26.If you let challenges and difficulties benefit depress you, much more can be accomplished than you thought possible.
A.more than B.rather than C.less than D.other than
25.No decision about the holding of the conference until all the related factors have been taken into consideration.
A.will be made B.is made C.has been made D.is being made
24.He didn’t put the things where they belonged, in case everything was out of order.
A.that B.what C.whose D.which
23.--- Is Bob still working in your school?
--- I’m afraid not.He is said and in a private school recently.
A.to resign; to teach B.to have resigned; to teach
C.to resign; to be teaching D.to have resigned; to be teaching
22.The idea for the new plan came to his mind, to his experiment in the lab.
A.while devoting B.while devoting himself
C.while he was devoted D.while devoted
第一節(jié):語法和詞匯知識(shí)(共l5小題;每小題l分,滿分l5分
21.There is a need to get food and blankets to the earthquake victims.
A.desperate B.depressed C.badly D.very
46.(8分)某同學(xué)按下表所示制成臨時(shí)裝片進(jìn)行有關(guān)實(shí)驗(yàn)。
組別 |
材料 |
實(shí)驗(yàn)條件 |
觀察內(nèi)容 |
A |
浸泡過的花生種子 |
清水、蘇丹Ⅲ染液、50%酒精 |
細(xì)胞中著色的小顆粒 |
B |
人的口腔上皮細(xì)胞 |
X染液 |
線粒體 |
C |
菠菜葉 |
清水 |
葉綠體 |
D |
紫色洋蔥鱗片葉外表皮 |
0.3g/mL;蔗糖溶液 |
質(zhì)壁分離 |
將上述各組實(shí)驗(yàn)材料按表中實(shí)驗(yàn)條件進(jìn)行相關(guān)處理后,制成臨時(shí)裝片,放在顯微鏡下觀察。分析回答:
(1)上述實(shí)驗(yàn)中需要的材料用具除顯微鏡外,還需刀片、鑷子、滴管、吸水紙、 和
。
(2)A組實(shí)驗(yàn)的目的是 ,50%酒精的作用是 。
(3)B組實(shí)驗(yàn)的X染液是 ,顯微鏡下看到的線粒體呈 色。
(4)在C組實(shí)驗(yàn)中,要選取菠菜葉稍帶些葉肉的下表皮,原因是 。
(5)D組實(shí)驗(yàn)中,選用紫色洋蔥鱗片葉的原因是 。
45.(7分)1985年前,某地農(nóng)村農(nóng)作物秸稈都是當(dāng)作燃料,而農(nóng)戶和家畜的糞便等均作為肥料直接施入農(nóng)田。后來逐步開始進(jìn)行農(nóng)村產(chǎn)業(yè)結(jié)構(gòu)調(diào)整,下圖是2006年時(shí)當(dāng)?shù)厣鷳B(tài)工程示意圖。
(1)試分析1985年前生產(chǎn)形式的主要不利影響是 。
(2)該生態(tài)工程的建設(shè)遵循了 和 等基本原理。生態(tài)工程與傳統(tǒng)工程相比較,具有 等特點(diǎn)。
(3)當(dāng)?shù)厝讼MM(jìn)一步提高該系統(tǒng)的經(jīng)濟(jì)效益和生態(tài)效益。專家經(jīng)過考察后,建議他們?cè)黾右粋(gè)奶牛養(yǎng)殖項(xiàng)目。村民接受了專家的建議,并對(duì)原有的生產(chǎn)項(xiàng)目作了一些調(diào)整。他們需要調(diào)整的項(xiàng)目主要是 。
(4)現(xiàn)代生物技術(shù)可應(yīng)用于生態(tài)建設(shè),例如基因工程中抗蟲、抗病轉(zhuǎn)基因植物的種植減少了農(nóng)藥的使用;細(xì)胞工程中組織培養(yǎng)技術(shù)的應(yīng)用,可對(duì)城市環(huán)境進(jìn)行綜合治理。又如胚胎工程中胚胎移植可以用于 等。
(5)該生態(tài)工程中的能量能夠更多的被人類利用,原因是 。
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