英语六级考前模拟练习题

大学英语四六级考试中的.听力环节进行了改革，为了帮助同学们更好的复习，以下是小编为大家搜索整理的英语六级考前模拟练习题，希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业生考试网!

By the end of this year, European aircraft manufacturing consortium Airbus plans to deliver the first of its new, extra-wide-body passenger jets, the A350-XWB. Among other technological innovations, the new plane will also incorporate metal parts made in a 3-D printer.

The high price of today’s air fares is due in large part to the cost of fuel, which is why manufacturers are striving to build lighter planes, with more efficient engines and more seats.

The bodies of modern jets, like Boeing’s 787 Dreamliner, are made from composite materials, usually carbon-reinforced plastic.

Some plastic parts created in a 3-D printer are already incorporated into the Airbus A350 jet. But the new model XWB will be the first with parts printed with titanium. Airbus emerging technologies manager Peter Sander says technicians learned to print even geometrically very complex shapes.

“Normally this is a part of the fuel system, it's two pipes in one, and it's normally welded out of 10 parts," he said. "So in this case, with 3-D printing we have the chance to integrate the bracket of the pipe and two pipes at once and print it in one shot.”

3-D printing is also a solution when parts are no longer available. Sander says when Airbus engineers needed a discontinued spare part for seats, it was easy to print perfect copies.

“So we did a redesign in a week and printing in a week. So the redesign itself cost two hours, we took the manual drawing, redesigned it and put it on the desk one week later to the spare part guys,” he said.

The technology is developing rapidly and one can easily imagine entire aircraft assembled out of printed parts.

Airbus executive Axel Krein says it will take a long time, but notes that in the meantime, the number of printed parts will keep increasing.

“We are investing a lot of money in aerodynamic improvement, in material, in noise reduction, etc., but 3-D printing is probably the area with the highest gain over time,” he said.

As a sign of things to come, the giant U.S. conglomerate General Electric says it is investing $50 million in a plant that will print fuel nozzles for its aircraft engines.

　　英语听力常考词汇

1、suit

1、套装，衣服。

You look great in your new suit.　你穿上新衣服后看上去棒极了。

I bought a good suit in a clothing store.　我在衣服店里买了一套很好的套装。

2、一套公寓。这个意思必须根据后文来进行判断。

I bought a new suit in the central city this year.　我今年在市中心买了套公寓。

3、适合。

I hope it will suit you, sir.　我希望它能适合你，先生。

2、take

1、take a picture of 给……照相

Could you take a picture of me with the lake in the background?

你能以湖为背景给我照张像吗?

2、take good care of 好好照看

The man at the garage thinks that I take good care of my car。

修车库的人认为我非常爱惜自己的车。

3、tend to

倾向于，趋向于。

The paper says people tend to feel unwell if they sleep less than six hours a day。

报纸上说人如果每天睡眠少于6个小时将感到不舒服。

4、through

本意是穿越，穿过。在以下几个搭配中分别又有了不同的含义。

1、浏览。 read (straight) through

I'd better read it through again. 我最好还是再通读一次。

I didn't read straight through the way you read a novel。

我不像你读小说那样从头到尾地浏览一遍。

2、结束、完成(工作)be (go) through

I had a hard time getting through this test.　完成测验对我来说很难。

That only leaves us 15 minutes to go through the customs and check our baggage。

我们只有15分钟的时间来接受海关检查和行李检查。

After two sleepless nights, I'm finally through with it。

经过两个不眠之夜，我终于完成了。

3、接通。get sb through

Would you get me through to Dr. Lemon please?　能帮我接通Lemon医生吗?

4、睡过了。sleep through

How could you sleep through it?　你怎么能睡过头了呢?

5、播放出来。come through

The power indicator was on, and it was running, but somehow the sound didn't come through。

电源指示灯是亮的，并且正常工作，但是为什么声音就是出不来呢?