[数] 连续实值函数

掌握英语发音第一章第三节

[00:00.00][s],[ ][ ] [00:38.61]sea/sheet/chicken [00:42.66]Exercise One: Word Conparison [00:47.62]Listen to the following words from your tape and repeat. [00:52.98]sip ship sane shane watched washed [01:01.23]lass lash least leashed chin [01:09.09]

发表于:2018-12-03 / 阅读(647) / 评论(0)

掌握英语发音

英语语法：现在完成进行时

现在完成进行时(The Present Perfect Continuous Tense)表示由过去某时持续到现在的动作，由have(has)been+现在分词构成： It has been raining for three hours. 一连下了三个钟头的雨。 She has been working the whole mo

发表于:2018-12-18 / 阅读(508) / 评论(0)

英文语法词汇

英语语法：过去完成进行时

过去完成进行时(The Past Perfect Continuous Tense)：表示过去某时前一直在进行的动作，由had been+现在分词构成： I asked him what he had been doing．我问他一盲在干什么。 He had been working all day and was very

发表于:2018-12-18 / 阅读(453) / 评论(0)

英文语法词汇

纯正英语一分钟-coffee

Scientists and doctors cant make their minds up about coffee. One study says its really bad for us and the next report says its good for us. Ive even read that 10 cups a day is good for our brain. I like a cup of coffee at certain times of the day. I

发表于:2018-12-26 / 阅读(526) / 评论(0)

纯正英语一分钟

美国英语听力80篇3 Lesson48

[00:10.06]Gehrig continued to improve as a player. [00:14.05]By 1924, pitchers for opposing teams were having bad dreams about Lou Gchrig and Babe Ruth. [00:23.04]Ruth hit sixty home runs that year. [00:26.36]Gchrig hit forty seven and won the Americ

发表于:2018-12-26 / 阅读(511) / 评论(0)

美国英语听力80篇

听一分钟英文：Coffee-咖啡

发表于:2018-12-28 / 阅读(467) / 评论(0)

听一分钟英文-C

听广告学英语-Multi-function System理光数码多功能系统

听广告学英语:RICHON Aficio Digital Multi-function System理光数码多功能系统原文：Mary:Everybody calls me a multi-function secretary. One of her bosses (gives her a pad of paper):Mary, pick up this. Mary:Because I have to serve several bosses. Anothe

发表于:2019-01-02 / 阅读(687) / 评论(0)

听广告学英语

英语高频词：just用法综述

just在英语中是一个重要的词语，其使用方法也是多种多样的。Just可以用作一个时间表达，用来在一些固定表达中表示某事十分重要，对词语进行强调，并作为only的同义词。本指南可以帮助你

发表于:2019-01-03 / 阅读(521) / 评论(0)

英文语法词汇

Queen‘s small celebration 女王登基60年庆祝活动

Celebrating the Queen's Diamond Jubilee... in miniature. A new Lego model of Elizabeth II, complete with a mini version of the crown jewels, has been added to the Buckingham Palace scene at the toy company's theme park. The 1.5 cm tall crown is made

发表于:2019-01-05 / 阅读(443) / 评论(0)

伦敦谈体育

The London Tube

Yvonne: This is 6 Minute English, I'm Yvonne Archer and Alice has kindly joined me for today's programme. Hello Alice. Alice: Hi Yvonne. Yvonne: Now Alice, how do you get around London? Alice: Ooh by bus, bicycle and usually the Tube. Yvonne: Aha, an

发表于:2019-01-07 / 阅读(675) / 评论(0)

六分钟英语

UNIT 2 On the Train Lesson 16

[ti:UNIT 2 On the Train Lesson 16] [0:00.641]Unit 2 [0:03.070]On the Train [0:05.053]Lesson 16 [0:07.484]Unit Review [0:09.731]Ⅰ. [0:11.044]Building Your Vocabulary [0:14.048]A. [0:14.982]Fill in the blank with the proper word. [0:17.959]The first

发表于:2019-01-09 / 阅读(611) / 评论(0)

河北教育初中英语（初中起点）七年级下册

UNIT 3 Amazing Animals Lesson 17: People Love Pets!

[ti:UNIT 3 Amazing Animals Lesson 17: People Love Pets!] [0:00.501]UNIT 3 第三单元 [0:01.876]Lessons 17～24 第17~24课 [0:04.543]Amazing Animals 令人惊异的动物 [0:06.544]You Will Learn 你将学到 [0:07.794]Functions 实际应用 [0:08.

发表于:2019-01-09 / 阅读(679) / 评论(0)

河北教育初中英语（初中起点）八年级下册

小狐外传第69期:戏法

First Mr. Yee did a trick with scarves. 首先易先生用围巾变了一个戏法。 I told you, said Fox. 我说过吧，小狐说。 Then Mr. Yee made his helper vanish. 接着易先生将他的助手变没了。 Ho-hum, said Fox. 哼，小狐说。

发表于:2019-01-29 / 阅读(443) / 评论(0)

小狐外传

WHO Report on Noise

> 28 世界卫生组织关于噪音污染的报道 DATE=3-29-01 TITLE=SCIENCE REPORT - WHO Report on Noise BYLINE=Caty Weaver Start at 59

发表于:2019-01-30 / 阅读(436) / 评论(0)

科技之光

办公英语电话故障

Key Sentences(重点句子) 146．The connection was bad．通话情况很糟。 147．There was a lot of echo and I couldn't hear well．回音太多，我听不清楚。 148．I'll connect you agian．我再为您接通一次。 149．I've just

发表于:2019-02-07 / 阅读(484) / 评论(0)

实用英语

How to Establish New Habits the No-Sweat Way

The chains of habit are generally too small to be felt until they are too strong to be broken. - Samuel Johnson Editors note: This is a guest post from Mary Jaksch of Goodlife Zen. Have you ever had problems establishing a new habit? Maybe I should a

发表于:2019-02-14 / 阅读(591) / 评论(0)

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成功是什么？一句话定义成功

Have you ever thought why there are very few great people? I think there is probably only one great person out of 10,000 at best, and most probably much less than that. But why? Most people want to be great, right? Why are there only very few of them

发表于:2019-02-17 / 阅读(574) / 评论(0)

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成功是什么?

发表于:2019-02-18 / 阅读(503) / 评论(0)

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托福阅读背景材料：噪音对我们的影响

下面给大家提供一篇关于生活中噪音的影响的托福阅读背景材料，希望能拓宽同学们的阅读面。 I'm grad to see so many of you here. We'vebecome really alarmed over the health center by thenumber of students we are seei

发表于:2019-03-02 / 阅读(542) / 评论(0)

托福英语

电话故障

发表于:2019-03-11 / 阅读(694) / 评论(0)

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apigenin-8-o-glucoside