occur的同义词辨析
occur有发生;存在;出现;想到等意思，那么你知道occur的同义词有哪些吗?下面小编为大家带来occur的同义词及辨析，希望对大家的学习有所帮助!
occur同义词：
happen, occur, chance, take place
occur同义词辨析：
这些词语都可表示"发生"之意。
happen 普通用词，泛指一切客观事物或情况的发生，强调动作的偶然性。
occur 较正式用词，可指意外地发生，也可指意料中的发生。
chance 侧重事前无安排或无准备而发生的事，特指巧合。
take place 多指通过人为安排的发生。
occur的例句：
1. If these drugs are stopped abruptly then some withdrawal symptoms may occur.
如果突然停服这些药，则可能出现一些戒断症状。
2. Keep a pad handy to jot down queries as they occur.
手边放一本便笺簿，以便有问题时随时记下。
3. Nitrates are chemicals that occur naturally in water and the soil.
硝酸盐是水和土壤中自然存在的化学物质。
4. Emergency cooling systems could fail and a reactor meltdown could occur.
紧急冷却系统有可能失灵，核反应堆有可能发生堆芯熔毁。
5. Unless you respect other people's religions, horrible mistakes and conflict will occur.
如果不尊重别人的宗教信仰，就会祷下大错，酿成冲突。
6. When vacancies occur, the office puts out feelers to the universities.
有空缺职位的时候，办事处就到各个大学去打探。
7. Changes in temperature occur slowly and are constrained within relatively tight bounds.
温度变化缓慢，而且局限在相对较小的范围内。
8. These snails do not occur on low-lying coral islands or atolls.
在地势低平的珊瑚岛或环礁上没有这种螺。
9. About two in every five epileptic fits occur during sleep.
每5例癫痫病中约有两例是在睡眠过程中发作的。
10. It did not occur to me to check my insurance policy.
我没有想到要核实我的保险单条款。
11. There will come a time when the crisis will occur.
危机总有一天会爆发。
12. Curiously, the word "gay" does not occur in the index.
奇怪的是，gay这个词没有出现在索引当中。
13. Chemical transformations occur.
发生了化学转换。
14. No one has suggested how this might occur.
没人说得清这事是怎么发生的。
15. They expect bonding to occur naturally.
他们希望能够建立自然的关系。