The river ________ at least 50 meters in width, but the ten-year-old boy can swim across it within minutes.
A.is measured B.measures
C.is measuring D.is being measured
With more forests being destroyed, huge quantities of good earth ________ each year.
A.is washing away B.is being washed away
C.are washing away D.are being washed away
Everything _____ doing is worthy of _____ well.
A. worthy; being done B. worth; being done C. worthy; doing D. worth; doing
阅读下面材料, 根据其内容和所给段落开头语续写两段, 使之构成一篇完整的短文。续写的词数应为150左右。
“What do you think about my audition(试奏) yesterday？My trill(颤音) should have been better, don’t you think？” Abbie asked Mel and closed the lid of her violin case before school.
“It’s no big deal, Abbie, ” Mel said as they walked out the door. Mel didn’t have time to worry about her little sister’s mood. It turned out to be a busy day. She had a test in science class. She hit two home runs in softball. After school, she and her friends talked about their summer plans.
She forgot about the audition results until Abbie dragged her to the music room. Mel thought she’d probably be in the first violins.
Mel and Abbie found the list of names on the board. Abbie. Concertmaster. Abbie screamed, “I can’t believe it!” “I can’t wait to tell Mum and Dad!” Abbie rushed toward home. Mel kept reading. Mel. Second violins. What？There had to be some mistake. She’d figure out tomorrow.
When Mel got home, Abbie was playing her audition piece there. Music poured from Abbie’s bow like water from a teapot—pure and perfect. And the trill sounded like a bird singing. Abbie was good—really good—but that wasn’t the point. “Mr Benson must have made a mistake, ” Mel thought.
The next morning, Mel slipped into the music room. Gathering her courage, Mel said, “Mr Benson, I want to talk to you about the orchestra(管弦乐队) seats. ”
“Yes—you must be proud of your sister, ” Mr Benson smiled. “Abbie is a rare student. If she continues to practice hard and grow as a musician, she could become a professional. Then we’ll look back on our little orchestra and think about how lucky we are. ”
Paragraph 1：
Mel froze as there wasn’t any mixup.
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Paragraph 2：
After school, Mel found Abbie on a bench outside, playing the violin.
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假定你是李华, 你的美国笔友Tom得知你校上月举办了首届校园科技节活动, 发邮件向你询问相关情况。请你回复邮件。内容包括：
1. 活动的目的；
2. 活动的形式, 如智能校园创客(maker)大赛, 科创成果展等；
3. 你的感受。
注意：1. 词数80左右, 开头已给出, 不计入总词数；
2. 可以适当增加细节, 以使行文连贯。
Dear Tom,
I am excited to tell you that the first Science and Technology Festival was held in our school last month,
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阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。
China' s first artificial intelligence (Al) textbook for high school students 1.( bring) out last week, following a plan by central government 2.( include) Al courses in primary and sec-ondary school.
The nine - chapter textbook, 3.( name ) " Fundamentals of Artificial Intelligence" , was written by outstanding 4.( scholar) from well - known schools nationwide, under the joint ef forts by the research center for MOOC at East China Normal University and Al startup SenseTime. It includes the history of Al and how the technology can be applied in areas such as facial recognition, auto driving and public security.
"The textbook focuses not only on basics of Al, but on 5.( practice) use of Al in daily life,” said Chen Yukun, a professor at East China Normal University, 6. is also a contributor to the book.
Up till now, about 40 high schools across the country 7.(undertake) the task of being the first group of Al high education pilot program 8. introducing the textbook in the curriculum. "The Al sector is facing a talent shortage 9.( global). The publication of the book is 10.breakthrough as it takes Al technology out of the ' Ivory tower' and makes it part of high school learning," said Lin Dahua, a professor at the Chinese University of Hong Kong.
