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sat閱讀理解的高頻詞匯有哪些

　　在sat考試閱讀理解部分的備考，是考生一定要準(zhǔn)備好一些高頻詞匯的。百分網(wǎng)小編為大家精心準(zhǔn)備了sat考試閱讀理解部分的一些高頻詞匯，歡迎大家前來閱讀。

sat閱讀理解的高頻詞匯

　　sat考試閱讀理解的高頻詞匯：G開頭

　　galaxy 星系，銀河

　　gas scrubber 氣體洗滌器

　　gas syringe 氣體注射器

　　gas 氣體

　　gaseous state 氣態(tài)

　　gas-liquid chromatography 氣液色譜法

　　gasoline 汽油

　　gemstone 寶石

　　general formula

　　generate electricity 發(fā)電

　　gentle heating 微熱

　　geodesic domes 地圓學(xué)說

　　geometric (or cis-trans) isomer 幾何異構(gòu)體(順式-反式)

　　geothermal: hot rocks 地?zé)幔簾釒r

　　germicide 殺菌劑

　　glass delivery tube 玻璃導(dǎo)管

　　glucose 葡萄糖

　　good conductivity of heat and electricity 良好的導(dǎo)電導(dǎo)熱性

　　granule 顆粒

　　graph extrapolated backwards to starting time 反推到開始時間的曲線圖

　　graphite 石墨

　　gravity 重力

　　greenhouse effect 溫室效應(yīng)

　　grooved cork 具孔塞

　　ground glass cone-and-socket joint 磨口玻璃錐管接合處

　　sat考試閱讀理解的高頻詞匯：H開頭

　　hydrolysis 水解

　　hydroxide 氫氧化物

　　hydroxy-(= -OH) 羥基

　　hyphen 連字符

　　hypothesis 假設(shè)

　　high-performance liquid chromatography 高效液相色譜法

　　homogeneous catalysis 均相催化(催化劑與反應(yīng)物在同相中反應(yīng))

　　homologous series 同系物

　　homolytic fission 均裂(共價鍵斷裂產(chǎn)生兩個自由基)

　　horizontal axis 橫坐標(biāo)

　　horny 角狀的，粗硬的

　　hydrated halide ion 水合鹵素離子

　　hydrated ion 水合離子(與水結(jié)合而成，如H3O+)

　　hydrocarbon 碳氫化合物，烴

　　hydrocarbons: alkenes 碳氫化合物：烯烴

　　hydrocarbons: alknes 碳氫化合物：烴

　　hydrocarbons: fuels 碳氫化合物：燃料

　　hydrochloric acid 鹽酸

　　hydroelectricity 水電，水力發(fā)電

　　hydrofluoric acid 氫氟酸

　　hydrogen bond 氫鍵(氫鍵是由于與電負(fù)性極強的元素如氟、氧等相結(jié)合的'氫原子和另一分子中電負(fù)性極強的原子間所產(chǎn)生的引力而形成)

　　hydrogen peroxide 過氧化氫

　　hydrogencarbonate 碳酸氫鹽

　　sat考試閱讀理解的高頻詞匯：A開頭

　　abiotic (無生命的)

　　Nonliving materials in the environment—such as elements, sunlight, and soil—that influence and are influenced by living (biotic) entities on the planet.

　　acetylcholine(乙酰膽素): 運動神經(jīng)釋于一種化學(xué)物質(zhì),與其接受體結(jié)合后，能產(chǎn)生足夠的電位變化來引起肌肉運動

　　A neurotransmitter released from the axons of nerve cells to excite an action potential or trigger a muscle to contract.

　　active immunity(主動免疫)

　　Protective immunity to a disease in which the individual produces antibodies as a result of previous exposures to the antigen.

　　acids(酸)

　　Hydrogen ion (H+) donors. Acids are very important in the chemical reactions of life because they are highly reactive. Acids have pH values below 7. They are the opposite of bases.

　　actin (肌動蛋白)

　　Protein filaments that, along with myosin, allow muscles to contract.

　　active site(酶活性部分)

　　The part of an enzyme that interacts with, or binds to, a substrate.

　　active transport(主動運輸)

　　The movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration. Because active transport involves moving the molecule against the natural flow of the concentration gradient, the process requires energy.

　　adaptive radiation(適應(yīng)輻射) ：同起源生物類群演化成多種不同類型的后代，以適應(yīng)不同環(huán)境的現(xiàn)象

　　The evolutionary process by which ancestral forms of an organism are diversified through adaptation to new environments.

　　adenosine triphosphate (ATP/腺苷三磷酸)

　　The energy storage molecule for the cell. ATP consists of an adenosine molecule bonded to three phosphate groups. Each phosphate bond contains energy; by breaking these bonds, the cell can get the energy it needs for chemical reactions. Cells build ATP during cell respiration, using the raw material of glucose.

　　adrenal glands(腎上腺)

　　Two glands, the adrenal cortex(腎上腺皮質(zhì)，分泌可的松【cortisone】，醛固酮【aldosteron，用于調(diào)節(jié)滲透，控制鈉，鉀離子的重新吸收】等激素) and adrenal medulla(腎上腺髓質(zhì)，分泌腎上腺素【adrenaline】), located on the kidney.

　　aerobic respiration(有氧呼吸)

　　A form of cell respiration requiring oxygen (as opposed to anaerobic respiration, which does not need oxygen). Aerobic respiration is much more efficient than anaerobic respiration; it produces 36 ATP for every molecule of glucose. Aerobic respiration proceeds in three stages: glycolysis(糖酵解), the Krebs cycle(三羧酸循環(huán)), and the electron transport chain(電子傳遞鏈).

　　allantois(尿囊): 胚胎時期積存排泄廢物、氣體交換的場所

　　The extraembryonic membrane of birds, reptiles, and mammals that serves as an area of gaseous exchange and as a site for the storage of noxious excretion products.

　　allele(等位基因):位于一對同源染色體的相同位置上控制某一性狀的不同形態(tài)的基因

　　A specific form or possible version of a gene having multiple versions. Alleles may be dominant or recessive.

　　allelic frequency(等位基因頻率)

　　The frequency with which a particular allele for a certain characteristic appears among all possible alleles for that characteristic in a population.

　　alternation of generations(世代交替)：一種生物(種)，生殖方式不同的世代，周期的、或不規(guī)則的交替(苔蘚植物和蕨類植物具有此特征)

　　The fluctuation between the diploid (sporophyte) and haploid (gametophyte) life stages that occur in plants.

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