26．After graduation from high school we will reach a point ________ we have to decide which university to attend．
A．that B．what C．which D．where
25．What really ________ is not failure itself, but the attitude we have towards it．
A．matters B．applies C．stresses D．functions
24．I have no ________ what is in fashion this summer．I bought this dress quite by accident．
A．mind B．opinion C．idea D．thought
23．-- Will you two go to the exhibition tomorrow?
-- No．We're going shopping．________ at least I'm planning to．
A．And B．Or C．But D．So
22．Shall we take ________ short break? I want to make ________ call．
A．the；a B．a；the
C．the；the D．a；a
第一节：单项填空(共20小题；每小题0．5分，满分10分)
从A、B、C和D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该选项标号涂黑。
21．－Shelly was late for the oral class this morning．
－ ________? As far as I know, he never came late to class．
A．How come B．So what C．Why not D．What for
第二节(共15小题; 每小题1．5分，满分22．5分)
请听下面5段对话或独白，选出最佳选项。每段对话或独白读两遍。
请听第6段材料，回答第6至8题。
6．Who is the woman speaking to?
A．Her husband． B．A policeman． C．A fire-fighter．
7．What’s the woman asking for?
A．Advice on safety． B．Money． C．Help．
8．What has happened to the woman’s house?
A．It’s been burnt down． B．It’s been broken into． C．It’s been damaged．
请听第7段材料，回答第9至11题。
9．What does the woman want to know?
A．The best way to go to New York．
B．The quickest way to go to New York．
C．The cheapest way to go to New York．
10．How much does it cost the woman to go to New York by bus?
A．$5． B．$15． C．$50．
11．What do we know from the conversation?
A．The woman will go to New York by bus．
B．It will take the woman five hours to go to New York by bus．
C．The woman won’t go to New York by bus．
请听第8段材料，回答第12至14题。
12．When will the ballet performances be on?
A．This week． B．Next week． C．Next month．
13．When will the man attend the performance?
A．On Sunday evening． B．On Thursday evening． C．On Friday evening．
14．How much does the man pay for the tickets?
A．$20． B．$10． C．$40．
请听第9段材料，回答第15至17题。
15．What’s the probable relationship between the two speakers?
A．Good friends． B．Strangers． C．Classmates．
16．What can we know about the woman from the conversation?
A．She won a cup in last week’s tennis competition．
B．She is a science expert．
C．She works at St Jude’s Training College．
17．How long has the man been in the science department?
A．Half a year． B．More than a year． C．Two years．
请听第10段材料，回答第18至20题。
18．How often do people in the Historical Society meet?
A．Every week． B．Every other week． C．Every three weeks．
19．What is the main purpose of the Historical Society?
A．To find out what they can learn from history．
B．To study the people in history．
C．To learn about what happened in the past．
20．What do the Historical Society plan to do this year?
A．Study the history of the town．
B．Visit historic houses in the college．
C．Visit more historic places．
第一节(共5小题；每小题1．5分，满分7．5分)
请听下面5段对话, 选出最佳选项。每段对话仅读一遍。
1．Where does the conversation most probably take place?
A．In a park． B．In a zoo． C．In a pet store．
2．What does the woman mean?
A．Things here are very cheap．
B．Things here are not cheap．
C．She doesn’t know whether things here are cheap or not．
3．Where are the two speakers going to plant the tree?
A．By the front door．
B．At the back of the garage．
C．At the end of the garden．
4．Where does the conversation take place?
A．In a shop． B．In a hotel． C．In a restaurant．
5．What do we learn from the conversation?
A．The man went to New Zealand during Christmas．
B．The man visited New Zealand during the summer holiday．
C．The man’s parents live in New Zealand．
43．I．(10分)某遗传病研究所对一地区的人类遗传病进行调查，发现有一种遗传病表现出明显家族倾向，且往往是代代相传，下图为该研究所绘制是的此病在这个地区10000人中的发病情况图。请分析回答：
(1)控制该图的基因最可能位于 染色体上，主要理由是 。
(2)对某患病男生的家族进行分析，发现他的祖父母、父亲和一位姑姑都患病，另一姑姑正常；患病的姑姑生了一个患病的女儿，其他家族成员正常。
①请绘出相关遗传系谱图，并标出该男性父母的基因型(该致病基因用A或a表示)。
②该男患者与其姑姑的患病女儿的基因型相同的概率是 。
③该男性患者经手术治疗后表现正常，与表现型正常的女性婚配，你认为其后代是否会患该病？ 。
为什么？ 。
④据调查，该男性患者夫妻色觉正常，妻子的弟弟是色盲(XbY)，则他们生育完全正常孩子的可能性是 ，妻子卵细胞的基因型是 。
(3)通过 等手段，对遗传病进行监测和预防，在一起程度上能够有效地预防遗传病的产生和发展。
II．(10分)某种野生植物有紫花和白花两种表现型，已知紫花形成的生物化学途径是：
A和a、B和b是分别位于两对染色体上的等位基因，A对a、B对b为显性。基因型不同的两白花植株杂交，F1紫花∶白花=1∶1。若将F1紫花植株自交，所得F2植株中紫花：白花=9∶7
请回答：
(1)从紫花形成的途径可知，紫花性状是由 对基因控制。
(2)根据F1紫花植株自交的结果，可以推测F1紫花植株的基因型是 ，其自交所得F2中，白花植株纯合体的基因型是 。
(3)推测两亲本白花植株的杂交组合(基因型)是 或 ；用遗传图解表示两亲本白花植株杂交的过程(只要求写一组)。
(4)紫花形成的生物化学途径中，若中间产物是红色(形成红花)，那么基因型为AaBb的植株自交，子一代植株的表现型及比例为 。
42．(10分)下图示人体内某些淋巴细胞的分化和免疫过程，数字表示过程，字母表示细胞或物质。请分析并回答：
(1)造血干细胞在胸腺和骨髓内转变为a、b、c等细胞的过程被称为 。
(2)③过程是在X的刺激和a 细胞等的参与下共同完成的。这属于 免疫。与③过程相比，④过程的应答特点是 。
(3)⑤过程的产物Y的化学本质是 ，参与其合成并分泌的膜性细胞器有
等。该物质主要存在于 中，在多数情况下，该物质能使一些抗原凝聚，进而被 吞噬消化。
(4)若X是禽流感病毒，则患者彻底消灭X必须依靠a增殖分化的淋巴细胞去裂解 。如果X是HIV，则由于图中 细胞的大量死亡，导致患者丧失一切免疫功能而死亡。
