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All the preparations for the task _____, and we’re ready to start.

A．completed                            B．complete

C．had been completed                     D．have been completed

 

【答案】

Ｄ

【解析】

試題分析：句意：所有為這項(xiàng)任務(wù)的準(zhǔn)備工作都已經(jīng)完成了，我們就準(zhǔn)備開始了。結(jié)合語境可知本句描述的是現(xiàn)在已經(jīng)完成的動(dòng)作，故用現(xiàn)在完成時(shí)態(tài)，任務(wù)是被完成的對(duì)象，故用被動(dòng)語態(tài)。選D。

考點(diǎn)：時(shí)態(tài)及語態(tài)

點(diǎn)評(píng)：英語中的時(shí)態(tài)主要是借助于時(shí)間狀語與上下文語境來進(jìn)行判斷。解答此類題型，首先要注意句子中的時(shí)間狀語，如果沒有則要通過分析上下文，結(jié)合語境來判斷句子的時(shí)態(tài)。語態(tài)的判斷主要是確定句子主語與謂語動(dòng)詞的關(guān)系。如果是主動(dòng)關(guān)系則用主動(dòng)語態(tài)，反之如果是動(dòng)賓關(guān)系，則用被動(dòng)語態(tài)，尤其要注意一些特殊動(dòng)詞的用法。

 

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科目：初中英語 來源：隨堂講與練　八年級(jí)下冊(cè)(配合牛津英語) 牛津版 題型：050

閱讀下面短文，然后根據(jù)短文內(nèi)容選擇最佳答案。

　　Water can be a liquid, a solid or a gas．When it is a solid, it may be as hard as rock．When it is a liquid, you can pour it out of a bottle．When it is a gas, you cannot see or pr feel it．

　　Water can change from one form to another easily．When we freeze water, it turns into ice．When we boil water, it turns into steam．When ice melts, it turns into water．When steam cools, it turns into water．The three forms of water are ice, steam and water．

　　Where does water come from? Water rises to the sky by the heat．Water vapour is formed．This rises and forms clouds in the air．When the clouds come near a mountain, they are forced to rise．As the clouds rise, they are cooled．The higher they rise, the more they are cooled．This causes more and more water vapour to condense(凝結(jié))．In this way, the tiny drops of water in the clouds get bigger and bigger until they are heavy enough to fall to the earth as rain．

　　Some rain water which falls on the earth again rises to the sky by the sun's heat．Some of it sinks into the ground．It may be used up by thirsty plants．It may reach a well．Most of the water goes back to the rivers, seas and oceans．This process then starts all over again．This process is called the water cycle．

(1)

What are the forms of most matter?

[　　]

A．

solid, rock, ice．

B．

liquid, gas, solid．

C．

gas, rock, steam．

D．

water, ice, steam．

(2)

What may happen when the clouds rise?________．

[　　]

A．

The higher they rise, the more they are heated．

B．

The higher they rise, the more they are cooled．

C．

The higher they rise, nothing will happen．

D．

The higher they rise, the more they change into water．

(3)

The tiny drops of water in the clouds cannot be called rain ________ to fall to the earth．

[　　]

A．

until they are heavy enough

B．

until they get bigger enough

C．

before they are too heavy

D．

when they are heavy enough

(4)

Most of rain water which goes back to the rivers, seas and oceans is ________ by the sun's heat．

[　　]

A．

condensed

B．

forced to rise

C．

evaporated(蒸發(fā))again

D．

changed into steam

(5)

According to the article, which of the following statements is true?

[　　]

A．

When water evaporates, we also say that is condenses．

B．

Most of the rain water which falls on the earth is evaporated again by the sun's heat．

C．

The higher the clouds rise, the smaller the tiny drops of water in the clouds get．

D．

The clouds are formed by water vapour．

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