圖9是我國第二次北極科學考察路線上溫室氣體的分析結(jié)果，讀圖完成下面試題。

1．從圖中可以得到的正確信息是

    A．CO₂濃度隨緯度升高而表現(xiàn)出逐漸減少的趨勢

B．CH₄濃度在40°N以北隨緯度增高而增加

C．人類活動是造成沿線CO₂和CH₄濃度變化的主要原因

D．洋流是造成沿線CO₂和CH₄濃度變化的主要原因

2．下列有關(guān)溫室氣體的正確說法是

A．溫室氣體就是指二氧化碳       B．溫室氣體能夠反射紅外線

C．CH₄是天然氣水合物的主要成份  D．氟氯烴物質(zhì)也是溫室氣體

虛擬水資源是指生產(chǎn)商品和服務(wù)所需要的水資源數(shù)量。讀表完成：

3.從生態(tài)可持續(xù)發(fā)展的視角看，以色列農(nóng)業(yè)的發(fā)展方向是

A．糧食種植業(yè)為主  B．乳畜業(yè)為主  C．園藝業(yè)為主  D．家禽飼養(yǎng)業(yè)為主

4.從虛擬水角度看，我國西北干旱地區(qū)應(yīng)

①大量引進水密集型的產(chǎn)品  ②發(fā)展高效節(jié)水農(nóng)業(yè)  ③調(diào)整農(nóng)業(yè)結(jié)構(gòu)

④優(yōu)化飲食結(jié)構(gòu)  ⑤充分開采地下水  ⑥大規(guī)模引進高山融雪水

A．①②③④  B．②⑤⑥  C．②③⑥  D．①②③⑤

. I wouldn’t want to go back ___   an employee now that I have been self-employed．

  A．to be     B．have been     C．be  D．to being

If you ______  the medicine, you____  better now.

A．took, would feel              B．had taken, felt

C．had taken, would feel             D．took, would have felt

--- Do you know the reason _________ pilots turn off the plane’s lights before taking off?

   ---The practice is for the passengers to adjust to the dark _________ an emergency.

A. why; for fear that                    B. for which; in case of          

C. how; for fear of                      D. that; in case

Whenever asked to help me with my lessons, he always refuses, ______ he is too busy.

A. to say           B. saying      C. says     D. having said

—Remember the first time we met, Jim? —Of course I do. You _____  in the library.

 A．were reading　　 B．had read    C．have read       D．read

We may be able to _______ you in some way if you can not finish your work on time.

 A. assist B. insist      C. provide D. evaluate

She is so ______ that no one can ever persuade her.

A. reliable         B. stubborn    C. artificial    D. intelligent

—Has the little boy passed_____P. E. test？

—He has tried twice and the teacher will allow him to have ______third try.

A. the； 不填  B. a； the  C. the； a  D. the； the