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21. Experiments of this kind in both the . and Europe well before the Second World War. A. have conducted B. have been conducted C. had conducted D. had been conducted 22. Barbara Jones offers to her fans is honesty and happiness. A. Which B. What C. That D. Whom 23. Tom in the library every night over the last three months. A. works B. worked C. have been working D . had been working 24. —I don‘t really like James. Why did you invite him? —Don‘t worry. He e. He said he wasn‘t certain what his plans were. A. must not B. need not C. would not D. might not 25. It‘s important for the figures regularly. 19 A. to be updated B. to have been updated C. to update D. to have updated 26. Mary was much kinder to Jack than she was to the others, , of course, made all the others upset. A. who B. which C. what D. that 27. —That must have been a long trip. —Yeah, it us a whole week to get there. A. takes B. has taken C. took D. was taking 28. —Where are the children? The dinner‘s going to be pletely ruined. —I wish they always late. A. weren‘t B. hadn‘t been C. wouldn‘t be D. wouldn‘t have been 29. volleyball is her main focus, she‘s also great at basketball. A. Since B. Once C. Unless D. While 30. Maybe if I science, and not literature then, I would be able to give you more help. A. studied B. would study C. had studied D. was studying 31. The shocking news made me realize terrible problems we would face. A. what B. how C. that D. why 32. —Bob has gone to California. —Oh, can you tell me when he ? A. has left B. left C. is leaving D. would leave 33. Sit down, Emma. You will only make yourself more tired, on your feet. A. to keep B. keeping C. having kept D. to have kept 34. The employment rate has continued to rise in big cities thanks to the efforts of the local governments to increase . A. them B. those C. it D. that 35. With new technology, pictures of underwater valleys can be taken color. A. by B. for C. with D. in 第二節(jié) 完形填空(共 20 小題;每小題 分,共 30 分) 閱讀下面短文,掌握其大意,從每題所給的 A、 B、 C、 D 四個(gè)選項(xiàng)中,選出最佳選項(xiàng), 20 并在答題卡上將該項(xiàng)涂黑。 13. What makes shoppers tired? A. Queuing for electricallydriven cars. B. Looking for what they want to buy. C. Carrying shopping around. 14. What is the problem for building moving walkways in the store? A. The space. B. The redesign. C. The technology. 15. Where will the puter system send the things shoppers buy? A. To the exit. B. To the shelf. C . To the shoppers‘ homes. 第三節(jié) (共 5 小題;每小題 分,共 分) 18 聽下面一段對話,完成第 16 至第 20 五道小題,每小題僅填寫 一個(gè)詞 . . . ,聽對話前,你將有 20 秒鐘的時(shí)間閱讀試題,聽完后你將 有 60 秒鐘的作答時(shí)間。 聽第 6 段材料,回答第 6 至 7 題。每段對話或獨(dú)白后有幾道小題,從每題所給的 A、 B、 C 三個(gè)選項(xiàng)中選出最佳選項(xiàng)。聽完每 段對話后,你將有 10 秒鐘的時(shí)間來回答有關(guān)小題和閱讀下一小題??忌鷦?wù)必將答案答在答題卡上,在試卷上作答無效。 (2 分 ) 21s in 3 0 2 mm g S Q m v? ? ? ( 1 分) ∴ 2 1 2 0 . 42 s in 3 0 2 1 0 1 . 1 5 2 . 7 4 ( / )2 0 . 2m Qv g S m sm ?? ? ? ? ? ? ? ? ? ( 1 分) 33. (14 分 ) (1)勢能最小處動能最大 (1 分 ) 由圖線 II 得 ( )x cm? (2 分 ) (在 ~ 間均視為正確 ) (2)由 圖 讀得釋放處勢能 ? ,此即 B 的總 能 量。 1 1 . 5 2 . 3 5Ltsaa ?? ? ?? ? ? ( 1 分) ( 2)另 解 : 設(shè) 力 F 作用 的最短 時(shí)間為 t,相應(yīng)的位移為 s,物體到達(dá) B 處速度恰為 0,由動能定理 [ c os 37 ( si n 37 ) ] ( ) 0F m g F s m g L s??? ? ? ? ? ? ? ( 2 分) ∴ 0 . 5 2 1 0 2 0 6 . 0 6 ( )( c o s 3 7 s in 3 7 ) 3 0 ( 0 . 8 0 . 5 0 . 6 )m g LsmF ? ? ? ? ?? ? ?? ? ? ? ? ? ( 1 分) 由牛頓定律 c os 37 ( si n 37 )F mg F ma?? ? ? ? ? ( 1 分) ∴ 2( c o s 3 7 s in 3 7 ) 3 0 ( 0 . 8 0 . 5 0 . 6 ) 0 . 5 1 0 1 1 . 5 ( / )2Fa g m sm ? ?? ? ? ? ? ?? ? ? ? ? ? ( 1分) ∵ 212s at? ( 1 分) 2 2 6 .0 6 1 .0 3 ( )1 1 .5stsa ?? ? ? ( 1 分) 32.( 14 分) ( 1)下滑 過程中安培力的功即為在電阻上產(chǎn)生的焦耳熱 ,由于 3Rr? , 因此 3 ( )RrQ Q J?? ( 1 分) ∴ = ( )RrW Q Q Q J? ? ?安 ( 2 分) ( 2) 金屬棒下滑時(shí)受重力和安培力 22= BLF BIL vRr? ?安 ( 1 分) 14 由牛頓第二定律 22s in 3 0 BLm g v m aRr? ? ?? ( 3 分) ∴ 2 2 2 2 21 0 . 8 0 . 7 5 2s in 3 0 1 0 3 . 2 ( / )( ) 2 0 . 2 ( 1 . 5 0 . 5 )BLa g v m sm R r ??? ? ? ? ? ? ?? ? ? ( 2 分) (3)此解法正確 。 2 .339。t 秒到達(dá) B處,速度恰為 0,由牛頓定律 c os 37 ( si n 37 )F m g F a m a?? ? ? ? ? (1 分 ) 13 ∴2( c o s 3 7 s in 3 7 ) 3 0 ( 0 . 8 0 . 5 0 . 6 ) 0 . 5 1 0 1 1 . 5 ( / )2Fa g m sm ? ?? ? ? ? ? ?? ? ? ? ? ?(1 分 ) 239。 每小題有二個(gè)或三個(gè)正確選項(xiàng) , 全選對的,得 4 分;選對但不全的,得 2 分;有選錯或不答的,得 0 分 。取 /g m s? ) (1)B在運(yùn)動過程中動能最大的位置; (2)運(yùn)動過程中 B的最大速度和最大位移 。 10 33. (14 分 )如圖 (a),磁鐵 A、 B的同名磁極相對放置,置于水平 氣墊導(dǎo)軌上。 ,導(dǎo)軌上端 ab接一阻值 R=, 磁感應(yīng)強(qiáng)度 B=上 。 (已知 cos37 ?? , sin37 ?? 。緩慢加熱 A中氣體, 停止加熱達(dá)到穩(wěn)定后, A中氣體壓強(qiáng)為原來的 。 (3)補(bǔ)全實(shí)驗(yàn)步驟: ① 按電路圖連接電路, ; ② 閉合電鍵 S,移動滑動觸頭至某一位置,記錄 1G , 2G 的讀數(shù) 1I , 2I ; ③ ; ④ 以 2I 為縱坐標(biāo), 1I 為橫坐標(biāo),作出相應(yīng)圖線,如圖所示 。測量實(shí)際電流表 1G 內(nèi)阻 1r 的電路如圖所示 。 改正其中的錯誤: (2)若油酸酒精溶液體 積濃度為 % ,一滴溶液的體積為 10 ml?? ,其形成的油膜面積為 240cm ,則估測出油酸分子的直徑為 m。答案寫在題中橫線上的空白處或括號內(nèi)。 當(dāng) ? 時(shí), M點(diǎn)的位移為 cm, N點(diǎn)的位移為 cm。 在此運(yùn)動過程中,衛(wèi)星所受萬有引力大小將 (填 “ 減小 ” 或 “ 增大 ” );其動能將 (填 “ 減小 ” 或 “ 增大 ” )。 這是光的 (填 “ 干涉 ” 、 “ 衍射 ” 或“ 直線傳播 ” )現(xiàn)象,這一實(shí)驗(yàn)支持了光的 (填 “ 波動說 、 “ 微粒說 或 “ 光子說 )。答案寫在題中橫線上的空白處 或指 定位置。 2.第 3 3 33題要求寫出必要的文字說明、方程式和重