It's impolite to keep someone________ for a long time.
A.wait B.to wait C.waiting D.have waited
—Jack must be in his office, I think.
—No, he be in the office. He flew to Canada this morning.
A.needn't B.shouldn't C.can't D.mustn't
—________ can you have these trousers ready? —In 24 hours.
A.How soon B.How long C.How often D.How many
Lucy performed well and her father was surprised at ________ daughter's secret talent.
A.your B.his C.her D.my
阅读下面短文, 按照句子结构的语法性和上下文连贯的要求, 在空格处填入一个适当的词或使用括号中词语的正确形式填空。
It was Monday in October. There were many people on the bus and passengers were standing in the aisle (过道). A young woman 1. (carry) a baby was very grateful when an old man 2. her his seat. The baby was 3. (fast) asleep and she could now rest him on her lap. She 4. (thank) the old man and was just going to sit down when a rude man took the empty 5. . Everyone was embarrassed and the young mother was 6.surprised that she couldn’t say anything. All the passengers were very angry with the man, but he 7. no attention to them. Later, the rude man wanted to get off the bus and tried to push past the passengers. They all stood 8. (close) together and wouldn’t let him move. The rude man shouted, “I’ll be 9. for work!” But the other passengers stood closer as if they didn’t hear it. The man had no choice and was made 10. (stay) on the bus till the bus reached its terminus .
① More and more teachers say the digital age has had a good and a not-so-good influence on the American teenagers. More than 2,000 high school teachers took an online survey. 75 percent of the teachers said the Internet and digital search tools have had a “mostly good” use for their students' research habits and skills. But 87 percent agreed that these technologies “make the students not have enough attention.” And 64 percent said the technologies “do little to help them in courses.”
② The Pew Internet Project did the survey with the National Writing Project. Judy Buchanan is a voice director of the National Writing Project. Ms. Buchanan says digital research tools are helping students learn more, and learn faster. Teachers really like these tools, because they are ways to make some of learning exciting. Young people enjoy using these tools. And the goal is to help them become creative students of meaningful work, and not just that kind of copyist.
③ But one problem the survey found is that many students lack digital literacy. In other words, they trust too much of the information. Judy, Buchanan says these students, have not developed the skills they need to tell whether the online information is good or bad.
④ Another problem the survey found is something that might not seem like a problem at all, being-able to quickly find information online. Teachers say the ability of their students to work hard to find answers is becoming weaker. They say students depend too much on search engines (引擎) and do not make enough use of printed books or research, librarians.
⑤ Besides, many teachers are also worried about the problem that the Internet makes it easy for students to copy work done by others, instead of using their own abilities.
1.What does the writer want to tell us by writing this passage?
A.Digital search tools are playing a key role.
B.Students don't know how to use the digital search tools.
C.Many teachers are worried about the students' abilities.
D.Digital tools bring about benefits and problems.
2.How is the passage organized?
A.
B.
C.
D.
3.The underline sentence in Paragraph 3 probably means _______________.
A.many students can’t understand how to use the digital knowledge well.
B.many students don’t have the right digital tools.
C.many students can’t find the information from the Internet.
D.many students don’t trust their university teachers.
4.What is the next paragraph probably about?
A.Show an online survey from students. B.Show another benefit of digital tools.
C.Show the solutions to the problems. D.Show the names of digital tools.
