My sister has__________friends at school．But she has________

(1)【◆题库问题◆】：[单选] My sister has__________friends at school．But she has__________good friends．
A．few，a few
B．a few，few
C．little，a little
D．a little，little

【◆参考答案◆】：B

(2)【◆题库问题◆】：[单选,材料题] What prompted Sequoyah to develop hisalphabet?Sequoyahwas a young Cherokee Indian．son of a white trader and an Indian Squaw(北美印第安女人)．At an early age，hebecame fascinated by“tile talking leaf”，an expressionthathe used to describe the white man’s written records．Although many believe this"talking leaf”to be a gift from tileGreat Spirit，Sequoyah refused to accept that theory．Like other Indians oftile period，he wasilliterate，but his determination to remedy tilesituation led to the inventionof a unique 86 character alphabet based on thesound patterns that he hearD． 　　Hisfamily and friends thought him mad，but while recuperating(恢复)from a huntingaccident．he diligently andindependently set out to create a form of communication for his ownpeople aswell as for other Indians．In l821，after twelve years of work，he hadsuccessfully de。veloped a written language that wouldenable thousands of Indians to read and writE． 　　Sequoyah’s desire to preserve wordsand events for later generation has caused him to be remembered among theimportant inventors．The giant redwood treesof-California，called“se-quoias(红杉)”in his honor，will further imprint his namein history． 根据以上内容，回答下面的题目。What is the mostimportant reason that Sequoyah wiU be remeIll]bered?
A．People were writing thingsabout him that he couldn’t reaD．
B．He wanted to become famous．
C．After his hunting accident，he needed something to keep him busy．
D．Future generations．

【◆参考答案◆】：D

(3)【◆题库问题◆】：[单选] 已知f(x)=x3+3，则f’(3)=(　　)。A．27 B．18 C．16 D．12
A．
B．
C．
D．

【◆参考答案◆】：A

【◆答案解析◆】：由f‘(x)一3x2，得f’(3)=3×32=27．

(4)【◆题库问题◆】：[单选] 根据下列短文，回答{TSE}题。　　Despite the fact that today viruses(病毒)are known to cause cancer in animals and incertain plants，there exists a great reluctance to accept viruses as being of importance in humancancer．Basic biological phenomena generally do not differ strikingly as one goes from one spe—cies to another．It should be recognized that cancer is a biological problem and not a problemthat is unique for man．Cancer originates when a normal cell suddenly becomes a cancer cellwhich multiplies widely and without apparent restraint．Cancer may originate in many differentkinds of cell，but the cancer cell usually continues to carry certain traits(特性)of the cell of origin．The transformation of a normal cell into a cancer cell may have more than one kind of causE．but there is good reason to consider the relationships that exist between viruses and cancer．　　Since there is no evidence that human cancer，as generally experienced，is infections，manypersons believe that because viruses are infections agents they cannot possibly be of importancein human cancer．However，viruses can mutate(突变)and examples are known in which a vi．rus that never kills its host can mutate to form a new strain of virus that always kills its host．Itdoes not seem unreasonable to assume that an innocuous(无害的)latent(潜伏的)virus mightmutate to form a strain that causes cancer．Certainly the experimental evidence now available isconsistent with the idea that viruses as we know them today，could be the causative(引起……的)agents of most，if not all cancer。including cancer in mall．{TS}Cancer should be considered to be a biological problem rather than a medical one because_________．
A．viruses are known to cause cancer in animals
B．at present，human cancer is not believed to be contagious(传染的)
C．there are many known causes for the transformation of a normal cell to a cancer cell
D．results of experiments on plants and animals do not vary greatly from species to species

【◆参考答案◆】：D

(5)【◆题库问题◆】：[单选] The room ________oftencleaned by the students．
A．will be
B．has
C．is
D．was

【◆参考答案◆】：C

(6)【◆题库问题◆】：[单选] 活化部分凝血活酶时间(APTT)测定缩短见于（　　）
A．维生素K缺乏症
B．严重肝病
C．SLE
D．妊娠高血压综合征
E．DIC纤溶亢进期

【◆参考答案◆】：D

【◆答案解析◆】：略

(7)【◆题库问题◆】：[单选] EverythingDepends on__________we get araise in our salary．
A．what
B．that
C．if
D．whether

【◆参考答案◆】：D

(8)【◆题库问题◆】：[单选] 毛泽东第一次公开使用“人民民主专政”概念的文章是（　　）
A．《将革命进行到底》
B．《论人民民主专政》
C．《新民主主义论》
D．《论联合政府》

【◆参考答案◆】：A

(9)【◆题库问题◆】：[单选]
A．insure
B．leisure
C．measure
D．pleasure

【◆参考答案◆】：A

(10)【◆题库问题◆】：[单选,材料题] 如给此文拟一个题目，最恰当的一项是（　　）根据材料，回答下面的题目，①污染物在生态系统中的运转规律是环境生物学研究的主要内容之一。当污染物排入大气或水体后，它的迁移规律是受环境中各生态因子(如风向、风速、光、温、水等)a的。b 大气环流和洋流的c，污染物能被输送到很远的地方，d 达到地球的任何一个角落。例如南极洲的企鹅、北极圈的北极熊以及爱斯基摩人的身上，都发现了DDT的成分。因此研究污染物在大气和水体中的迁移规律是极重要的。②污染物在生态系统中通过食物链传递时，生物对有毒物质有极强的吸收和富集能力。例如脂溶性的DDT，在大气中的浓度为0．000003ppm，降落到海水中为浮游生物吞食后，可富集成0．04ppm，为大气富集的一万三千倍。浮游生物为小鱼所吞食，小鱼体内DDT浓度增加到0．5ppm，为大气富集的十四万三千倍。小鱼再被大鱼吞食，大鱼体内DDT浓度增加到2．00ppm，为大气富集的五十七万二千倍。大鱼再为水鸟吞食，水鸟体内DDT浓度可高达25ppm，为大气富集的八百五十八万倍。污染物通过食物链的富集作用最终毒害人类，使人类发生各种公害病。例如水俣病是汞中毒；骨痛病是镉中毒；脱发症是铊中毒；婴儿的白血症是由于硝酸盐化肥中毒的结果。所以，研究有毒物质在食物链中的迁移规律，防止毒物转移到人体，也是环境生物学的主要任务。③污染物的毒害还可以改变生态系统成分，或者通过改变能量蓄存的大小和输入对输出的比率，使生态系统的结构发生变化，从而破坏生态系统的平衡。污染物还能破坏化学信息系统，导致生物信息传递的混乱，破坏整个系统的平衡。污染物还可能破坏某些生物性激素及性引诱剂系统，降低其繁殖的能力。④在生态系统中有毒物质有污染环境毒害生物的一面，而生态系统也有自净污染物能力的一面。如大气流动能稀释空气中的毒物浓度；水、土壤中生物氧化、微生物的分解及水的稀释，也能降低其中的毒物含量；而植物则具有很强的吸毒解毒的能力。有人用每升含氰三十毫克的污水灌溉春油菜，土壤中的氰经四十八小时后基本分解完毕；酚进入植物体后，植物能把酚转变为糖甙而失去毒性；氰进入植物体后与丝氨酸结合形成腈丙氨酸，再转化为天冬醯胺及天冬氨酸而自行解毒；二氧化硫进入植物体后能形成剧毒的亚硫酸，而植物又能把亚硫酸氧化为硫酸，减毒三十倍。所以研究生态系统中各环境要素和生物对有毒物质的自净能力和容量，同样是环境生物学的主要内容。依次填入第①段a、b、c、d四处的词语和关联词最恰当的一项是（　　）
A．环境生物学研究的主要方法
B．环境生物学研究的主要内容
C．污染物的毒害
D．污染物迁移规律的研究

【◆参考答案◆】：B

【◆答案解析◆】：本题考查对文章内容的概括能力。注意提取全文的线索和主要话题。以B项为标题，能准确地概括全文内容的精髓。