第二節(jié) 聽(tīng)取信息(共5小題;每小題1分,滿分5分)
聽(tīng)下面一段對(duì)話,請(qǐng)根據(jù)題目要求,從所聽(tīng)到的內(nèi)容中獲取必要的信息,填入答題卡標(biāo)號(hào)為16-20的空格中。聽(tīng)錄音前,你將有10秒鐘的閱題時(shí)間。錄音讀兩遍,你將有60秒鐘的作答時(shí)間。
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Letters |
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The mail |
Probably a lot of 16 |
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The return name and address of the personal letter |
Pete Waters, 17 , Macon County, Georgia |
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The relationship between Pete Waters and Grandpa |
18 in college |
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The purpose of the letter |
To invite Grandpa to attend a 19 for making a 50-year 20 |
第一節(jié) 聽(tīng)力理解(5段共15小題;每小題2分,滿分30分)
每段播放兩遍。各段后有幾個(gè)小題,各段播放前每小題有5秒鐘的閱題時(shí)間。請(qǐng)根據(jù)各段播放內(nèi)容及其相關(guān)小題,在5秒鐘內(nèi)從題中所給的A、B、C項(xiàng)中,選出最佳選項(xiàng),并在答題卡上將該項(xiàng)涂黑。
聽(tīng)第一段對(duì)話,回答第1-3題。
1.What is the man’s original opinion of the Ice Age people?
A.They were surprisingly advanced.
B.They were primary cave dwellers.
C.They were inventors of art and music.
2.How did the early Ice Age people keep warm?
A.They put heated stones on the roof.
B.They faced their houses towards the south.
C.They covered their houses with animal skins.
3.Why does the man want to read the article about the Ice Age people?
A.To impress his teacher.
B.To write his homework.
C.To fulfill his curiosity.
聽(tīng)第二段獨(dú)白,回答第4-6題。
4.What does the speaker think the biggest problem is?
A.Packaging.
B.People spitting.
C.People not cleaning up after their dogs.
5.Why is spitting on the street bad?
A.Because it is dirty and can spread illnesses.
B.Because it is dirty and makes the street look bad.
C.Because it is not nice for others to see someone spitting.
6.What can you help do in your area if you walk or ride a bike more often?
A.Reduce using gases.
B.Cut down the pollution.
C.Improve the traffic.
聽(tīng)第三段對(duì)話,回答第7-9題。
7.Where did the woman find the information about the job?
A.From an advertisement.
B.From her teacher.
C.In a newspaper.
8.When is the woman expected to work Monday through Friday?
A.4:00 p.m.to 6:00 p.m.
B.4:30 p.m.to 6:30 p.m.
C.6:00 p.m.to 10:00 p.m.
9.What can we learn from the conversation?
A.The woman studied Spanish in high school.
B.The cassettes in the yellow boxes are French lessons.
C.The man will contact the woman in two weeks.
聽(tīng)第四段對(duì)話,回答第10-12題。
10.What are the two speakers talking about?
A.The National Day holiday.
B.A vacation plan.
C.A reservation in some cities.
11.How does the woman feel about Xi’an?
A.Beautiful but not big enough.
B.Worth going but too far away.
C.Beautiful but there are too many people.
12.What advice does the woman give in the end?
A.Going to a hot spring resort.
B.Reserving a room as soon as possible.
C.Going to a big city like Shanghai.
聽(tīng)第五段獨(dú)白,回答第13-15題。
13.What should teens learn according to the talk?
A.How to manage some financial matters well.
B.How to be a financial manager.
C.How to help to support the family.
14.What does it mean by Warren Buffett’s statement?
A.The young generation do not know what they are doing.
B.If people do not understand how to look after their money, there will be economic crisis.
C.The new generation do not know they are taking risks.
15.What is the talk mainly about?
A.The current economic situation has a negative influence on America.
B.Teens should learn to handle money matters on their own.
C.Teens should be taught to be financially independent.
36.(18分)
如圖所示,水平面上有一個(gè)傾角為θ=30°的斜劈,質(zhì)量為m。一個(gè)光滑小球,質(zhì)量也為m,用繩子懸掛起來(lái),繩子與斜面的夾角為a=30°,整個(gè)系統(tǒng)處于靜止?fàn)顟B(tài)。
(1)分別畫(huà)出小球和斜劈的受力圖;
(2)求出繩子的拉力T;
(3)若地面對(duì)斜劈的最大靜摩擦力
等于地面對(duì)斜劈的支持力的k倍,為了使整個(gè)系
統(tǒng)始終保持靜止,k值必須滿足什么條件?
35.(18分)
以速度為
=10m/s勻速行駛的汽車在第2s末關(guān)閉發(fā)動(dòng)機(jī),以后作勻減速直線運(yùn)動(dòng),第3s內(nèi)的平均速度是9m/s,試求:
(1)汽車作減速直線運(yùn)動(dòng)的加速度a;
(2)汽車在10s內(nèi)的位移S。
34.(18分)
(1)(8分)在用打點(diǎn)計(jì)時(shí)器研究小車的勻變速直線運(yùn)動(dòng)的實(shí)驗(yàn)中:
① 某學(xué)生將打點(diǎn)計(jì)時(shí)器接到頻率為50 Hz的交流電源上,實(shí)驗(yàn)時(shí)得到一條紙帶。他在紙帶上便于測(cè)量的地方開(kāi)始,每隔4個(gè)打點(diǎn)標(biāo)定一個(gè)計(jì)數(shù)點(diǎn),共標(biāo)出了A、B、C、D、E五個(gè)連續(xù)的計(jì)數(shù)點(diǎn)(相鄰兩個(gè)計(jì)數(shù)點(diǎn)間還有4個(gè)點(diǎn)沒(méi)有標(biāo)出)。測(cè)量時(shí)發(fā)現(xiàn)B點(diǎn)已模糊不清,于是他測(cè)得AC長(zhǎng)為14.56 cm,CD長(zhǎng)為11.15 cm,DE長(zhǎng)為13.73 cm。則打下C點(diǎn)時(shí)小車的瞬時(shí)速度大小vC = m/s,小車運(yùn)動(dòng)的加速度大小a = m/s2 。(均保留3位有效數(shù)字)
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② 如果在實(shí)驗(yàn)過(guò)程中,交流電源的頻率變?yōu)?2Hz,而實(shí)驗(yàn)者并不知道,仍然按50Hz來(lái)進(jìn)行計(jì)算,則其得出的加速度a的測(cè)量值與真實(shí)值相比,應(yīng)該 。(選填:“偏大”、“偏小”或“不變”)
③ 實(shí)驗(yàn)中如果是通過(guò)懸掛鉤碼(借助滑輪和細(xì)線)來(lái)牽拉,使實(shí)驗(yàn)小車做勻加速直線運(yùn)動(dòng)的,則是否需要記錄所懸掛鉤碼的質(zhì)量或重力? (選填:“需要”或“不需要”)
(2)(10分)如下圖(a)所示,用鐵架臺(tái)、彈簧和多個(gè)已知質(zhì)量且質(zhì)量相等的鉤碼,探究在彈性限度內(nèi)彈簧彈力與彈簧伸長(zhǎng)長(zhǎng)度的關(guān)系實(shí)驗(yàn).
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① 為完成實(shí)驗(yàn),還需要的實(shí)驗(yàn)器材有: ;
② 實(shí)驗(yàn)中需要測(cè)量(記錄)的物理量有: ;
③ 圖(b)是彈簧所受彈力F與彈簧伸長(zhǎng)長(zhǎng)度x的F-x圖線,由此可求出彈
簧的勁度系數(shù)為 N/m.圖線不過(guò)原點(diǎn)的原因是由于 .
33.(18分)
廣東省有著豐富的海洋資源。海水提取食鹽和Br2以后的鹽鹵可以用來(lái)制備純凈的MgCl2或MgO。鹽鹵中含有Mg2+、Cl-,還含有少量Na+、Fe2+、Fe3+、和CO(NH2)2等。制備流程如下圖:
![]()
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(1)濾渣的成分是____________(填化學(xué)式);濾液Ⅱ中所含主要的雜質(zhì)離子是 (寫(xiě)離子符號(hào))。
(2)用NaClO除去尿素CO(NH2)2時(shí),生成物除鹽外,都是能參與大氣循環(huán)的物質(zhì),則該反應(yīng)的化學(xué)方程式為_(kāi)_________________________________;加入NaClO還能起 到的作用是________________________________________。
(3)直接將MgCl2•6H2O加強(qiáng)熱能得到MgO,反應(yīng)的化學(xué)方程式是__________________。
用MgCl2·6H2O制備無(wú)水MgCl2過(guò)程中,所需要的化學(xué)試劑是_____________。
(4)海水制溴過(guò)程中吸收潮濕空氣中的Br2 是利用SO2 氣體,SO2 吸收Br2的離子方程式是 。SO2 氣體可來(lái)源于硫酸工業(yè)的尾氣,同時(shí),SO2 尾氣也可用氨水吸收,作為制備化肥的原料,SO2 氣體用氨水吸收得到的產(chǎn)物可能是_____________________________。
32.(14分)
有一瓶澄清的溶液,其中可能含有H+、NH4+、Mg2+、Ba2+、Al3+、I-、NO3-、CO
、SO
、AlO
,取該溶液進(jìn)行以下實(shí)驗(yàn):
(1)取pH試紙檢驗(yàn),溶液呈強(qiáng)酸性,可以排除 的存在。
(2)取出部分溶液,加入少量CCl4及數(shù)滴新制氯水,經(jīng)振蕩后CCl4呈紫紅色,可以排除 的存在。
(3)另取出部分溶液逐漸加入NaOH溶液,使溶液從酸性逐漸變?yōu)閴A性,反應(yīng)過(guò)程中均無(wú)沉淀產(chǎn)生,則又可排除 的存在。
(4)取出部分上述堿性溶液加Na2CO3溶液后,有白色沉淀生成,證明有 的存在,又可以排除 的存在。
(5)根據(jù)上述實(shí)驗(yàn)事實(shí)可以確定,該溶液中肯定存在的離子是 ,還不能確定是否存在的離子是 。
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