英语2011年《随堂优化训练》人教新目标版九年级Unit 15 Section A

(共17张PPT)
Unit 15
We're trying to save
the manatees!
Section A
1．We're trying to save the manatees！我们正在努力挽救
海牛！
try to do sth.意为“努力做某事”，其否定形式是在不定形
式前加 not。如：
I tried hard not to laugh.我极力忍住不笑。
try to do sth.与 try doing sth.
(1)try to do sth.意为“努力做某事；尽力干某事”，表示想
尽一切办法要把事情办成。如：
We'll try to impove our English.
我们要努力提高英语。
(2)try doing sth.意为“尝试干某事；试着去做某事”，表示
试着去做做看。如：
I tried knocking at the door, but nobody answered.我试着敲了
敲门， 但没有人回应。
try one's best to do sth.＝do one's best to do sth.
尽某人最大的努力去做某事
try on 试穿
try out 试验；试用
have a try 尝试一下
①She is trying ________ weight because she is too heavy.
A．lose
B．losing
C．loses
D．to lose
解析：D
题意：她正在努力减肥，因为她太胖了。try to do
努力做；try doing 尝试做。
②不要害羞，尝试一下吧！
have
a
try
③她尽自己最大的努力去帮助贫困儿童。
She ________ ________ ________ ________ help the poor
children.
did
her
best
to
Don't be shy.Just ________ ________ ________.
2 ．They provide homes for many endangered animals and
help to educate the public about caring for them.它们为许多濒
危动物提供住处， 并帮助培训人们怎样去照顾它们。
(1)provide sth.for sb. 意为“为某人提供某物”， 相当于
provide sb.with sth.。如：
The factory provides lunch for its workers.
＝The factory provides its workers with lunch.
这家工厂为员工提供午餐。
(2)care for 意为“关心；关怀；照顾”。如：
We must care for each other.我们要互相关心。
(1)care for 意为“照顾”时，相当于 take care of/look after；
意为“关心”时，相当于 care about。
(2)care for 还可意为“喜欢；介意”。如：
Do you care for pop music？你喜欢流行音乐吗？
①What did the company ________ for the children in the
poor areas
A．pretend
B．offer
C．provide
D．give
解析：C
provide sth.for sb.＝provide sb.with sth.为某人提
②Who is ________ the old people in the hospital
A．caring for
C．taking care
B．care about
D．look after
解析：A
care for 意为“照顾”时，相当于 take care of/look
after；句中有 be 动词 is，故应用现在进行时。
供某物。
复习动词的时态和语态
初中阶段所学的主要时态有：一般现在时、一般过去时、
一般将来时、现在进行时、过去进行时、过去将来时、现在完
成时和过去完成时。而英语中的语态分为主动语态和被动语态
两种。主动语态表示主语是谓语动作的执行者或发出者，被动
语态表示主语是谓语动作的承受者。
语态
示例
时态 主动语态 被动语态
一般现在时 do/does am/is/are done
一般过去时 did was/were done
一般将来时 am/is/are going to do am/is/are going to be
done
will/shall do will/shall be done
现在进行时 am/is/are doing am/is/are being done
下面以动词 do 为例来说明不同时态中动词的语态变化。
语态
示例
时态 主动语态 被动语态
过去进行时 was/were doing was/were being done
过去将来时 was/were going to do was/were going to be
done
would/should do would/should be done
现在完成时 has/have done has/have been done
过去完成时 had done had been done
续表
注意：(1)情态动词的被动语态的基本结构为：情态动词＋
be done。
(2) 使 役 动 词 (let, make, have) 和 感 官 动 词 (see, feel, watch,
notice 等)用于被动语态时，不定式前必须加 to。如：
Betty was made to practise playing the piano every day. 贝蒂
要每天练习弹钢琴。
A stranger was being watched to enter the hall.
一个陌生人被看着走进了大厅。
①—When ________ he ________ for London
—The day before yesterday.He ________ for two days.
A．did; leave; has been away
B．has; left; has left
C．did; leave; has left
D．will; leave; is leaving
解析：A
根据答语“The day before yesterday.”可知问句用
一般过去时；根据答语第二句后面的 for two days 可知第三空用
现在完成时，且谓语动词要用延续性动词。故选 A。
②If you ________ carefully, you ________ the report well.
A．will listen; will be understood
B．will listen; understand
C．listen; will understand
D．listen; understand
if 引导的条件状语从句遵循“主将从现”原则。
解析：C
故选 C。
③—Do you know whether Mary will go there
—I'm not sure.She says she will stay at home unless she
________ to the party.
A．is inviting
C．was invited
B．invites
D．is invited
解析：D
这是一个由 unless 引导的条件状语从句。主句用
一般将来时，从句用一般现在时表将来，且 Mary 与 invite 之间
是被动关系，故选 D。
④A talk on Chinese history ________ in the school hall next
week.
A．be given
C．will be given
B．has been given
D．will give
解析：C 题意：下星期在学校礼堂将举行一个关于中国历
史的演讲。谓语 give 与主语 a talk 之间构成动宾关系，应用被
动语态；且由时间状语 next week 可知用一般将来时，故选 C。
⑤—Did you see Tom at the party
—No, he ________ by the time I got there.
A．left
B．was leaving
C．had left
D．has left
解析：C
题意：“你在晚会上看见汤姆了吗？”“没有。
他在我到之前就离开了。”by the time 意为“在……之前”，谓
语动词常用完成时。由 I got there 可知应用过去完成时。
A．talked
B．talks
C．is talking
D．was talking
解析：D
题意：当她父亲回到家时，琼正在和朋友交谈。
根据题意可知用进行时，且由 came 可知应用过去时态，故选 D。
⑥When her father came back home, Joan ________ with her
friend.