電大開放英語3形成性考核冊作業(yè)參考答案(完整版)-文庫吧
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【正文】 教育體制及學(xué)生生活 2）繼續(xù)教育和學(xué)習(xí)方式相關(guān)內(nèi)容 3）城鎮(zhèn)及其發(fā)展相關(guān)內(nèi)容 4）表達(dá)因果關(guān)系 5）表達(dá)數(shù)量 印象最深的 Cultural Notes：（可從以下幾項(xiàng)中選填） 1）英國的學(xué)士學(xué)位 Degrees in the UK 2）工學(xué)交替制課程 Sandwich Courses 3）倫敦城 The City 4）陪審團(tuán)制度 the Jury System 5) 手勢 Gestures 階段性學(xué)習(xí)體會(huì)：（略）（一定要自己 寫） 作業(yè) 3 一、交際用語 第一部分：交際用語 一、 1～ 5 ACABA 第二部分：英語知識運(yùn)用 二、選擇填空 6～ 10 DABBB 11～ 15 ABCBB 三、完型填空 16～ 20 BD（將 D 選項(xiàng)中的 on 改為 in） CCC 21～ 25 DADCB 第三部分：閱讀理解 四、 26～ 30 ACBBC 31～ 35 DDBDC 五、 36～ 40 F T NG F T 第四部分：書面表達(dá) 評分原則 (1) 本題總分為 20 分 , 按 5 個(gè)檔 次給分。 (2) 評分時(shí) ,先根據(jù)文章的內(nèi)容和語言初步確定其檔次 ,然后以該檔次的要求來衡量、確定或調(diào)整檔次 , 最后給分。 (3) 字?jǐn)?shù)少于 80 的 (不包括所給句子和標(biāo)點(diǎn)符號 )從總分中減去 1 分。 (4) 評分時(shí)應(yīng)注意的主要內(nèi)容為 :內(nèi)容要點(diǎn)、句型變化、運(yùn)用詞匯和語法結(jié)構(gòu)的準(zhǔn)確性。 (5) 評分時(shí) , 如拼寫錯(cuò)誤較多 , 書寫較差 , 以至影響交際 , 將分?jǐn)?shù)降低一個(gè)檔次。 附范文 (本篇僅供參考，請勿全篇抄襲，切記 ) My TV University Life I am studying at Jingchang Radio and TV University. This university offers variety of open and distance courses for adult learners. The students can use puters to learn the courses at home or in the offices. However, they also can go to the classroom buildings to have facetoface lessons. I e here to study once a week. In fact , the knowledge in every subject is hard for me, because I don’t have so much time in teaching myself in the spare time . I have to work on the weekdays. Thanks to the teaching methods of the TVU, it makes a little easier for me to understand the contents of the subjects. The coaching teachers are always caring for us in studying here. It is really good for busy adults. It will be a very interesting and exciting learning experience to study at this university. 請您刪除一下內(nèi)容， O(∩ _∩ )O 謝謝?。?！ 2021 年中央電大期末復(fù)習(xí)考試小抄大全，電大期末考試必備小抄，電大考試必過小抄Acetylcholine is a neurotransmitter released from nerve endings (terminals) in both the peripheral and the central nervous systems. It is synthesized within the nerve terminal from choline, taken up from the tissue fluid into the nerve ending by a specialized transport mechanism. The enzyme necessary for this synthesis is formed in the nerve cell body and passes down the axon to its end, carried in the axoplasmic flow, the slow movement of intracellular substance (cytoplasm). Acetylcholine is stored in the nerve terminal, sequestered in small vesicles awaiting release. When a nerve action potential reaches and invades the nerve terminal, a shower of acetylcholine vesicles is released into the junction (synapse) between the nerve terminal and the ‘effector’ cell which the nerve activates. This may be another nerve cell or a muscle or gland cell. Thus electrical signals are converted to chemical signals, allowing messages to be passed between nerve cells or between nerve cells and nonnerve cells. This process is termed ‘chemical neurotransmission’ and was first demonstrated, for nerves to the heart, by the German pharmacologist Loewi in 1921. Chemical transmission involving acetylcholine is known as ‘cholinergic’. Acetylcholine acts as a transmitter between motor nerves and the fibres of skeletal muscle at all neuromuscular junctions. At this type of synapse, the nerve terminal is closely apposed to the cell membrane of a muscle fibre at the socalled motor end plate. On release, acetylcholine acts almost instantly, to cause a sequence of chemical and physical events (starting with depolarization of the motor endplate) which cause contraction of the muscle fibre. This is exactly what is required for voluntary muscles in which a rapid response to a mand is required. The action of acetylcholine is terminated rapidly, in around 10 milliseconds。 an enzyme (cholinesterase) breaks the transmitter down into choline and an acetate ion. The choline is then available for reuptake into the nerve terminal. These same principles apply to cholinergic transmission at sites other than neuromuscular junctions, although the structure of the synapses differ
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