问题 实验题

(18分)请据图填空:

A.蚯蚓

B.草鱼

C.青蛙

D.蜜蜂E.麻雀(1)具有变态发育的是           (2)终生生活在水中的是          

(3)适于飞行生活的是           (4)用肺呼吸兼用皮肤辅助呼吸的动物是       

(5)昆虫的身体分为_______、__________和___________三部分,翅膀和足都长在__________部,体表覆盖有__________,防止___________。

(6)节肢动物的特点是:身体由很多______构成;体表有________;_______和______分节。

(7)鸟类的体表被覆_______,前肢特化成___ ___,具有迅速飞翔的能力;身体内有_______辅助呼吸,体温__________。

答案

(1)蜜蜂、青蛙、(2)草鱼(3)蜜蜂、麻雀(4)青蛙

(5)头、胸、腹、胸部、外骨骼、防止体内水分散失

(6)体节、外骨骼、足、触角(7)羽毛、翼、气囊、高而恒定

题目分析:(1)具有变态发育的生物有昆虫和两栖动物,在图示所示生物中,C青蛙是两栖动物,D蜜蜂属于昆虫,两者都是变态发育。(2)蚯蚓生活在阴暗潮湿的环境中,鱼类终生生活在水中,青蛙幼体生活在水中,成体既可以生活在水中,也可以生活在阴暗潮湿的陆地上,蜜蜂和麻雀生活在陆地上。(3)昆虫和鸟类适于飞行生活(4)两栖动物用肺呼吸,兼用湿润的皮肤辅助呼吸,青蛙属于两栖动物,所以青蛙用肺呼吸兼用皮肤辅助呼吸。(5)昆虫的主要特点:1身体明显分为头、胸、腹三部分,每部分都由若干环节组成。头部由6个环节愈合而成,成体已无节的痕迹。胸部由前胸、中胸、后胸三节组成。腹部由3~12个环节组成,大多数为10~11节。2成虫有三对分节的足,分别长在三个胸节上。(少于三对或多于三对足的动物都不是昆虫,这是鉴定昆虫最明显的标志。)3大多数昆虫的成虫胸部都长着两对翅,也有一些种类的昆虫演化为只有一对翅(如蚊、蝇),还有一些种类的昆虫翅完全退化了(如蚤、虱)。4昆虫的头上长着一对分节的触角,有触觉和嗅觉作用,用来探路、寻食、辨别方向和求偶。5昆虫体内没有骨骼,成虫体表长有一层外壳,称为“外骨骼”。(6)节肢动物的特征:1体躯由一系列体节组成;2整个体躯被有一层含几丁质的外骨骼;3多数体节上生有成对的分节附肢;4体腔即为血腔,循环器官——背血管位于消化道的背面,以大动脉开口于头腔内,开管式血液循环;5中枢神经系统由一系列成对的神经节组成,脑位于头内消化道的背面,腹神经索位于消化道的腹面。(7)鸟类的主要特点:①身体呈仿锤形。②全身覆盖羽毛,绒羽生在正羽下面,保持体温恒定,体温较高达42℃。③骨骼中空,减轻体重。④没有牙齿,有角质喙。⑤大肠极短,无膀胱,粪便随时从泄殖腔排出。⑥有气囊和肺,双重呼吸。绝大多数鸟类有筑巢、孵卵和育雏的行为。

单项选择题
阅读理解

.

Tell the truth or just lie?

You’re busy filling out the application form for a position you really need; let’s assume you once actually completed a couple of years of college work or even that you completed your degree. Isn’t it tempting to lie just a little, to claim on the form that your diploma represents a Harvard degree? Or that you finished an extra couple of years back at State University?

More and more people are turning to final trick like this to land their job or to move ahead in their careers, for personnel officers, like most Americans, value degrees from famous schools. A job applicant may have a good education anyway, but he or she assumes that chances of being hired are better with a diploma from a well-known university. Registrars at most well known colleges say they deal with deceitful like these at the rate of about one per week.

Personnel officers do check up degrees listed on application forms, then. If it turns out that an applicant is lying, most colleges are reluctant to accuse the applicant directly. One Ivy League school calls them “impostors(骗子)”;Another refers to them as “special cases” one well-known West Coast school, in perhaps the most delicate phrase of all, says that these claims are made by ”no such people.”

To avoid total lies, some job-seekers claim that they “attended” or “were associated with” a college or university. After carefully checking, a personal officer may discover that “attending” means being dismissed after one semester. It may be that “being associated with” a college means that the job seeker visited his younger brother for a football weekend. One school that keeps records of false claim says that the practice dates back at least to the turn of the century-that’s when they began keeping records, anyhow.

If you don’t want to lie or even stretch the truth, there are companies that will sell you a phony(假的) diploma. One company, with offices in New York and on the West Coast, will put your name on a diploma from any number of nonexistent colleges. The price begins at around twenty dollars for a diploma from “Smoot State University.” The prices increase rapidly for a degree from the “University of Purdue.” As there is no Smoot State and the real school in Indiana is properly called Purdue University, the prices seem rather high for one sheet of paper.

72.The main idea of this passage is that______.

A. employers are checking more closely on applicants now

B. lying about college degrees has become a widespread problem

C. college degrees can now be purchased easily

D. employers are no longer interested in college degrees

73.According to the passage, “special cases” refers to cases where______.

A. students attend a school only part-time

B. students never attended a school they listed on their application

C. students buy false degrees from commercial firms

D. students attended a famous school

74.We can infer from the passage that______.

A. performance is a better judge of ability than a college degree

B. experience is the best teacher

C. past work histories influence personnel officers more than degrees do

D. a degree from a famous school enables an applicant to gain advantage over others in job competition

75.This passage implies that______.

A. buying a false degree is not normal

B. personnel officers only consider applicants from famous schools

C. most people lie on applications because they were dismissed from school

D. society should be greatly responsible for lying on applications