我们在使用显微镜观察标本时，应该用左眼观察，同时闭上右眼。 （ ）
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题目分析：在使用显微镜观察时，两眼都要同时睁开．我们是习惯用右手写字，所以左眼注视目镜观察物像，右眼睁开看着画图及记录．但有不少同学往往做不到这一点，喜欢用右眼睁开、左眼闭或左眼睁开、右眼闭，这是不符合实验的观察要求的，这种不良习惯会造成左眼疲劳，同时也不能做到边观察边画图．可见题中的叙述是错误的。故答案为：×
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| Mrs smith's Class This is Mrs Smith's classroom. It is Class Two, Grade Two of No. 14 Middle School. Mrs Smith usually 1 in front of the blackboard. She often 2 to her students and sometimes writes 3 the blackboard. Her class is quite big. There are 4 students in her class. Some of them are not Chinese, 5 they are all good friends. Li Lei and Jim are not tall. They sit in the 6 row. Wei Hua and Hua Fei 7 in the second row. The twins sit 8 the middle of the classroom. Bill is 9 than most of the class. He sits in the back row. Lin Tao is on the right hand side. Li Ming sits 10 the left hand side. |
| ( )1. A. sings ( )2. A. reads ( )3. A. to ( )4. A. much ( )5. A. and ( )6. A. right ( )7. A. sits ( )8. A. on ( )9. A. taller ( )10. A. beside | B. sits B. talk B. in B. a few B. but B. middle B. sit B. of B. shorter B. near | C. walks C. phones C. on C. some C. or C. front C. stand C. in C. tallest C. inside | D. stands D. smile D. at D. a lot of D. yet D. back D. go D. at D. higher D. on |