U4 Book21.(标题) virtual: adj.1) created and existing only in a computer*I can visit a virtual store and put what I want in my basket at the click of a mouse button.*Some people spend too much time escaping from reality into the virtual world conjured up on their computer screens.2) almost what is stated; in fact though not in name*The officials hear this kind of talk in virtual silence.*国王处处都受王后的影响，以至于王后成了国家实际上的统治者。
(=The king was so much under the influence of his wife that she was the virtual ruler of the country.)2.(L. 2) interpret: v.1) understand (sth. said, ordered, or done)*The gift is generally interpreted as a bribe.*She made a gesture, which he chose to interpret as an invitation.2) give or provide the meaning of, explain诗有助于阐述人生的意义。
(=Poetry helps to interpret life.)*The evidence is difficult to interpret.3) translate what is said in one language into another(=No one in the tour group spoke Spanish so we had to ask the guide to interpret.)3.(L. 5) stretch: v. (cause to) become longer, wider, etc. without breaking*My wool coat stretched when I washed it.*The child stretched the rubber band to its full extent.*你已经使我忍无可忍了。
(=You are stretching my patience to limit.)4.(L. 8) submit: vt.1) give (sth.) to sb. so that it may be formally considered*I am going to submit an application for that job in Microsoft.*Peter submitted his application to the local government.2) yield (oneself); agree to obey*Should a wife submit herself to her husband?*We should submit ourselves to discipline.Collocation:submit oneself to 甘受, 服从submit to 服从于；把…提交给…submit willingly 心悦诚服5.(L. 9) edit: vt. revise or correct*Scholars often edit Shakespeare’s plays.(=John didn’t finish editing the annual report until the end of last month.)6.(L. 9) communicate:1. vi. contact sb. in any way, eap. by speaking to them, writing to them or calling them (followedby with)*We can communicate with people in most parts of the world by telephone.*年轻人有时抱怨无法与父母沟通思想。
(=Young people sometimes complain of not being able to communicate with their parents.)2. vt. make (news, opinions, feelings, etc.) known*The radio stations communicate the storm warnings to the islanders.*She communicated her ideas to her subordinates.7.(L. 13) at times: sometimes*At times, I feel that I want to leave this job.8.(L. 18) take in:1) receive, admit2) include3) make (clothes) narrower4) understand5) deceive6) see at a glance; see at once(Directions:) Match the above definitions with the sentences below.1. The dress was too big, so I took it in. (=3)2. I didn’t take in what you were saying. (=4)3. She took in every details of the other woman’s clothes. (=6)4. Do you mean we should get rid of the stale and take in the fresh? (=1)5. Don’t be taken in by her promises (=5)6. This is the total cost of the trip, taking in everything. (=2)Collocation:take after 仿效，跟随；相象，在相貌、脾气或性格上相似take apart 拆开take back 收回（所说的或所写的事）take down 拿下，放下take for 把…视作；误认为take off 脱掉（衣服等）；起飞take on 从事；开始对付：take out 取出；弄走take over 接管take up 举起；再次开始9.(L. 18) spit: vt. send (liquid, food, etc.) out from the mouth (used in the pattern: spit sth.(out)(at/on/onto sb./sth.))*He’s very ill and spitting (up) blood.*The baby spat its food out on the table.*他气呼呼地作了答复。
(=He angrily spat out her answer.)10.(L. 19) symptom: n.1) sign of the existence of sth. bad*The Government must not ignore these symptoms of discontent among their own supporters.(=High interest rates are a symptom of a weak economy.)2) change in the body that indicates an illness*A cold, fever and headache are the usual symptoms of flu.*持续地咳嗽可能是非典型性肺炎的症状。
(=A persistent cough may be a symptom of atypical pneumonia.)11.(L. 21) nightmare: n. a terrible dream*Driving through that snowstorm was a nightmare.*I had a nightmare about falling off the skyscraper.12.(L. 26) conversely: adv. in a way that is opposite to sth.*$1 will buy 100 yen worth of Japanese goods. Conversely, 100 yen will buy $1 worth ofAmerican goods.*You can add the fluid to the powder or, conversely, the powder to the fluid.13.(L. 33) but then: yet at the same time*The failure of China’s soccer team l ooks inevitable. But then, anything can happen in football.*这个马戏团并不出色，不过观众的要求也并不高。
(=The circus was not a very good one, but then, the audience was not demanding.)14.(L. 33) jar: v. have a harsh or an unpleasant effect (used in the pattern: jar sth., jar on sb./sth.)*The fall jarred every bone in my body.(=The way he laughs jars on me.)15.(L. 34) suck in: (usu. passive) involve (sb.) in an activity, an argument, etc., usu. against their will*Some teenagers don’t want to get involved with gangs, but they find themselves getting sucked in.*我不想卷入有关学校改革的辩论。