单选题You are so clear about it; somebody ______ you.

单选题In the United States, teaching is very important. If teachers do not teach well, students complain. If many students do not understand, people think that the teacher does not do a good job. The teacher has big responsibility to make sure students understand. In a sense, students are consumers and the teacher is offering services. Students have the right to evaluate their teachers, and they usually do so at the end of each course. That evaluation includes lots of aspects of teaching, such as explanation, preparation, using good examples, answering questions, and organization of classes. Students are supposed to read required textbooks and recommended books before classes. Without reading them, they will find it very difficult to understand the class. Basic courses on doing research and writing papers are taught at the beginning of the program. They teach things very concretely (具体地) and clearly. Students are expected to apply what they have learned to their studies. Classes are usually divided into lectures and seminars. There are some lecture classes, where the teacher just gives a lecture, and students ask questions at the end. Most graduate level classes are lectures and discussions. Participating in discussion is very important. Higher level classes involve very little lecturing. They emphasize discussion and presentation by the students.

单选题Unexpectedly, he ______at her birthday party. All of us thought he wouldn't come. A. turned up B. turned down C. turned in D. turned out

单选题I don't think he is a man ______ .A) whom you can believeB) that you can believeC) whom you can believe inD) what you can believe in

单选题A new technique having been worked out, the yields as a whole increased by 20 percent. A. 一项新技术已经被研究出来，总产量在整体上已经提高了20%。 B. 一项新技术已经被研究出来，总产量提高了20%。 C. 由于研究出了一种新技术，总产量提高了20%。 D. 由于研究出了一种新技术，总产量在整体上已经提高了20%。

单选题As silk blouses are in great demand, we do not usually grant any discount unless you place an order for more than 1,000 pieces.

单选题Mary spoke to her teacher with understandable pride in the past.

单选题I've lived in Nanchang for several years and I'm now accustomed to ______ hot food. A. eat B. ate C. eating D. eats

单选题On no account be removed from the library.A) reference books mayB) may reference booksC) can't reference booksD) reference books can

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单选题Diligence is no less important than opportunity for success.

单选题During the investigation he ______ my attention to a telephone number written on an old but unopened envelope. A. drew B. fixed C. paid D. laid

单选题No one can use cell phones in any areas at the hospital where equipment might be affected by the interference from cell phones.

单选题______ here for 3 years, she has been quite experienced in dealing with those affairs.A) Having workedB) Having been workedC) Have workedD) Worked

单选题The machine ______, the next step was how to operate it.

单选题We all see{{U}} {{/U}}her and know what kind of woman she is.

单选题An evergreen tree, often a pine or fir(冷杉), decorated with lights and ornaments as a part of Christmas festivities. The use of evergreen trees, wreaths(花冠), and garlands(花环) to symbolize eternal life was a custom of the ancient Egyptians, Chinese, and Hebrews. The worship was common among the pagan Europeans and survived their conversions to Christianity in the Scandinavian custom of decorating the house and barn with evergreens at the New Year to drive away the devil and of setting up a tree for the birds during Christmastime; it survived further in the custom, also observed in Germany, of placing a Christmas tree at an entrance or inside the house during the midwinter holidays. The modern Christmas tree, though, originated in western Germany. The main prop of a popular medieval play about Adam and Eve was a "paradise tree", a fir tree hung with apples that represented the Garden of Eden. The Germans set up a paradise tree in their homes on December 24, the religious feast day of Adam and Eve. They hung wafers on it; in a later tradition the wafers were replaced by cookies of various shapes. Candles, symbolic of Christ, were often added. In the same room was the "Christmas pyramid", a triangular construction of wood that had shelves to hold Christmas figurines and was decorated with evergreens, candles, and a star . By the 16th century the Christmas pyramid and the paradise tree had merged, becoming the Christmas tree.

单选题We won't be able to leave the office until the rain______ .

单选题We shall appreciate it if you will arrange shipment by a direct steamer to London.

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