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6. block vt. 堵塞;阻碍n. 街区;木块;石块

[典例]

1). He lives three blocks away from here. 他住的地方与此处相隔三条街.

2). A large crowd blocked the corridors and exits. 人群把走廊和出口都堵死了

[重点用法]

a block of 一大块

block out 堵住

block off 封锁;封闭

block up 堵塞;阻碍

[练习] 中译英

1). 他们在绕楼群散步。

__________________________________________________________________________________________

2). 大雪阻塞了所有通往苏格兰的道路。

__________________________________________________________________________________________

答案:

1). They are taking a walk round the block.

2). Heavy snow is blocking all roads into Scotland.

 

Ⅳ重点词组  (旨在提供综合运用所需材料)

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5. straight adj.笔直的;正直的 adv. 直接;挺直

[典例]

1). This is a straight road. 这是一条直路。

2). She went straight from school to university. 她中学一毕业就马上进了大学。

[练习] 中译英

1).我的领带系得正不正?

2). 一直往前看。

答案:  1). Is my tie straight?

2). Look straight ahead.

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4. recognize vt. 辨认出;承认;公认

[典例]

1). I recognized her by her red hat. 我根据她的红色帽子认出了她。

2). Everyone recognized him to be the lawful heir/as the lawful heir. 大家都承认他为合法继承人。

[重点用法]

recognize…by sth 认出或识别某人/某事物

recognize…as sth 承认某人/某事物是

recognize…to be承认…是

[练习] 中译英

1). 人们都承认他是他们理所当然的领袖。

__________________________________________________________________________________________

2). 我认出他是我朋友的哥哥。

__________________________________________________________________________________________

答案: 

1). He is recognized to be their natural leader.

2). I recognized him as my friend’s brother.

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3. request n.& v. 请求;要求

[典例]

1). Your requests will be granted. 你的请求能够获准。.

2). I requested him to help. 我请求他帮忙。

[重点用法]

at sb's request/at the request of sb应某人之请求

by request (of sb) 应(某人的)请求; 经(某人之)要求:

on request 一经要求: request sth (from/of sb)要求, (尤指)请求某人做某事:

[练习] 中译英。

1). 我是(特别)应你要求而来。

__________________________________________________________________________________________

2). 请不要吸烟。

__________________________________________________________________________________________

答案: 1). I came at your (special) request.  

2). You are (kindly) requested not to smoke.

 

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2. command n.& v. 命令;指令;掌握

[典例]

1). The officer commanded his soldiers to fire.  那名军官命令士兵们开火。

[重点用法]

command sb. to do sth 命令某人做某事

be under the command of 由…指挥,由…控制

be in command of   控制…

be at one’s command 听任某人支配

have / take command of…  指挥…

[特别提醒]

command后接that从句时要用虚拟语气

[练习] 用适当的介词填空

1). For the first time in years, she felt ______ command of her life.

2). The army is __________ the king’s direct command.

3). The police arrived and took command ________ the situation.

答案: 1). in  2). under  3).  of

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单元要点预览(旨在让同学整体了解本单元要点)

词汇
部分
词语
辨析
1. voyage/journey/travel/trip/tour
2. frequent/common/ordinary/general/regular
3. especially/ specially
4. a number of / the number of
词形
变化
1. actual adj. 实际的
actually adv. 实际上;事实上
 
2. base n. 基地;基础
base v. 以……为根据
basic adj. 基本的
3. east n. 东方
eastern adj. 东方的;东部的
 
重点
单词
1. present n. 礼物adj. 在场的;目前的vt. 赠送 
2. command n.& v. 命令;指令;掌握
3. request n.& v. 请求;要求
4. recognize vt. 辨认出;承认;公认
5. straight adj.笔直的;正直的 adv. 直接;挺直
6. block vt. 堵塞;阻碍n. 街区;木块;石块
重点
词组
1.    come up走近;上来;提出
2.    make use of 利用;使用
3.    such as例如;像这种的
4.    play a part (in) 扮演一个角色;参与
5.    because of 因为;由于
重点句子
1. Why do you think people all over the world want to learn English?
2. 状语从句中的省略
重点语法
直接引语和间接引语 (见语法部分)

I词语辨析  (旨在提供完形填空所需材料)

1. voyage/journey/travel/trip/tour
[解释]
voyage: 去国外或较远地方的海上旅行
journey: 指较远的从一地到另一地旅行
travel:  一系列的旅程,尤指旅行的概念
trip:   (短途)旅行
tour:   为了公务、娱乐或教育参观多处名胜的旅行
[练习]用上面所提供的辨析词的适当形式填空
1). It is tiring to take a long _______ by train from Paris to Moscow.
2). The _________ from England to Australia used to take several months.
3). We’ll have time for a ______ to France next weekend.
4). We went on a guided ______ round the castle.
答案:    1). journey  2). voyage   3). trip   4). tour
2. frequent/common/ordinary/general/regular
[解释]
frequent经常的,时间或间歇很短的发生或出现
common 通常的、常发生的、广泛使用或众所周知的
ordinary指种类普通且不能从其他中加以区别的,有时含贬义
general一般性的,到处的;不限于领域、地区或应用     
regular平常的;惯例的;习惯性的、通常的或正常的
[练习]用上面所提供的辨析词的适当形式填空
1). This is a ___________ problem.
2). He often makes ___________ errors of judgment.
3).Look at the train’s ___________ schedule.
4).The violinist gave a very ___________ performance marked by an occasional memory lapse.
5).As a ____________ rule I am home by six.
答案:   1). common   2). frequent   3). regular   4). ordinary   5). general
3. especially/ specially
[解释]
especially意思是“尤其,特别”,表达事物的不寻常或特别重要
specially 指为了某一目的,专门做某事
[练习]用上面所提供的辨析词的适当形式填空
1). Our city is very beautiful, ___________ in spring. 我们城市很美丽,尤其在春天。
2). He came here ___________ to ask you for help. 他是专程来这里向你求助的。
答案: 1). especially    2). specially
4 a number of / the number of
[解释]
a number of意思是“若干;许多”
the number of意思是“……的数目”
[练习]用上面所提供的辨析词的适当形式填空
1). Today ___________ people learning Chinese in the world is raising rapidly.
2). ____________ books in the market are in English.
答案: 1). the number of      2). A number of

II词性变化 (旨在提供语法填空所需材料)

1. actual adj. 实际的
actually adv. 实际上;事实上
 
2. base n. 基地;基础
base v. 以……为根据
basic adj. 基本的
3. east n. 东方
eastern adj. 东方的;东部的
 
[练习]用括号内所提供词的适当形式填空
1)  What did he _________ say? (actual)
2)  The __________ cost was much higher than we had expected. (actual)
3)My knowledge of physics is pretty _________. (base)
4)She used her family's history as a _________ for her novel. (base)
5)This novel is ________ on historical facts. (base)
6)He is interested in ________ customs. (determine)
7) The wind is blowing from the __________. (determine)
答案:  1) actually        2) actual     3) basic         4) base
5) based      6) eastern    7) east            

Ⅲ 重点词汇 (旨在提供综合运用所需材料)

1. present n. 礼物adj. 在场的;目前的vt. 赠送 

[典例]

1). The mountain bike is a birthday present from my parents.这辆山地自行车是父母给我的生日礼物。

2). I am afraid I can’t help you at present. 恐怕现在我没法帮助你。

3). Were you present when the decision was announced? 宣布那项决定时你在场吗?

4). In the present case, I advise you to wait. 按照目前的情况,我建议你等等。

5). May I present my new assistant to you? 请允许我向你介绍我的新助手。

[重点用法]

make sb. a present of sth.将某物赠送给某人

at present/ at the present time目前

be present at出席

present-day attitudes/fashion现在的态度/流行款式

present sb.with sth = present sth. to sb.把某物送给某人

[练习] 中译英

1). 所有(那些)在场者一眼就看出那个错误。

__________________________________________________________________________________________

2). 这本书是哥哥赠送给我的。

__________________________________________________________________________________________

答案: 1). The mistake was obvious to all (those) present. 

2). This book was a present from my brother.

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21、(本小题满分13分)设函数,其中为正整数.

(Ⅰ)判断函数的单调性,并就的情形证明你的结论;

(Ⅱ)证明:

(Ⅲ)对于任意给定的正整数,求函数的最大值和最小值.

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20、(本小题满分13分)椭圆的左、右焦点分别为F1F2,过F1的直线l与椭圆交

AB两点.

  (Ⅰ)如果点A在圆(c为椭圆的半焦距)上,且|F1A|=c,求椭圆的离心率;

  (Ⅱ)若函数的图象,无论m为何值时恒过定点(ba),

的取值范围.

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19、(本小题满分13分)已知数列满足

(Ⅰ)求

(Ⅱ)已知存在实数,使为公差为的等差数列,求的值;

(Ⅲ)记,数列的前项和为,求证:.

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18、(本小题满分12分)如图,斜三棱柱,已知侧面与底面ABC垂直且∠BCA =90°,∠=2,若二面角为30°.  

(Ⅰ)证明;            

(Ⅱ)求与平面所成角的正切值;

(Ⅲ)在平面内找一点P,使三棱锥为正三棱锥,  

并求P到平面距离.

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