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When did the greatest numbers of immigrants come They came in the years .
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Where did the first immigrants come from They came from .
在窗体上画一个驱动器列表框、一个目录列表框和一个文件列表框，其名称分别为Drive1、Dir1和File1，为了使它们同步操作，必须触发______事件和______事件，在这两个事件中执行的语句分别为______和______。
Everyone knows hand washing is important. But a new study shows how washing yore" hands (67) , and at the right time, can have a big impact on your family’s risk of getting sick. Most studies on hand washing focus on (68) and food service workers. But this month’s American Journal of Infection Control focuses on washing hands at (69) as a way to stop infections from (70) Several studies show hands are the single most important (71) route for all types of infections. Even though most people know to wash their hands after using the toilet or handling a diaper (尿布), studies (72) many people are still ending up with germs on their hands. One study looked in homes of (73) recently vaccinated against polio (脊髓灰质炎). After vaccination, the virus is (74) to be shed in the baby’s feces (粪便). Researchers found the virus on 13 percent of bathroom, living room and kitchen surfaces. (75) the virus from the vaccine didn’t pose a health risk, feces-borne viruses can (76) through the home. Doorknobs and toilet flush handles are key (77) of germ transmission in the home. That’s why people should focus on cleaning such surfaces (78) and always wash their hands after touching them. In one study, a (79) touched a door handle contaminated with a virus. He then shook hands (80) other volunteers, and spread the virus to six people. The study authors note that the timing of hand washing is key. It’s (81) to wash hands after using the toilet, before eating or handling food. Other crucial times for hand washing are after (82) a diaper or cleaning up after a pet, or after touching garbage cans, dish rags and utensils that may have come (83) contact with raw food. While it may be hard to (84) that something as simple as regular hand washing can make a difference in your family’s health, consider what happened during the 2003 outbreak of SARS. The outbreak (85) extensive public and community health measures, including regular hand washing. Not only was the SARS outbreak contained, (86) other cases of illnesses dropped sharply.
Task 1 Directions: After reading the following passage, you will find 5 questions or unfinished statements, numbered 36 to 40. For each question or statement there are 4 choices marked A), B), C) and D). You should make the correct choice and mark the corresponding letter on the Answer Sheet with a single line through the center. Harvard University is the oldest institute of higher learning in the United States. Founded 16 years after the arrival of Pilgrims at Plymouth, the university has grown from 9 students with a single master to the present enrollment of more than 18 000 students, including undergraduates and students in 10 graduate and professional schools. Over 14 000 people work at Harvard, including more than 2 000 faculties. Harvard has produced six presidents of the United States and 34 Nobel winners. During its early years, Harvard offered a classic academic course based on the model of English universities, but consistent with the prevailing (流行的，盛行的；占优势的) Puritan philosophy. Although many of its early graduates became ministers in Puritan churches throughout New England, the university never formally belonged to a specific religious group. Under President Pusey, Harvard started what was then the largest fund-raising campaign in the history of American higher education. It was 82.5 million dollars program for the university. The program increased faculty salaries, broadened students aid. created new professorships, and expanded Harvard’s physical facilities. Nell L. Rudenstine took office as Harvard’s 26th president in 1991. As part of an overall effort to achieve greater coordination among the university’s schools and faculties, Rudenstine encouraged academic planning and identified some of Harvard’s main intellectual priorities. He also stressed the importance of the university’s excellence in undergraduate education, the significance of keeping Harvard’s door open to students from families of different economic backgrounds, the task of adapting the research university to an era of both rapid information growth and serious fund shortage. How many teachers did Harvard have at the very beginning
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