-The window is dirty． -I know．It for weeks． [ ] A． hasn't cleaned B． didn't clean C． wasn't cleaned D． hasn't been cleaned 题目和参考答案——青夏教育精英家教网—

题目内容

－The window is dirty．

－I know．It ________ for weeks．

[　　]

A．

hasn't cleaned

B．

didn't clean

C．

wasn't cleaned

D．

hasn't been cleaned

答案：D
解析：

it指上句中的window，是动作clean的承受者；同时时间状语for weeks加上语境中强调的是现在的情况，所以要用现在完成时。A项为主动语态；B项是主动语态，而且时态也不正确；C项是被动语态，但时态不合适。

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Depending on how far apart the grooves are, a car moving over them will produce a series of high or low notes, and designers are able to create a distinct tune.

Patent documents for the design describe it as notches “formed in a road surface so as to play a melody without producing simple sound or rhythm and reproduce melody-like tones”.

There are three musical roads in central and northern Japan---one of which plays the tune of a Japanese pop song. Reports say the system was invented by Shizuo Shinoda. He scraped some markings into a road with a bulldozer(推土机) before driving over them and found that they helped to produce all kinds of tones.

The optimal speed for melody road is 44 kph, but people say it is not always easy to get the intended sound.

“You need to keep the car windows closed to hear well,” wrote one Japanese blogger. “Driving too fast will sound like playing fast forward, while driving around 12 mph (20 kph) has a slow-motion effect, making you almost car-sick.”

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单词拼写（共10小题；每小题1分，满分10分）

1．我哥哥在大学学习建筑学。

My brother is learning in that university.

2．我们今天下午购物吧？那家新开的商店里有许多吸引人的东西。

Shall we go shopping this afternoon? There are many things in the new shop.

3．他考试前很紧张，所以他考得不好。

He felt rather before the exam, so he didn’t do well.

4．我们明天有机会互相交换看法。

We’ ll have an opportunity to views tomorrow.

5．由于污染，水面上漂浮着很多死鱼。

As a result of pollution, there are many dead fish on the water.

6．他在电话上一开口我就听出来了。

I him on the phone the moment he spoke.

7．没有科学技术，我们不可能发展我们国家的经济。

We can’ t develop our national without science and technology.

8．周末我偶尔与家人去看电影，但不经常。

I go to the cinema with my family at the weekend, but not often.

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It is said that this new kind of product has Nano-technology.

10．因为女儿还没回家，母亲一直焦虑地看着窗外。

As her daughter hadn’ t returned home, the mother was looking out of the window all the time.

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