—I ________ so busily recently that I ________ no time to help you with your maths.
—That’s OK. I can manage it by myself.
A.have been working; have B.have worked; had
C.am working; will have D.had been working; had had
During Spring Festival, most of the cities in our country have ______ fireworks display because of safety and noise pollution.
A.defended B.cancelled C.burst D.broadened
The large passenger aircraft C919 AC 101, independently designed and developed by China, turned out to be a huge ________ success.
A.controversial B.contradictory
C.commercial D.compulsory
With the popularity of smart phones, people gradually lose the ______ for watching television, which makes TV a decoration of the house.
A.ambition B.appetite C.tolerance D.appeal
---I’ve heard a lot about you. You got promoted, right? ______
--- Many thanks.
A. Good for you B. You asked for it
C. There you are D. You’ve gone too far
假如你是李华。你们学校正在进行科技节的活动，你所在的学生会组织了一场介绍屠呦呦以及她的成就的讲座。请根据以下内容，用英文写一则通知，邀请感兴趣的学生来参加讲座。
1. 通知的目的;
2. 讲座的主题以及举办时间及地点;
3. 简要介绍屠呦呦及她的成就;
（1）1930年出身于浙江省宁波市；1951年考入北京大学医学部药学系；
（2）1955年毕业于北京大学医学部药学系；
（3）2015年10月，因发现青蒿素这一治疗疟疾的新药物而获诺贝尔医学奖。屠呦呦是第一位获得诺贝尔科学奖项的中国科学家。
4. 邀请感兴趣的同学来参加讲座
参考词汇：北京大学医学部药学系Peking University Health Science Center
青蒿素：artemisinin; 疟疾：malaria; 诺贝尔医学奖;Nobel Prize in Medicine
注意：
1．词数100左右,开头和结尾已为你写好；
2．可以适当增加细节，以使行文连贯；
3．文中不得透露个人姓名和学校名称。
Notice
Dear students ,
Attention, please.
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That’s all.
Thank you .
Student Union
