色烟雾。 C．铜在氯气中燃烧，产生白烟，加水溶解后可得蓝绿色溶液。 D．用洁净的铂丝沾取碳酸钾粉末在酒精灯火焰上灼烧，可观察到明亮的紫色火焰。
9 强酸性溶液中能大量共存的且溶液无色透明的离子组是（　　） A．K+、Na+、CO32-、Cl- B．Na+、NH4+、Cl-、SO42- C．K+、Ca2+、HCO3-、Cl- D．K+、Na+、MnO4-、SO42-
10 函数y=cos 2ωx-sin 2ωx（ω＞0）的最小正周期是π，则函数f（x）=2sin（ωx+ π 4 ）的一个单调递增区间是（　　） A．[- π 2 ， π 2 ] B．[- 5π 4 ， 9π 4 ] C．[- π 4 ， 3π 4 ] D．[ π 4 ， 5π 4 ]