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27. With the help of some witnesses, three criminals were caught and asked to aid in the ________.

A. interview       B. investigation    C. question        D. request

試題詳情

26. The doctor told Mary that too much ________ to the sun is bad for the skin.

A. exposure        B. extension       C. exhibition       D. expansion

試題詳情

25. Nowadays, to lose weight, more wise ladies prefer to ________ regularly rather than take expensive weight-losing pills.

A. hang out        B. turn up         C. work out        D. figure up

試題詳情

24. It was reported that 115 miners ________ in the flooded mine for eight days were pulled out alive at last.

A. transformed     B. trapped        C. defeated       D. stained

試題詳情

23. I feel sorry for those young people who don’t ________ their aged people as I do mine.

A. send for        B. take for        C. look for         D. care for

試題詳情

22. Unemployment is on the increase. A growing number of young people, ________, are finding themselves out of work.

A. in case         B. all in all        C. in particular     D. in total

試題詳情

第一節(jié):多項選擇(共10小題,每小題1分,滿分10分)

從A、B、C、D四個選項中選出可以填入空白處的最佳選項,并在答題卡上將該項涂黑。

21. -Flight 331 is being ________. I’d better be on my way. Goodbye.

-Bye. Happy landing!

A. appealed        B. announced      C. commanded     D. delivered

試題詳情

34.(9分)(注意:在試題卷上作答無效。)

請回答下列有關(guān)生命科學(xué)實驗的問題。

⑴右圖是顫藻和水綿細(xì)胞的比較觀察,其中乙生物是__________,從細(xì)胞的結(jié)構(gòu)可以判斷該生物屬于________(真核/原核)生物。

⑵在低倍鏡及高倍鏡下看到以下洋蔥根尖細(xì)胞圖,做“觀察植物細(xì)胞的有絲分裂”實驗時,主要觀察圖_______處的細(xì)胞;圖B細(xì)胞所在區(qū)域稱為________________區(qū)。

  

A        B

  

C      D

⑶檢查某種毒物是否能改變細(xì)胞染色體的數(shù)目,最好選用細(xì)胞分裂到__________期的細(xì)胞用顯微鏡進(jìn)行觀察。

⑷某同學(xué)按下表所示制成臨時裝片進(jìn)行有關(guān)實驗。

組別
材料
實驗條件
觀察內(nèi)容
A
紫色洋蔥鱗片葉外表皮
清水、解離液、0.3g/ml蔗糖溶液
質(zhì)壁分離
B
紫色洋蔥鱗片葉外表皮
0.3g/ml蔗糖溶液
質(zhì)壁分離

請回答以下問題:

①上述實驗中用引流法滴加蔗糖溶液,目的是________________________。

②在A組實驗中,顯微鏡下看不到質(zhì)壁分離現(xiàn)象,原因是_____________被破壞,失去了選擇透過性。

⑸在提取葉綠體色素的過程中,研磨葉片通常需加少量二氧化硅、碳酸鈣及適量丙酮。碳酸鈣的作用是______________________,丙酮的作用_____________________。

試題詳情


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