经纬仪导线测量可以用皮尺或视距测量的方法来量边长。（）

第二部分语言知识运用(共二节，满分45分)

第一节语法填空（课文段落填空，共10小题，每小题1.5分，满分15分）

仔细阅读下面的短文，根据上下文填写适当的词语或使用括号中的词语的适当形式填空。                        A

On this important feast day, people eat food in the shape___11__ skulls and cakes with“bones” on it. ……The Western holiday Halloween also had ___12__ origin in old __13__ (believe) about return of the spirits of the dead people. It is now a children’s festival, when they ___14___ dress up and go to their neighbours’ homes to ask for sweets. If the neighbours do not give any sweets, the children might play __15___ trick on them.

B

Wang Peng sat in his empty restaurant____16___（feel） very frustrated. It had been a very strange morning. Usually he got up ____17___and prepared his menu of Barbecued Mutton kebabs, roast pork , stir-fried vegetables and ___18___ (fry) rice. By now his restaurant ought to be full of people but not today. He thought of his foods cooked in __19___ (hot), finest oil and nothing could be better. Suddenly he saw his friend Lao Li coming to other place to eat, something must have happened If Lao Li was not coming to his restaurant ___20___ he always did.

从7名同学（其中4男3女）中选出4名参加环保知识竞赛，若这4人中必须既有男生又有女生，则不同选法的种数为（  ）

A．34

B．31

C．28

D．25

下列类型的合同中，对于承包人来说承担的风险较大的是（）。

A.固定总价合同

B.固定单价合同

C.可调价格合同

D.成本加酬金合同

戴额镜对光时，要想看清楚被检查部位，应注意保持______、______、______和______四点成一直线。

下图所示是用于气体制备、干燥、性质验证、尾气处理的部分仪器装置（加热及夹持固定装置均已略去）。请根据下列要求回答问题。

（1）若烧瓶中盛装锌片，分液漏斗中盛装稀硫酸，则：

① 当仪器连接顺序为A→C→B→B→D时，两次使用B装置，其中所盛的药品依次是CuO、无水CuSO₄粉末。此实验的目的是____________。D装置的作用是__________________。

② 为了使B中CuO反应充分，在不改变现有药品的条件下，可采取的方法有（写一种）__________。

③ 加热前必须进行的操作是________________。

（2）若烧瓶中盛装Na₂O₂固体，分液漏斗中盛装浓氨水，慢慢打开分液漏斗的活塞，则：

① 烧瓶内产生的气体主要有（写化学式）____________________。

② 用产生的气体做氨的催化氧化实验，各仪器装置按气流方向从左到右连接顺序是（填字母）

（ 　）→（ 　）→（ 　）→E

③试管B中的反应方程式为___________________________。