机械化石灰竖窑出灰设备应达到的基本效果。

小张决定于周日上午8时到下午5时去拜访他的朋友小李，但小李上午9时至10时要去菜场买菜，下午2时到3时要午休，当小张周日拜访小李时，求下列事件发生的概率：

（1）小李在家；

（2）小张上午去拜访，小李不在家；

（3）小李在午休；

（4）小李在家，但未午休．

In Britain ,people often invite friends for a meal , a party or just coffee. People who know each other very well may visit each other’s houses without  an invitation(邀请),but if we invite new friends, usually an invitation is needed. When people invite someone to their homes , they often say ,“Would you like to come for dinner on Saturday ?” Answers are, “Thanks, we’d love to. What time?” or “I’m sorry, We’d love to ,but we have tickets for the concert.” However, it is not polite to say,“No, we wouldn’t.”

Sometimes, the British use expressions that sound like invitations but which are not invitations. For example. “You must come over for a drink sometime .” or “Let’s go out for a meal one of these days.”  These are usually just polite ways of ending a talk . They are not real invitations because they don’t mention an exact time or day. They just show that the person is trying to be friendly and the answers are ,“Yes , that would be nice .” or “OK, yes ,thanks.”

So next time you hear what sounds like an invitation, listen carefully. Is it a real invitation or is the person just being friendly?

小题1:It’s always necessary for        to visit each other’s houses with an invitation.

A．close friends

B．family members

C．neighbours

D．new friends小题2:It is not polite to answer the real invitation by saying “     “

A．Sorry. We’d love to, but we have tickets for the concert .

B．Thanks. We’d love to, what time?

C．Sure. We’d like to. Thanks a lot.

D．No, we wouldn’t!小题3:If the British just want to end a talk politely, they may say,”      ”

A．Would you like to come for dinner on Saturday?

B．Let’s go out for a meal one of these days.

C．Let’s go out for a meal on Saturday.

D．Shall we go for a drink this afternoon .小题4:The British often use “     ”to answer the invitations that are not real.

A．Yes , what time ?

B．No, that’s not a real invitation.

C．OK, yes , thanks.

D．No, you just want to be friendly.小题5:Which is the best title for the passage?

A．Britain.

B．Invitation.

C．A Talk with Friends.

D．A Letter to Friends.

下图是森林生态系统示意图，读图判断（1）——（3）题。

（1）图中所示反映的生态系统主要分布在

    ①亚洲   ②非洲   ③欧洲   ④北美洲 [ ]

    A、①②

    B、③④

    C、②④

    D、③④

（2）有关该森林生态系统分布地区的自然地理特征叙述正确的 [ ]

    A、该森林生态系统环境发育的典型土壤是棕壤

    B、河流水量丰富，夏季为汛期，冬季为枯水期

    C、该森林生态系统正遭受严重破坏

    D、雨季来临时草木茂盛，百花盛开，旱季草木凋零

（3）有关该森林生态系统分布地区，人文地理特征叙述正确的

    ①一般是世界人口最为稀疏地区之一   ②交通发达对外联系便利

    ③农业发达，高度的机械化   ④适宜热带作物种植生产 [ ]

    A、①②

    B、①③

    C、①④

    D、②④

属于“母病及子”的是（）

A.心病及脾

B.肝病及心

C.肾病及脾

D.脾病及肝

E.脾病及肾

水泥不宜在仓库久存，一般水泥从出厂到使用不宜超过（）。

A、一个月

B、两个月

C、三个月