27. Susan enjoys walking at times, but ______ she rides back home.
A. mostly B. almost C. nearly D. most
26.( )-Would you like another cup of tea?
- _______? Thanks.
A. Do I B. Will I C. My I D. Am I
24.I have ____ a raincoat ____ an umbrella. That’s why I have to wait until the rain stops.
A. both; and B. either; or C. neither; nor D. not only; but also
( ) 25. Half of the class ____ done most of the work. The left ____ rather difficult.
A. has; is B. have; is C. have; are D. has; are
23.This pair of jeans looks nice _____ Sandy and she looks nice _____ blue.
A. in; on B. on; in C. for; on D. to; in
22.-My pencil is different from _________-.
-But ______ is the same as mine.
A. Tom; yours B. Tom; your C. Tom’s; your D. Tom’s; yours
21. My son is a musical boy. He plays ________ piano very well.
A. a B. an C. the D. \
A) 聽錄音, 選出與所聽內(nèi)容相符的圖畫。(讀一遍)
B) 聽5小段對(duì)話,每段對(duì)話后有一個(gè)問題,選出最佳答案。(讀兩遍)
( ) 6. A. They’re on the train. B. They’re in Beijing.
C. They’re on the plane.
( ) 7. A. Five. B. Thirty-five. C. Forty.
( ) 8. A. He would like to drink neither coffee nor water.
B. He would like to drink either coffee or tea.
C. He would like to drink water.
( ) 9. A. Australia. B. Japan C. China.
( ) 10. A .The desk. B. The bag. C. The library book.
C) 聽對(duì)話或獨(dú)白,每段對(duì)話或獨(dú)白后有幾個(gè)小題,選出最佳答案。
(讀兩遍)
聽第1段材料,回答11~12題。
( ) 11. When is Jack’s father birthday?
A. This Sunday. B. This Thursday. C. This Saturday.
( ) 12. What are they going to do for Jack’s father’s birthday?
A. They’re going to have a party. B. They’re going to have a picnic.
C. They’re going to have a big dinner.
聽第2段材料,回答13~15題。
( ) 13. Who is answering the phone?
A. Mary Smith B. Mr Menon. C. Mrs Menon.
( ) 14. What’s the woman’s telephone number?
A. 853-2736. B. 852-1736. C. 824-5736.
( ) 15. What should Mrs Menon do when she comes back?
A. Go to see Mary. B. Phone Mary. C. Take a message.
聽第3段材料,回答16~20題。
( ) 16.Why does Li Lei have to get up early every morning?.
A. Because he wants to catch the early bus.
B. Because he wants to be the first to get to school.
C. Because his home is far from school.
( ) 17.How does Li lei go to school every day?
A. He walks to school. B. He runs to school. C. He rides a bike to school.
( ) 18.Li Lei’s family spends much money ______.
A. on his mother’s medicine B. on his school things C. on a new bike
( ) 19.Li Lei ran ___ in the boys’ 1,500 meters in his school.
A .fast B. faster C .fastest
( ) 20.What makes Li Lei become stronger and stronger?
A. Growing up. B. Keeping running to school. C. His father’s care.
筆 試 部 分 (90分)
下課后,及時(shí)記錄學(xué)生活動(dòng)基本情況、教學(xué)效果,以及沒有估計(jì)到的突發(fā)情況和采取的應(yīng)急措施,并構(gòu)想改進(jìn)方法.也可找個(gè)別學(xué)生了解情況,使教學(xué)效果的鑒別接近實(shí)際。
我們已經(jīng)復(fù)習(xí)了牛頓定律、動(dòng)量定理和動(dòng)量守恒、動(dòng)能定理和機(jī)械能守恒。它們分別反映了力的瞬時(shí)作用效應(yīng)、力的時(shí)間積累效應(yīng)和力的空間積累效應(yīng)。解決力學(xué)問題離不開這三種解題思路。在比較復(fù)雜的題目中,這三種手段往往是交替使用的。
3.碰撞中應(yīng)重點(diǎn)掌握以下內(nèi)容:
(1)一般的碰撞可以分成三種類型,即彈性碰撞;完全非彈性碰撞;非彈性碰撞。
(2)彈性碰撞結(jié)束后,由于遵守動(dòng)量守恒和動(dòng)能守恒,所以通過計(jì)算可求出碰撞以后的結(jié)果.
(3)完全非彈性碰撞可求出碰后的共同速度,物體發(fā)生相互作用時(shí),當(dāng)在某一時(shí)刻,物體的瞬時(shí)速度瞬時(shí)相等時(shí),可用完全非彈性碰撞的模式求出瞬時(shí)相等的共同速度。
(4)實(shí)際中的碰撞大多屬于非彈性碰撞,界于彈性碰撞和完全非彈性碰撞之間,碰后情況由物體的彈性性質(zhì)決定。
(5)碰后情況定性分析,應(yīng)滿足三個(gè)條件:①碰撞前后系統(tǒng)總動(dòng)量守恒;②碰撞前后遵守總能量守恒,例如兩小球碰后由于有光能、內(nèi)能、聲能的產(chǎn)生,總動(dòng)能應(yīng)該減。虎叟鲎策^程應(yīng)符合實(shí)際情況,例如兩球碰撞后的左右位置不能調(diào)換。
2.動(dòng)量守恒定律中應(yīng)重點(diǎn)掌握以下內(nèi)容:
(1)動(dòng)量守恒定律針對(duì)一個(gè)合外力為零的系統(tǒng),使用時(shí)應(yīng)在物理過程中找一個(gè)合外力為零的系數(shù)及有關(guān)狀態(tài)列出方程。
(2)使用動(dòng)量守恒定律解題一般可以規(guī)定正方向,引入正負(fù)號(hào),把矢量運(yùn)算轉(zhuǎn)化為代數(shù)運(yùn)算。
(3)解同一道題有時(shí)可以選若干個(gè)系統(tǒng)和若干個(gè)相關(guān)的狀態(tài),注意系統(tǒng)與系統(tǒng)、狀態(tài)與狀態(tài)之間的聯(lián)系。
(4)認(rèn)真細(xì)致地搞清物理圖景,摸清物理過程的發(fā)展和演變規(guī)律,針對(duì)不同的發(fā)展變化階段,適用相關(guān)的規(guī)律列出方程。
(5)解決較復(fù)雜的習(xí)題,需要?jiǎng)恿渴睾愣珊颓昂笙嚓P(guān)的物理規(guī)律的綜合應(yīng)用,使用時(shí)要注意規(guī)律間的聯(lián)系和使用條件方法上的區(qū)別。
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