Question

【題目】

Lab work is fun but you must be careful. Listen carefully when your teacher reads and explains（解釋）the rules before your first lab lesson.

LAB RULES
Throughout the lessons	Do not enter the science lab without the teacher's permission(允許）. No food or drinks are allowed in science lab.
Before the experiment	Read all instructions carefully before every experiment. Prepare all apparatuses (儀器)and put them in right places so that you will not knock them over while doing the experiment.
During the experiment	If you are unsure how to use the apparatuses or how to operate（操 作）, ask your teacher for help. Never smell or taste chemicals（化學(xué)藥品）unless（除非）your teacher gives permissions.
After the experiment	Throw waste materials into proper waste baskets Wash all apparatuses after use and return them to the places where they were. Never smell or taste chemicals（化學(xué)藥品）unless（除非）your teacher gives permissions.
First Aid	Report all accidents to your teacher immediately. If you spill any chemicals onto your body or clothing, wash with plenty of water and report to your teacher.

【1】You must know the LAB RULES ____________ the first lab lesson.

A.beforeB.sinceC.duringD.after

【2】It is necessary for you to __________ before every experiment.

A.read all instructions carefullyB.take enough food and drinks

C.smell chemicals immediatelyD.talk with your classmates

【3】If you are not: sure how to use the apparatuses, __________________.

A.read the rules carefullyB.try them again and again

C.ask your teacher for helpD.return all apparatuses to the places where they were

【4】The underlined word "spill" means ___________________.

A.take care ofB.run out ofC.fall offD.pour out in drips

【5】You should put the waste materials into the ____________.

A.packetB.paper bagC.binD.waste baskets

【6】When you are in the science lab, you mustn't _______________________.

A.be careful in order to prevent injury

B.listen carefully when your teacher explains the rules

C.taste chemicals without the teacher's permission

D.throw waste materials into proper waste baskets

Answer 1

【答案】

【1】A

【2】A

【3】C

【4】D

【5】D

【6】C

【解析】

本文是實驗室的規(guī)章制度。

【1】細(xì)節(jié)題。根據(jù)第1段第2句“Listen carefully when your teacher reads and explains（解釋）the rules before your first lab lesson.”可知在上第一節(jié)實驗課之前你必須知道實驗規(guī)則。故選A。

【2】細(xì)節(jié)題。根據(jù)實驗室規(guī)則第2項（Before the experiment）第1句“Read all instructions carefully before every experiment.”可知“每次實驗前，你必須仔細(xì)閱讀所有的說明。”故選A。

【3】細(xì)節(jié)題。根據(jù)實驗室規(guī)則第3項（During the experiment）第1句“If you are unsure how to use the apparatuses or how to operate（操作）, ask your teacher for help.”可知“如果你不知道如何使用這些儀器，請向你的老師求助”，故選C。

【4】詞義猜測題。take care of照顧，照看；run out of用光，耗盡；fall off 脫落，掉落；pour out in drips一滴一滴地倒出來，灑。此句“If you spill any chemicals onto your body or clothing, wash with plenty of water and report to your teacher.”句意是：如果你把化學(xué)物質(zhì)灑在身上或衣服上，用大量的水清洗并向老師報告。根據(jù)句意可知"spill"意思是“灑，濺出，潑出”，故選D。

【5】細(xì)節(jié)題。根據(jù)實驗室規(guī)則第4項（After the experiment）第1句“Throw waste materials into proper waste baskets”可知你應(yīng)該把廢料放進(jìn)垃圾桶里。故選D。

【6】細(xì)節(jié)題。根據(jù)實驗室規(guī)則第3項（During the experiment）第2句“Never smell or taste chemicals（化學(xué)藥品）unless（除非）your teacher gives permissions.”可知當(dāng)你在科學(xué)實驗室時，未經(jīng)老師允許，你不能嘗化學(xué)藥品。故選C。