What's the present continuous tense?
什么是现在进行时态？
Question 49: What is the right use of the present continuous tense?
问题49：如何正确使用现在进行时？
We use the present continuous to talk about fixed future arrangements.
现在进行时用于表示安排好的将来动作。
The present continuous is often used to refer to a temporary situation.
现在进行时还常表示暂时的形势。
Not all the verbs in English can be used in the present continuous tense.
英语中并非所有动词都可以用于进行时态，它有动态动词与静态动词之分。
We use the present continuous tense to talk about things that are happening now.
我们使用现在进行时谈论现在正在发生的事情。
B. Fill in the blanks with the present continuous tense of the verbs in brackets.
用括号里动词的现在进行时态来填充空格。
The glittering descriptions and use of the present continuous tense add to the immediacy.
华丽的描述和现在进行时的使用增添了实感。
We use the present continuous to talk about present situations which we see as short-term or temporary.
我们使用现在的连续谈论我们视为的现在的情形短期或暂时的。
T summarizes:We use the present continuous tense to talk about things that are happening now or these days.
现在进行时表示现在（说话瞬间）或现阶段正在进行或发生的动作。
This lesson aims at the present continuous tense teaching which is the inward thread through the whole class.
总体上来说，本节课备课思路是比较明确的。
The drama is also in the present continuous tense, so it requires that the dramatist not control the plot and characters too much.
戏剧文学为正在完成式时态，又要求剧作家对情节人物等不能过分操纵。
Complete these sentences with the present continuous form of the verbs given in the brackets, changing the word form where necessary.
用括号中所给的动词的现在进行时完成句子，必要时变化词型。
Complete these sentences with the present continuous form of the verbs given in the brackets, changing the word order where necessary.
用括号中所给的动词的现在进行时完成句子，必要时变化词序。
Users' demands for continuous uptime availability guaranteed in the SLA present a challenge for developers, business analysts, systems administrators, and other members of a project team.
用户要求在SLA中保证持续的正常运行时间有效性，这对开发人员、业务分析师、系统管理员和项目团队其他成员提出了挑战。
The longest continuous record of atmospheric carbon dioxide levels (1958-present) comes from Mauna Loa Observatory in Hawaii.
夏威夷的莫纳罗亚山气象观测站提供了从1958年至今为期时间最长的大气二氧化碳水平的连续记录。
The continuous circulation and re-assortment of influenza viruses in nature represents an ever-present public health threat to both animals and people.
流感病毒在自然界的不断流行和重组对动物和人类公共卫生造成持续威胁。
To facilitate understanding the teacher should outline that there are two basic present tenses one the simple and one continuous or progressive.
帮助学生加强理解，老师应该概括归纳现在时的两种基本形式，就是一般现在时和现在进行时。
Large vocabulary continuous speech recognition is main direction of speech recognition research at present, in which the research on particularity of tone recognition is an important work.
大词汇连续语音识别是当前语音识别研究的主流，探讨其中声调识别的特殊性是一项有意义的工作。
You'll notice that's its very common for a native speaker to use the present perfect continuous like this when greeting a buddy.
你会发现对于一个母语使用者，他们在问候兄弟时很喜欢用现在完成进行时。
The present paper shows that a class of continuous maps on circles which is extensiver than expand maps is topological stable.
讨论圆周上一类比扩张映射更广泛的连续映射，证明这种映射是拓扑稳定的， 并且其逆极限系统是可扩。
In this paper, we put forward an experiment design that can integrate continuous and pulse NMR image because of the deficiency of NMR experiment in the present university.
针对目前高校核磁共振实验开设现状的不足之处，提出了一种综合了连续和脉冲核磁共振实验结合的实验设计。
At present, the theoretics of continuous Bridges and continuous rigid-frame Bridges have been researched deeply, design theoretics has matured and the experience of construction has been abundant.
目前，关于预应力混凝土连续梁、连续刚构的理论研究较为深入，从设计理论上讲已日趋成熟，施工经验也较丰富。
The continuous wave radar is the main tracking equipment for trajectory observing at present. Estimation and calibration of system errors have important significance.
连续波雷达是目前外火箭轨道测量的主要高精度设备，用数学方法估计和修正其系统误差有特别重要的意义。
At present, owing to the space laser communications experiment continuous progress in the settlement of laser communication some of the key technology becomes imperative.
目前由于各国空间激光通信试验的不断推进，解决激光通信中的一些关键技术就变得刻不容缓。
At present, owing to the space laser communications experiment continuous progress in the settlement of laser communication some of the key technology becomes imperative.
目前由于各国空间激光通信试验的不断推进，解决激光通信中的一些关键技术就变得刻不容缓。
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