②It is very pleasant for him to travel and to try_out and explore whatever is new.

③I try_on the beautiful overcoat, but it is too tight. [写美]

④(2018·北京高考书面表达)他们洗了茶壶，加了茶叶，往茶杯里倒了些水，他们按照我的指导，试着学习泡茶的技巧。

Washing_the_tea_pots,_adding_tea_leaves,_and_pouring_water_into_the_cups,_they_followed_my_instruction_and_were_trying_for_the_skills_of_making_tea.

2．let out放出，释放；发出(声音)；放大(衣服)；泄露 [辨清] 写出下列句中let out的含义

①He let out a long sigh, mainly of relief, partly of sadness.发出 ②The waist of the pants needs to be let out.放大

③Who let out the exam results? They were supposed to be confidential until tomorrow.泄露

④If he was given five years' imprisonment, he could be let out after three years.释放

[记牢]

let alone let down let go (of) let off [练通] 选用上述短语填空 ⑤Don't let_off fireworks near the house.It's dangerous.

⑥In a voice full of reproach, she told the naughty boy that he had let_down the whole class.

⑦Its water is so contaminated that in some areas it is unsafe even to touch, let_alone use for irrigation or drinking.

⑧Don't let_out your secret to those who easily become expansive after a few drinks.

[写美]

⑨(2015·广东高考书面表达)他们不关心别人。更不用说主动帮助同学了。 They_don't_care_about_others.Let_alone_give_an_offer_to_help_other_classmates.

3．wear sb.out使筋疲力尽；使厌烦

更不用说 放下，降低；使失望 放开，松手 宽恕，免除；燃放

[记牢]

(1)wear (sth.) out wear (sth.) away wear down (2)worn adj. be worn out [练通] 用wear的相关短语填空

①Every time she consulted her watch, she wondered if the batteries were wearing_out.

②The young people run around kicking a ball, wearing themselves out. ③Water can still wear_away rocks after a long time, even though the rock is harder.

④We hope your persuasion will wear_down his opposition. 完成句子

⑤You have been working for a whole day without a rest.You must_be_absolutely_worn_out.

你工作了一整天都没有休息，一定累坏了。

⑥These teeth do hard work a great deal of the time, and they are continually wearing_away.

这些牙齿长时间进行费力的咀嚼，因而不断被磨损。 [写美]

⑦(2009·北京高考书面表达)看到一排排的树，我们都有一种成就感，虽然我们有点累了。

Seeing_the_lines_of_trees,_we_all_had_a_sense_of_achievement_although_we_were_a_bit_worn_out.

[句式集释]

1．if省略结构

[教材原句] Have you ever seen a doctor? If_so,_what happened? [悟拓展例句]

(1)You can come to Beijing for a holiday. If_so,_I'll show you around the Summer Palace.

你可以来北京度假。如果你来的话，我将带你参观颐和园。

(2)If_possible,_try and go to bed and wake up at the same time every day.

穿破；用坏 (因重复使用而)变薄；磨损 (通过不断攻击或施加压力)使衰弱，使意志薄弱 用坏的；用旧的；筋疲力尽的 (人)精疲力竭；(物)破烂不堪

如果可能的话，尝试每天都在同一时间睡觉和起床。 (3)Please keep in mind to correct my mistakes if_any. 请记住如果有错的话，给我纠正过来。 [析用法规则]

(1)if省略结构：若if从句的主语与主句的主语一致，且从句中有be动词时，可将从句主语与be动词省略； (2)if省略结构的惯用表达： if not 如果不是这样的话 用法归纳 if ever 若曾经有的话 if any 如果真有的话；即使有(任何)…… if necessary 如有必要 if possible 如有可能 if anything 如果有……的话 [背写作佳句]

(1)(2015·全国卷Ⅱ满分作文)If possible, please let us know and we'll wait for you at the school gate at 9：00 in the morning.(要点句)

(2)(2015·全国卷Ⅰ满分作文)We would especially welcome articles about how Americans spend their holidays and festivals.You can write anything relevant if any.(要点句)

2．并列连词while

[教材原句] Some acupuncturists insert needles at or near the body part affected by the disease, while others select points according to the symptoms that the patient has.

[悟拓展例句]

(1)Some people waste food while others haven't enough. 有些人浪费粮食，然而有些人却吃不饱。

(2)While_we_were_swimming in the river, we saw a fish jump out of the water. 当我们正在河中游泳时，看见一条鱼跃出了水面。

(3)While_the_Internet_is_of_great_help_to_us,_I don't think it is a good idea to spend too much time on it.

尽管互联网对我们有很大的帮助，我认为在这方面花太多的时间并不是个好主意。 (4)We can surely overcome these difficulties while_we_are_closely_united. 只要我们紧密地团结在一起，一定能克服这些困难。

[析用法规则]

(1)while用作并列连词，意为“而，然而”，表前后意义上的对比或转折。 用法归纳 (2)用作从属连词，引导时间状语从句，意为“当……时候，和……同时”。 (3)用作从属连词，引导让步状语从句，意为“尽管”。 (4)用作从属连词，引导条件状语从句，意为“只要”。 注意事项 [背写作佳句]

(1)(2016·江苏高考满分作文)Some people benefit from it, while others feel puzzled at who to vote.(要点句)

(2)(2018·全国卷Ⅰ满分作文)What's more, when you are enjoying the meal, you need to avoid making noises while chewing food.(要点句)

[词块、句式过关综合训练]

Ⅰ.选词填空

try out, be cautious about, due to, pick out, carry out, subscribe to, open up, let out

1．Some people subscribe_to as many as two or three different newspapers every year.

2．Oxygen is let_out through the leaves and roots of the plants.

3．All the important sentences in the article were picked_out in red lines. 4．They opened_up large areas of wasteland and turned them into farmland. 5．Attendance at the meeting was small, partly due_to the absence of teachers. 6．All these experiments are carried_out with practical rather than scientific aims in view.

7．The method seems good but it needs to be tried_out.

8．Doctors are_cautious_about this new treatment, which is understandable. Ⅱ.一句多译

1．活泼的孩子更可能成为活跃和健康的成年人。

①It_is_more_likely_that physically active children become active and healthy adults.

②Physically active children are_more_likely_to become active and healthy adults.

2．如果可能的话，最好还是挑选有机食品。

(1)while引导时间状语从句时，从句谓语动词必须是延续性的动词； (2)while引导让步状语从句时，一般放在句首，不放在句末。