From VOA Learning English, this is IN THE NEWS.
North Korea is urging foreign embassies to consider telling their workers to leave the capital, Pyongyang, because of rising tensions. Britain says North Korea gave the warning to embassies and international organizations on Friday. The North Korean government reportedly said it cannot guarantee their safety after April tenth in, what it called, "the event of a conflict."
The government has made a series of threats in recent weeks against South Korea and the United States.
The two countries have long enjoyed a strong alliance. For years, the United States stored nuclear weapons in South Korea for use against the North if it attacked the South. Those weapons were removed in 1991. But South Korean officials have been debating whether to have the United States redeploy the arms.
North Korea has wanted to keep its military strong. The North launched its first long-distance rocket in 1998. After a year of negotiations, North Korea agreed to stop long distance missile tests in exchange for better contacts with the United States and its allies. As part of the 1999 agreement, the North received money and food aid.
Since then, North Korea has gone back, periodically, to using threats to get more money and food. But in the past few months, the war of words has gotten louder and more threatening. Last December, North Korea launched a long distance rocket. Then, in February, it carried out an underground nuclear test.
Those actions led the United Nations Security Council to expand existing sanctions against North Korea. The Council's decision so angered the North that this week, the government said it had been given final approval for a nuclear attack against the United States. But many military experts do not believe the North can act on the threat.
South Korea reported this week that North Korea has moved one of its missiles to its eastern coast. South Korean Defense Minister Kim Kwan-Jin said the missile appears to have what he called "considerable range." But he does not believe it can reach the United States mainland.
American Defense Secretary Chuck Hagel said he is taking the threat seriously.
"Some of the actions they've taken over the past few weeks present a real and clear danger and threat certainly to the interest of our allies, starting with South Korea and Japan."
On Wednesday, the United States said it plans to deploy an advanced missile defense system to Guam, an American territory in the Pacific Ocean. The move is meant to serve as a warning, but it will take several weeks for the system to arrive.
South Korea's Ministry of National Defense has confirmed the movement of at least one missile by North Korea.
South Korea is also preparing for an attack. It has deployed two warships with radar designed to monitor missiles.
由于不断升级的紧张局势，朝鲜敦促外国大使馆考虑下令其工作人员暂离首都平壤。英国表示，朝鲜于周五向大使馆和国际组织发出通告 。据报道，朝鲜政府表示，4月10日的“冲突事件”过后，他们已不能保证自身的安全 。
美国和韩国的联盟关系非常牢固。多年来，美国在韩国存储了核武器，一旦朝鲜袭击韩国，用于打击朝鲜 。这些武器于1991年移除 。但是韩国官员正在争论是否应该让美国重新部署这些核武器 。
朝鲜想要保持强大的军事能力。1998年，朝鲜发射了首枚远程火箭 。经过一年的谈判后，朝鲜同意暂停远程导弹测试，换取与美国及其盟国更好的联系 。作为1999年协议的一部分，朝鲜受到了金钱和食品救援 。
自那时以来，朝鲜经常周期性地利用威胁来换取更多金钱和食物。但是过去几个月，口头战争的声音越来越大，也越来越有威胁性 。去年12月份，朝鲜发射了远程火箭 。随后，2月份，他们进行了地下核试验 。
这些行为导致联合国安理会扩大了现在正在对朝鲜实行的制裁。安理会的决定激怒了朝鲜 。因此，本周朝鲜政府称，他们已经最终通过对美国发动核攻击的决定 。但是许多军事专家不相信朝鲜有能力实现该威胁 。
本周，韩国报道称，朝鲜已经向东海岸运输导弹。韩国国防部长金宽镇(Kim Kwan-Jin)表示，这枚导弹似乎拥有“相当远的射程” 。但是他不相信射程可以到达美国本土 。
周三，美国表示，他们计划在关岛部署高级导弹防御系统。关岛是美国位于太平洋上的领土 。此举志在提出警告，但是装备需要几周的时间才能到达 。
The new system of waiting lists should guarantee fairness to all patients.
2.periodically adv.周期性地； 定期地，偶尔
Economic crises recur periodically.
Thousands of people in Tokyo go to work or back home by trains or the undergrounds everyday.
4.approval n. 批准；认可；赞成
The new proposals have won the approval of the board.
There is considerable variability in all the test scores.
The infantry began to deploy at dawn.
1.But South Korean officials have been debating whether to have the United States redeploy the arms.
①have sb．／sth．do sth．与have sb．／sth．doing sth．两者都是宾语发出的主动动作。前者指 “使某人／物做某事（指一次性的具体
的动作）”；后者指“使某人／物一直处于某种状态”，常接一段时间作状语。②have sth．done这一结构中的宾语与宾补动词是被动关系 。
③have sth． to do这一结构中的have意为“有”，即“有某事要做”。解题时要注意这四个结构的形式变化，如对宾语提问、被动结构等 。
2.After a year of negotiations, North Korea agreed to stop long distance missile tests in exchange for better contacts with the United States and its allies.
in exchange for交换
The trade unions bargained away their rights in exchange for a small pay raise.
3.But many military experts do not believe the North can act on the threat.
英语中某些动词，如：think, suppose, believe, expect等后面若接否定意义的宾语从句，否定词要移到主句谓语动词的前面，这一现象在英语语法中被称为“否定前移”。如：
I don’t think it’s going to rain.我认为不会下雨。
I don’t suppose they’ll come back tonight.我认为他们今晚不会回来。