Unit 1 1. Their introduction to materdramatics was impressive. onlineeducationprovidesthosewhoworkfulltime with oppo rtunitiestoreceivefurtheeducationintheirsparetime。 When he first arrived at the university, he didn't know whether he was what the professor said. Hidden behind his smile. Some students are afraid to talk to strangers, while others are afraid to talk too much. Unit2 1。 They don't sell French fries here. If you want to eat, you can go to McDonald's. 2. HepickedDupawalnut and TriedTocrackiwithammer, not butinsteadhecrushedit. When gold melts, they will become gold bars. The headmaster broke the window of the classroom. Obviously, the new economic policy begins with positive economic effects. Unit3 1。 It is likely that teachers will not consider students who will not think for themselves. When he was in high school, almost no one had done scientific experiments, let alone been trained in this field. 3 . envisitresultoflazinesandignorance。 Some college students choose activities according to their majors instead of volunteering. 5.thebestapprochistobreakthestudentsupintoseveralgroupssothattheycanfocusthierdiscussionspeci fic problems。 Unit4 1。 It is estimated that there are currently about 400 million mobile phone users at risk. The less people's daily needs, the more arrangements they make for leisure activities. 3. I especially like to travel in different places and learn about lifestyles, customs and habits in different cultures. In most cases, cultural conflicts will make people wary of different cultures. You can reserve the right to make your own choice, but don't be impulsive. Unit 51.SuddenlyThemaninthRedshirtturnedoff Hisfelssmile and ShowdhistureColors. 2. A husband signs a contract with his wife if he claims to be doing housework. He didn't realize that his infatuation with her beauty had blinded his eyes. Hearing that the police finally found her children in the Woods, they shed tears with joy. Unit6 1. Make sure that the stampisfirmlyatachededletter is before Youdropintothemailbox.2. Many young people like playing video games, which will damage their physical and mental health. She looked at the newspaper and looked for nothing happened in the world. Congress rejected the latest economic proposal.