(
课件网) Unit 1 Words and Expressions His injuries are severe. 他的伤很重。 severe weather conditions 恶劣的天气情况 a severe winter 严冬 a severe punishment 重罚 a severe expression 严厉的表情 severely adv. severely disabled 严重残疾的 frustrate v.使懊丧,使懊恼,使沮丧;挫败,阻止 frustrated/frustrating adj. feel frustrated/get frustrated a frustrated artist be frustrated with/at… frustration n.懊恼，沮丧 巩固练习 severe/frustrate 1.What _____me most was the _____ news about the football match, whose result made everyone here _____. (frustrate) 2.He felt frustrated _____ the lack of progress. 3.Shortage of professional staff are _____. (在一些地方十分严峻） 4.她是一个很严厉的女人，脸上很少出现笑容。 _____. frustrated frustrating frustrated at/with very severe in some places She was a severe woman who seldom smiled. once and for all 最终地；彻底地 1. The problem can be solved once and for all, if you do that. 如果你那样做，问题就能彻底得到解决。 2. All at once, a rabbit came out of a hole. 突然，一只兔子从一个洞中跑了出来。 at once 立刻，马上 once and again 一而再，再三 all at once 突然；同时 完成句子 ①The teacher has warned the student ． 那位老师最终警告了那个学生。 ②Of course, such an overweening purpose did not develop ． 当然，如此自负的目的并不是突然闪现的。 ③Finally I found out the right method after experimenting ． 经过反复试验，我终于找到了正确的方法。 once and for all all at once once and again infection n. 感染；传染 1. Surgeons wear masks to prevent the spread of infection. 外科医生戴着口罩以防止传染(病)的传播。 2. Measles is a highly infectious disease that causes deaths, but is fully preventable by vaccination. 麻疹是一种传染性很强的疾病，会造成死亡，但通过接种疫苗是完全可以预防的。 (1) prevent infection 防止感染 skin infection 皮肤感染 (2) infect vt. 使感染；传染 be infected with/by 被感染 (3) infected adj. 感染的 (4) infectious adj. 传染性的 单句语法填空/完成句子 ① We shouldn’t look down upon people (infect) with HIV. ② Exactly which bacteria cause the (infect) is still unknown. ③ Every year, there are people unlucky enough to be infected the flu. ④ This new (infect) disease has caused many deaths all over the world. ⑤ People should take protective measures before going out to . 人们在出门前应该做好防护措施以防止感染。 infected infection with infectious prevent infection link n. 联系；纽带 vt.把……连接起来；相关联 1. A chain is no stronger than its weakest link. (谚语)一环薄弱，全链易断。 2. The new bridge will link the island to the mainland. 新的桥梁将把该岛与大陆连接在一起。 (1) a link between...(and...) ……(和……)之间的连接(联系) (2) link A to/with B 将A与B联系/连接起来 link up (with sb./sth.) (与某人/某物)连接，结合 be linked to/with... 与……有联系/有关 单句语法填空/完成句子 ① Police suspected there may be a link the two murders. ② The video cameras (link) to a powerful computer. ③ The Channel Tunnel links Britain the rest of Europe. ④ The space shuttle ... ...
