答案
听力1-5 BBCCA 6-10 CABCA 11-15. CCAAB 16-20 BBAAC
阅读21-23AAC 24-27ADCB 28-31 BDAD 32-35 ADBD 36-40 BCGDE
完型41-45 ACBDB 46-50 CDCAD 51-55 BCACB 56-60 DABBA
61. flew 62.a 63 . guidance 64. of 65.when
66. that 67. included 68. nor 69. is being investigated 70. infectious
改错：
71.删掉that 72. living改成live 73.six改成sixth 74.Surrounding改成Surrounded
75.has a population of 76.hugely改成huge 77.measured改成measure
78. consists后面in改成of 79.country改成countries 80.but改成and
参考范文：
Notice
Notice is hereby given to our international students that as prevention and control of the epidemic is the top priority, the Ministry of Education requires that the new term opening time should be postponed. The exact time hasn’t been decided yet. What can't be emphasized enough is that before we officially announce the opening time, not a single student is allowed to return to school privately.
However, the good news is that online education, cultural lessons and physical education included, will be provided according to the school curriculum. It will be much better to pick up what you are expected to learn at school than worry about the current situation too much. What’s more, psychological counselling/ guidance will be arranged. If you feel blue, you might as well ask for some help.
It is advisable to take it seriously. If there is any change, we will surely keep you informed ahead of time. Take care of yourselves and have a nice holiday.
Student Union
Notice
Notice is hereby given to our international students that(同位语从句，对notice进行解释说明)as(时间状语从句) prevention and control of the epidemic is the top priority(首要, the Ministry of Education requires that the new term opening time should be postponed（虚拟语气，应该推迟）. The exact time hasn’t been decided yet. What can't be emphasized enough(主语从句) is that(表语从句) before we officially announce the opening time, not a single student(表示强调) is allowed to return to school privately.
However, the good news is that(表语从句) online education, cultural lessons and physical education included, will be provided according to the school curriculum. It will be much better to pick up(学习) what you are expected to learn at school than worry about the current situation too much. What’s more, psychological counselling/ guidance(心理辅导) will be arranged. If you feel blue(心情不好、感到沮丧), you might as well ask(不妨做某事) for some help.
It is advisable to take it seriously. If there is any change, we will surely keep you informed ahead of time. Take care of yourselves and have a nice holiday.
Student Union
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