单选题16. He does morning exercises every day ______ make him strong.

单选题《复合题被拆开情况》 Today, there is no such thing as a "typical" college student. People of all ages are enrolled in college. Though the concept of college may be the same for all students, the stress and futu

单选题《复合题被拆开情况》 In 1991, when announced to be HIV positive, "Magic" Johnson became the face of a disease that the public still had a lot to learn about. The basketball star established the Magic Johnson Fo

单选题《复合题被拆开情况》 As any middle-class parent knows, unpaid work experience can give youngsters a valuable introduction to a secure job. The government has recognized it too, abandoning rules in 2011 that had

单选题《复合题被拆开情况》 Regret is as common an emotion as love or fear, and it can be nearly as powerful. So, in a new paper, two researchers set about trying to find out what the typical American regrets most. In

单选题8. He spoke English so well that I took it for ______ that he was an American.

单选题《复合题被拆开情况》 Half of the world’s coral reefs珊瑚礁 have died in the last 30 years. Now scientists are racing to ensure that the rest survive. Even if global warming were to stop right now, scientists predi

单选题Chokwe Selassie is on a mission to help drivers avoid potholes (路面坑洼). The eighth-grader was inspired to kick off his mission on a recent morning, when his mother was driving him to school. Their car was damaged as it went over a huge pothole in the middle of the street in their hometown of Jackson, Mississippi. I decided I was going to do something about the pothole problem in my city. Chokwe says. His solution: an app (手机应用) that warns drivers when there is a pothole ahead. Chokwe developed the app with his friends Rodriguez Ratliff and Emmanuel Brooks. When the app detects a pothole, it is highlighted (突出显示) in red, Chokwe says. And if you get close to the pothole, your phone will warn you. Drivers can also use the app to report any potholes they encounter, and to look for other routes they can take to avoid roads that have them. The app relies on current available information about the streets of Jackson. It works by using the citys 311 call system, so it uses information already stored in a database, Chokwe .says. Through the call system, citizens dial 3-1-1 to report non-emergency problemswhich include potholes. Chokwe and his friends determined that focusing on the 10 busiest streets in Jackson would give them a large enough sample size to test the prototype (原型). Although the app isnt yet available for sale, Chokwe is already looking for ways to improve it. The prototype remains limited to 10 streets in Jackson, but he hopes to add more, so that it includes every street in the city. And then he wants to go even farther. I want to keep working on the app until its nationwide, Chokwe says. 1. Which of the following is the best title for the passage? ______

单选题The car________when the light turned red.

单选题《复合题被拆开情况》Jenny: Hey, Rosy, I heard that you are going to The Mall today.Rosy:【D1】________Jenny: Yes. Please buy me the bag that I showed you the other day.Rosy:【D2】________Jenny: Thanks a lot, Rosy.

单选题Government reports, examination compositions, legal documents and most business letters are the main situations________formal language is used.

单选题China is rich in natural resources, but they are not evenly________.

单选题5. I was trying to get into the ______ bus when I heard a voice from behind.

单选题4. When and where the new hospital will be built ______ a mystery.

单选题A mirror________a picture of you when you look in it.

单选题It suddenly________me how we could improve the situation.

单选题 That night the band played many old songs

单选题The question is________to send troops to take part in the war.

单选题《复合题被拆开情况》Tracey: Don’t you have air-conditioning in your apartment? It’s sweltering here!Alice: Well, there’s air-conditioning. Did you see that window air-conditioner there?【D5】________Tracey: I gue

单选题If students can’t focus on the spoken word of the teacher, they not only lose________to learn; they actually lose ability to learn.