0  427393  427401  427407  427411  427417  427419  427423  427429  427431  427437  427443  427447  427449  427453  427459  427461  427467  427471  427473  427477  427479  427483  427485  427487  427488  427489  427491  427492  427493  427495  427497  427501  427503  427507  427509  427513  427519  427521  427527  427531  427533  427537  427543  427549  427551  427557  427561  427563  427569  427573  427579  427587  447090 

24.I’ve promised to keep it secret so I can’t really tell you anything     what you know already.

  A.for    B.a(chǎn)bout    C.of   D.beyond

試題詳情

23.The Roma people originally lived in northwestern India in     is now southeastern

Parkistan.

  A.which    B.what   C.that    D.where

試題詳情

22.—Excuse me, can you spare me a few minutes?

    ?

  A.What’s on    B.What is it    C.What’s up    D.What’s more

試題詳情

第一節(jié)  單項(xiàng)填空(共15小題;每小題1分,滿(mǎn)分15分)

從A、B、C、D四個(gè)選項(xiàng)中,選出可以填人空白處的最佳選項(xiàng),并在答題卡上將該項(xiàng)涂黑。

第一節(jié)  選擇題

21.I was going to pay a visit to    Smiths when     Mr Green called me up, who I didn’t know at all.

  A.the , the    B.the , a    C.a(chǎn) , the   D.a(chǎn), a

試題詳情

第二節(jié)(共15小題;第小題1.5分,滿(mǎn)分22.5分)請(qǐng)聽(tīng)下面5段對(duì)話(huà)或獨(dú)白,選出最佳選項(xiàng)。請(qǐng)聽(tīng)第6段材料,回答第6至8題。

6.What does the woman show the man?

  A.Pictures.    B.Postcards.    C.Stamps.

7.Where did the woman get the things she shows the man?

  A.At the Summer Palace.      B.At the Forbidden City.

C.A t the Great Wall.

8.What did the woman do in China?

  A.She learned a lot of Chinese.    B.She made some great Chinese friends.

C.She learned how to cook C                                              hinese food.

請(qǐng)聽(tīng)第7段材料,回答第9至11題。

9.When does the conversation probably take place?

  A.Before the play.    B.During the play.   C.After the play.

10.Which of the following is TRUE about the play?

  A. The heroine’s name is Ann Merriweather.

B.It’s a comedy about three sisters.

C.One teacher falls in love with her colleague.

11.What can we learn from the conversation?

  A.Neither the man nor the woman has seen the play before.

B.The man bought the woman one ticket for the play.

C.The woman is not familiar with the plot of the play.

請(qǐng)聽(tīng)第8段材料,回答第12至14題。

12.What did the woman use to be?

  A.A film star.    B.A singer.    C.A tennis player.

13.How does the woman feel about New York?

  A.New York hasn’t had any changes at all.

B.Changes have taken place round the center.

C.The countryside has some differences from the downtown area.

14.Why does the woman come to New York?

  A.To star in a TV program.

B.To attend or watch the tennis games.

C.To spend a vacation.

請(qǐng)聽(tīng)第9段材料,回答第15至17題。

15.What can we know about the shirt the woman first recommends?

  A.It’s a white shirt.

B.Its size is thirty-one.

C.It costs 5.59 dollars.

16.What did the man buy in the shop yesterday?

  A.A handkerchief    B.A tie    C.A pair of socks

17.What is the man’s total bill?

  A.3.95 dollars.   B.4.50 dollars   C.4.60 dollars.

請(qǐng)聽(tīng)第10段材料,回答第18至20題。

18.What did the speaker’s friends think of his change of interest?

  A.Understandable    B.Strange.   C.Crazy.

19.Why did the speaker change his interest to underwater exploration?

  A.It is much cheaper than space travel.

B.It is much safer than space travel.

C.It is more exciting than space travel.

20.In what way does the speaker think the ocean is similar to space?

  A.They are both easy to explore.

B.They are both beautiful.

C.They are both awful.

試題詳情

  該部分分為第一、第二兩節(jié)。注意:回答聽(tīng)力部分時(shí),請(qǐng)先將答案標(biāo)在 試卷上。聽(tīng)力部分結(jié)束前,你將有兩分鐘的時(shí)間把你的答案轉(zhuǎn)涂到客觀題答題卡上。

第一節(jié)(共5小題;第小題1.5分,滿(mǎn)分7.5分)

請(qǐng)聽(tīng)下面5段對(duì)話(huà),選出最佳選項(xiàng)。

1.When will the film end?

  A.At 8:30.    B.At 9:00.    C.At 9:30.

2.What does the woman mean?

A.She made the dress herself.   B.Her mother bought the dress for her.

C.Her mother made the dress for her.

3.Where is the woman from?

  A.America    B.Australia    C.Canada

4.Where does the conversation take place?

  A.At a post office    B.At a shop.    C.At a hotel.

5.How much is the jacket?

  A.600 US dollars.    B.100 Hong Kong dollars.   C.600 Hong Kong dollars.

試題詳情

31. (12分)取甲、乙、丙、丁四支潔凈的試管,按照下表中順序依次加入有關(guān)物質(zhì)并進(jìn)行有關(guān)處理,回答下列問(wèn)題:

試管編號(hào)




淀粉溶液3mL
+
+
+
 
新鮮的小麥淀粉酶濾液2mL
+
-
+
 
35℃的水浴5分鐘
+
+
+
+
碘液1滴
+
+
-
 
斐林試劑2mL
-
-
+
 
沸水浴加熱5分鐘
-
-
+
+

 (注:“+ ”表示加入物質(zhì)或相關(guān)處理,“- ”表示不加物質(zhì)或不做處理)

(1) 用甲、乙試管做驗(yàn)證酶具有催化作用的實(shí)驗(yàn),則乙試管中還應(yīng)加入       ,乙試管內(nèi)的實(shí)驗(yàn)現(xiàn)象是          。

(2) 用丙、丁試管做驗(yàn)證酶具有專(zhuān)一性的實(shí)驗(yàn),則丁試管內(nèi)應(yīng)先后加入      (從下面的①-⑧中選擇序號(hào)填空)。

①碘液1滴    ②斐林試劑2mL  ③雙縮脲試劑2mL ④二苯胺試劑2mL  

⑤淀粉溶液3mL  ⑥蔗糖溶液3mL  ⑦小麥淀粉酶濾液2mL  ⑧清水2mL 

該實(shí)驗(yàn)的實(shí)驗(yàn)變量是                        。

該實(shí)驗(yàn)的原理是:①                               �!�

                               。

試題詳情

30. (30分)

Ⅰ.(18分)某實(shí)驗(yàn)室做了下圖所示的實(shí)驗(yàn)研究,已知小鼠體細(xì)胞的染色體數(shù)目為40條。分析回答下列問(wèn)題:

(1)與纖維母細(xì)胞相比,過(guò)程①形成的誘導(dǎo)干細(xì)胞的全能性        。

(2)過(guò)程②是       過(guò)程,其根本原因是             。

(3)要獲得Y細(xì)胞,將H1N1病毒外殼蛋白質(zhì)注射到小鼠體內(nèi),實(shí)質(zhì)是在小鼠體內(nèi)引發(fā)

      過(guò)程,Y細(xì)胞一般是從小鼠        中采集的。

(4)過(guò)程③除了采用誘導(dǎo)植物細(xì)胞原生質(zhì)體融合的方法外,還可以用       誘導(dǎo)。

(5)產(chǎn)生單抗Z細(xì)胞叫          ,它從培養(yǎng)液中吸收氨基酸的方式和分泌單抗到細(xì)胞外的方式      (相同/不同)。

(6)培養(yǎng)中的Z細(xì)胞最多含有      條染色體。

Ⅱ.(12分)細(xì)胞周期包括分裂間期(分期G1、S期和G2期)和分裂期(M期)。下圖標(biāo)注了甲動(dòng)物(體細(xì)胞染色體數(shù)為12條)腸上皮細(xì)胞的細(xì)胞周期各階段的時(shí)長(zhǎng)及DNA含量。請(qǐng)回答下列問(wèn)題:

(1)若用含放射性同位素的胸苷(DNA復(fù)制的原料之一)短期培養(yǎng)甲動(dòng)物腸上皮細(xì)胞后,處于S期的細(xì)胞都會(huì)被標(biāo)記。洗脫含放射性同位素的胸苷,換用無(wú)放射性的新鮮培養(yǎng)液培養(yǎng),定期檢測(cè)。預(yù)計(jì)最快約    h后會(huì)檢測(cè)到被標(biāo)記的M期細(xì)胞。

(2)從被標(biāo)記的M期細(xì)胞開(kāi)始出現(xiàn)到其所占M期細(xì)胞總數(shù)的比例達(dá)到最大值時(shí),所經(jīng)歷的時(shí)間為     期的時(shí)間(填圖中字母),處于該期的一個(gè)細(xì)胞中染色體數(shù)目的變化情況是        

(3)若向甲動(dòng)物腸上皮細(xì)胞培養(yǎng)液中加人過(guò)量胸苷,處于S期的細(xì)胞立刻被抑制,而處于其他時(shí)期的細(xì)胞不受影響。預(yù)計(jì)加人過(guò)量胸苷約     h后,細(xì)胞都將停留在S期。

(4)乙動(dòng)物腸上皮細(xì)胞的細(xì)胞周期時(shí)長(zhǎng)為24h,M期時(shí)長(zhǎng)為l.9h。若要在顯徽鏡下觀察細(xì)胞有絲分裂過(guò)程中染色體形態(tài)的變化,選用     (填“甲”或“乙”)動(dòng)物腸上皮細(xì)胞更合適。

(5)在光學(xué)顯徽鏡下觀察,同處于分裂末期的動(dòng)物腸上皮細(xì)胞與洋蔥根尖細(xì)胞,形態(tài)上最主要的區(qū)別是                            。

試題詳情

5.圓褐固氮菌所固定的氮素參與氮循環(huán)的全過(guò)程,下列表述正確的是 (   )

A.N2→NH3→NO3-→生物體有機(jī)氮→NH3→NO3-→N2

B.N2→NH3→生物體有機(jī)氮→NH3→NO3-→N2

C.N2→NH3→生物體有機(jī)氮→NO3-→N2

D.N2→NH3→NO3-→生物體有機(jī)氮→NH3→N2

           第Ⅱ卷(非選擇題  共174分)

試題詳情

4.下列關(guān)于甘蔗、玉米葉片結(jié)構(gòu)及光合作用過(guò)程的敘述,正確的是 (   )

① 圍繞著維管束的葉肉細(xì)胞排列疏松

② 因?yàn)槿~肉細(xì)胞的葉綠體有正常的基粒,所以,水的光解發(fā)生在葉肉細(xì)胞

③ NADPH儲(chǔ)存了能量,并具有還原性

④ CO2中的C首先轉(zhuǎn)移到C4中,然后才轉(zhuǎn)移到C3

⑤ 光能轉(zhuǎn)化為電能時(shí),電子的最終受體是ATP和NADP+

A.①③⑤       B.①①③④       C.②④⑤      D.②③④

試題詳情


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