2. 1 : forecast ( vt./n.) 1)vt. 后跟名词、代词、宾语从句 （预测、预报） eg The teacher asked us to forecast the future. The weatherman forecast that it would rain the next day. 2)n. 预测、预报 a weather forecast  make forecasts about sth 对 … 进行预报 / 预测 2: major adj./v. 1)Be careful,there is a major road ahead.( 主要的； 重要的） 2)v. 主修科目，常与 in 连用 She majored in maths at university

3.  3.indicate vt. point to. show sth. 指出, 指示, 表明.  1) 当 “ 指出, 指示 ” 时. 后面经常跟名词. The arrow indicates the way to the park.  2) 作 “ 表明, 象征 ” 讲. 后面可以加名词或宾语从句. 即 indicate + n/ (that)…  Snow indicates the coming of winter.  A red sky at night indicates that the following day will be fine.  The sign indicates that smoking is not allowed here.  He point out the way to the nearest hospital for me.  He never show his feelings

4. 4: ensure : 保证, 担保, 保护 1): ensure “ 保证, 确保 ”, 常用于 “ensure + n.” eg: The book ensured his success. 2): ensure + sb. + sth. “ 保证某人 ( 得到）某物 ” eg: A good sleep will ensure you quicker recovery. 3): ensure + that- “ 保证 … 事 ” eg: Please ensure that all the lights are switched off at night. 4 ） ensure sb. against sth. 保护某人免受 We should ensure ourselves against all possible risks.

5. 5 keep/stay /get in touch with I still __________ most of my high school students. I will ___________ you as soon as I arrived. be out of /lose touch with sb. 与某人失去联系 in/within touch 够得着 out of touch 够不着 短语拓展： keep back 留下；阻止 keep in mind 记住 keep fit 保持健康 keep one’s balance keep on 坚持；继续前进 keep up with 赶上；不落后 ; 跟上 catch up with keep/stay in touch with get in touch with

6.  6.purchase  vt to buy sth. n. things bought.  1) 作动词时, 表示 “ 购买, 买东西 ”. 比 buy 正式, 后 面常加名词作宾语. eg. He purchased the house for two hundred thousand dollars. 2) 作名词时表示 “ 购买的东西 ” 时，常用复数． eg. I had a good/bad purchase. I have some purchases to make in twon.

7. 7: remain : 1): “ 剩下, 残留 ”, (vi.) 通常不用于进行时态.  eg: There remain only a few ruins that remind us of the old days. 现在只留下一些令我们怀念往日时光的遗迹 Few people remained in the meeting. If you take 4from 9, 5 remains. 2): “ 逗留, 停留 ”, 比 stay 更正式. Eg: How long will you remain here? Please remain here till I return.

8. 3): 作系动词, 后接 : 形容词 / 名词 / 分词 / 介词 短语等. “ ( 继续 ) 保持, 仍然处于 ( 某种状态 ) He remained silent. After years of hard work, Tom still remained a worker. The situation remained unchanged. She remained sitting/seated when they came in. That old man remained full of energy.

9. (4) 派生词： remains n. 剩余物；残余 ; 遗体；遗迹 The remains of a meal/ the remains of ancient Rome remaining adj. 剩下的；剩余的，常放名词前 The remaining food/ vegetables (5) 常用句式 sth. remains to be done ：某事尚待去做 Much remains to be done. It remains to be seen :…… 还要看情况发展 It remains to be seen whether he will succeed. remain in one’s memory 留在某人记忆中

10. 8: cure & treat 1): cure “ 治愈 ”, ( 指治疗的结果 ). 后常接 of. 表示治愈某人的（病） eg: This medicine cured him of his cough. 这种药治好了他的咳嗽. 2): treat “ 医治 ”, 指用各种医疗手段治疗病人. 后常接 for. eg: The doctor hope to treat his illness successfully. Which doctor is treating you for your disease?

11. 9.require (1)require +n. The occasion requires formal dress. (2)require sb. to do sth. I require him to think it over. All passages are required to fasten their belts. 所有的乘客都要求系安全带。 (3) require doing All cars require servicing regularly.

12. (4) require that clause +(should) do The situation requires that I should be there. 类似的词有 insist/demand/require/command /order/desire/suggest/advice/recommend/ propose 及其相对应的名词后面跟句子都用 (should )do. ●I insist that you ____(take) action to put this right. She insisted that she____ (be) innocent. ● I suggested to him that we (should) deal with another way. Are you suggesting that I am not telling the truth? take was

13. Practice Fill in the blanks with words in the text. 2. He ________________ her before she enter the building. (P1) 1. The weather station _______ strong wind for tomorrow. (P1) 3. The hospital tries to ________ that people can quickly see a doctor. (P2) 4. A group of educators are helping to ________ the educational system in the country.(P3) 5. The two friends promised to _________________ each other.(P3) forecasts caught a glimpse of ensure reform keep in touch with predicts see sb/sth for a moment v. & n.:become better contact with

14. Exercises 1The experienced merchant made ___that I would get into trouble doing business with a company like that. A an advice B a decision C a forecast D a design 2Having a trip abroad is certainly good for the old couple, but it remains _____ whether they will enjoy it. Ato see B to be seen C seeing D seen