8分.35題8分.共30分)32.科研人員利用紅外測量儀可以靈敏地測量一 個(gè)密閉的小室中的CO2濃度.現(xiàn)進(jìn)行如下實(shí)驗(yàn): 在密閉但可透光的兩相同小室中分別放置葉面積 都是10cm2的A.B兩種植物的葉片.小室的容積 均為1升.在充足的光照條件下測量CO2的濃度.測量結(jié)果記錄于下表:(CO2的濃度單位:毫克/升) 記錄時(shí)間(分) 0 5 10 15 20 25 30 35 40 45 A種植物葉片 150 113 83 58 50 48 48 48 48 48 B種植物葉片 150 110 75 50 35 18 8 8 8 8 根據(jù)表中記錄到的數(shù)據(jù)回答下列問題: (1)從表中可以看出密閉小室中的CO2濃度變化趨勢是逐漸降低.原因是 ▲. (2)從記錄的結(jié)果看.當(dāng)CO2濃度降低到一定水平后不再降低了.維持在這個(gè)水平上.其原因是 ▲ . (3)如果將大小.長勢相似的A種植物和B種植物培養(yǎng)在同一個(gè)密閉的鐘罩內(nèi)進(jìn)行實(shí)驗(yàn).其他條件相同.一段時(shí)間后.生長較良好的是 ▲ 種植物. (4)假定植物光合作用的最初產(chǎn)物是葡萄糖.經(jīng)測定:在光照下密閉容器內(nèi)CO2的質(zhì)量每減少44克.植物體內(nèi)葡萄糖凈增加30克.則實(shí)驗(yàn)中的B種植物葉片在25分內(nèi)凈增加的葡萄糖的質(zhì)量為 ▲ 毫克. 查看更多

 

題目列表(包括答案和解析)

(本小題共6分,其中⑴題2分,⑵題4分)
某化學(xué)興趣小組為了測定某種生鐵樣品中鐵的質(zhì)量分?jǐn)?shù),在實(shí)驗(yàn)室將5.8g生鐵樣品放入燒杯中,加入50g稀硫酸恰好完全反應(yīng)(雜質(zhì)不參加反應(yīng)),反應(yīng)后稱得剩余物質(zhì)的總質(zhì)量為55.6g。請回答:
⑴你分析后一定能計(jì)算出產(chǎn)生氫氣的質(zhì)量為    。你上述計(jì)算的理論依據(jù)是          。
⑵請你參與這個(gè)小組,來計(jì)算出該生鐵樣品中鐵的質(zhì)量分?jǐn)?shù)是多少?(結(jié)果保留一位小數(shù))

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(本小題共6分,其中⑴題2分,⑵題4分)
某化學(xué)興趣小組為了測定某種生鐵樣品中鐵的質(zhì)量分?jǐn)?shù),在實(shí)驗(yàn)室將5.8g生鐵樣品放入燒杯中,加入50g稀硫酸恰好完全反應(yīng)(雜質(zhì)不參加反應(yīng)),反應(yīng)后稱得剩余物質(zhì)的總質(zhì)量為55.6g。請回答:
⑴你分析后一定能計(jì)算出產(chǎn)生氫氣的質(zhì)量為    。你上述計(jì)算的理論依據(jù)是          。
⑵請你參與這個(gè)小組,來計(jì)算出該生鐵樣品中鐵的質(zhì)量分?jǐn)?shù)是多少?(結(jié)果保留一位小數(shù))

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(本小題共6分,其中⑴題2分,⑵題4分)

某化學(xué)興趣小組為了測定某種生鐵樣品中鐵的質(zhì)量分?jǐn)?shù),在實(shí)驗(yàn)室將5.8g生鐵樣品放入燒杯中,加入50g稀硫酸恰好完全反應(yīng)(雜質(zhì)不參加反應(yīng)),反應(yīng)后稱得剩余物質(zhì)的總質(zhì)量為55.6g 。請回答:

⑴你分析后一定能計(jì)算出產(chǎn)生氫氣的質(zhì)量為     。你上述計(jì)算的理論依據(jù)是           。

⑵請你參與這個(gè)小組,來計(jì)算出該生鐵樣品中鐵的質(zhì)量分?jǐn)?shù)是多少?(結(jié)果保留一位小數(shù))

 

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文學(xué)名著閱讀(10分,每題5分)
【小題1】下列各項(xiàng)中對作品故事情節(jié)的敘述不正確的兩項(xiàng)是(    )
A.黛玉進(jìn)榮國府,除外祖母外,還見了二舅母王夫人,大舅母邢夫人,賈珠的妻子李紈,“鳳辣子”王熙鳳以及迎春、探春、惜春和銜玉而生的賈寶玉。
B.初春時(shí)節(jié),黛玉做了一首詩《桃花行》,大家稱賞不已,議定改“海棠社”為“桃花社”,林黛玉為社主,三月初五日齊集瀟湘館。
C.寶玉戴著斗笠披著蓑衣來看黛玉。黛玉笑他像個(gè)漁翁。寶玉說要弄一套給她,黛玉笑著說自己穿上就成了漁婆。言畢,她頓覺失言,羞得臉飛紅,便伏在桌上嗽個(gè)不住。
D.抄檢大觀園,查到探春,探春命丫鬟們秉燭開門而待。但探春只允許搜查她自己的東西,丫鬟的東西不能碰。查到惜春處,竟在入畫箱中搜出一些銀錁子和男人的靴襪等物。惜春膽小,見了這些雖害怕,但仍袒護(hù)入畫,還宣稱自己早知道此事。
E.在“試文字寶玉始提親”章節(jié)里,有人給寶玉說親,女方是才貌雙全,家境殷實(shí),只是要女婿入贅,說親未果。而后邢夫人向賈母建議說:“何用別處去找,一個(gè)寶玉,一個(gè)金鎖的天配姻緣,老太太怎么忘了?”此建議得到賈母等人的贊同。
【小題2】《紅樓夢》第一回是開篇。先后分別用“          ”、“          ”兩個(gè)神話故事作楔子,為塑造賈寶玉的性格以及描寫賈寶玉和林黛玉的愛情故事作鋪墊,為小說染上了一層浪漫主義的色彩。(每空1分,共2分)
【小題3】請簡述林黛玉第二次葬花的主要情節(jié)。(3分)
【小題4】請簡述寶玉挨打的三個(gè)原因。(3分)

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完型填空(共20小題;每小題1分,滿分20分)
閱讀下面短文,掌握其大意,然后從四個(gè)選項(xiàng)(A、B、C和D)中,選出最佳選項(xiàng)。
"Hey, Tahlia! How's the model?"
I had just taken a bite of my hot dog __21__ I heard a familiar voice yelling at me from across the crowded school yard. I saw a group of popular girls who were all __22__.
"What kind of __23_ are you going to do? An ad for a Frankenstein movie?" More laughter. My stomach twisted into a tight knot. How could they humiliate (羞辱) me like this, __24__ the entire school? As I walked into the cafeteria, I __25__ the dark scars on my right hand.
At 9 months old, I knocked over a tea pot and dumped boiling water allover my hands and stomach. My parents __26__ me to the hospital, but I had to have skin graft (移植) operation. I was in so much pain! But what __27__ me most were the cruel things people said about how I looked, __28__ that day at lunch.
The girls were being supermean to me because they'd heard I was considering doing some modeling. A close friend had suggested that I shouldn't let my scars limit me and that I might __29__ a good model.
But after that __30__ at school, I was sure I'd made a huge mistake. Upon arriving home, I covered the mirror with a blanket, fell on my bed and sobbed.
The next day, I __31__ myself to go to school. At lunch my best friend Jesse tried to encourage me: "You can't __32_ forever, Tahlia. So what if you have a few scars? Just go outside and show them that you're just as good as they are." Although I knew he was right, I couldn’t __33__ standing up for myself like that.
However, that night as I sat on the bed, my friend's words replayed in my mind. I'm __34__ hiding from myself, I thought. How stupid! Slowly, I stood up, walked over to the __35__, and tossed the blanket aside. There, in the mirror I saw a slim, dark-haired, blue-eyed girl, looking just fine, __36__ with a few scars.
The next day I wore a comfortable T-shirt to school. What's more, I had lunch outside the cafeteria, __37__ beside those mean girls. They were shocked that I should dare to walk into their territory. I felt __38_ too—free and happy.
Sometimes people still look at me strangely. They __39_ and stare, but I don't let it get to me. I have applied to several modeling companies, and at least one company is considering me for jobs. Maybe I'll never __40_ posing on the runway, but I do know one thing: I'm done.
【小題1】
A.a(chǎn)s B.when C.while D.before
【小題2】
A.a(chǎn)pplauding B.cheering C.laughing D.quarreling
【小題3】
A.modeling B.writing C.drilling D.a(chǎn)cting
【小題4】
A.in spite of B.in view of C.in terms of D.in front of
【小題5】
A.looked into B.searched for C.wondered aboutD.glanced at
【小題6】
A.presented B.sent C.rushedD.handed
【小題7】
A.hurtB.beat C.disappointed D.puzzled
【小題8】
A.for B.like C.on D.a(chǎn)fter
【小題9】
A.impressB.make C.consult D.defeat
【小題10】
A.effect B.phenomenon C.challenge D.scene
【小題11】
A.forced B.expected C.reminded D.preferred
【小題12】
A.a(chǎn)pologize B.beg C.hide D.complain
【小題13】
A.consider B.imagine C.a(chǎn)ppreciate D.resist
【小題14】
A.hardly B.ever C.even D.gradually
【小題15】
A.blanket B.bed C.chair D.mirror
【小題16】
A.while B.though C.but D.because
【小題17】
A.right B.still C.therefore D.a(chǎn)nyhow
【小題18】
A.sensitive B.uncomfortable C.different D.tense
【小題19】
A.compare B.a(chǎn)ssociate C.wave D.whisper
【小題20】
A.give up B.end up C.put up D.set up

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