问题 选择题

下列有关光学元件的说法中,正确的是(  )

A.物体经小孔成的像是正立的、缩小的实像

B.当我们逐渐靠近穿衣镜时,镜中的像也逐渐变大

C.清澈的河底,看起来变浅了是由于光的折射现象

D.有的同学不注意保护眼睛,形成近视眼后需要戴凸透镜矫正

答案

答案:C

A.物体经小孔成的像是倒立的的实像,由于物体和小孔之间的距离没有确定,所以不能确定是缩小还是放大,还是等大,错误;B.当我们逐渐靠近穿衣镜时,根据平面镜成像特点可知镜中的像不变; C.清澈的河底,看起来变浅了是由于光的折射现象,正确;D.有的同学不注意保护眼睛,形成近视眼后需要戴凹透镜矫正,错误。

单项选择题
填空题

One is never at a loss for a place to (1) in Malaysia.The country’s cities and major towns have a (2) range of accommodation to suit all tastes and budgets. Most international- (3) hotels cater to total living requirements and as such, one (4) easily find restaurants, entertainment outlets and fitness centres within the (5) complex.
Several resort hotels even have adjoining golf courses and (6) parks with special privileges accorded to hotel guests. Family outings (7) these hotels can be a practical yet fun-filled activity. Guests (8) on longer stays may appreciate the serviced apartments situated within (9) major cities.
Malaysia is also an excellent destination for romantic getaways, (10) for honeymooners seeking an idyllic tropical retreat with (11) amenities. The country’s award-winning island resorts are paradises waiting to be (12) .
For budget-conscious tourists, there is an array of accommodations located (13) to amenities and tourist attractions. Budget accommodations in Malaysia are (14) according to the Orchid Classification Scheme and include hostels, bed (15) breakfast establishments, inns, boarding houses, rest houses and lodging houses. (16) Orchid rating is awarded to tourist accommodations offering basic facilities (17) well as safe and clean premises.
Adventurous souls can try (18) the innumerable value-for-money kampung-style chalets located along popular beaches. Nature (19) seeking communion with nature in Malaysia’s world-famous nature parks such (20) Taman Negara will be amazed by the easy availability of chalets with modern facilities in these areas.