Unit 4  Astronomy: the science of the stars導(dǎo)學(xué)案

1. to begin with = to start with 以……開始；由……作為開頭；首先 [典例] to begin/start with, i couldn’ t understand a single word. 起初，我一句也沒弄明白。 [重點(diǎn)用法] begin/start with 從……開始             begin/start sth with 從……開始…… [練習(xí)] 根據(jù)句子的意思完成句子。 1). he ______ his speech ______ a poem.    2). his speech ______ ______ a poem. 3). ______ ______ ______, pets are good friends of many lonely people, especially the old. keys: 1). began/started; with    2). began/started with      3). to start/begin with      2. in time 及時(shí)；最終；遲早 [典例] 1). they caught the bus in time. 他們及時(shí)趕上了汽車。 2). if you keep on, you will succeed in time. 如果堅(jiān)持下去，你們總有一天會(huì)成功的。 [短語歸納] time短語： in time for sth./ to do sth. 及時(shí)；不遲              in no time 立刻；馬上                 at no time永不……     at one time 有個(gè)時(shí)期；曾經(jīng)；一度                 at a time 一次；每次          at times = sometimes 有時(shí) all the time 一直；始終；老是                        on time 按時(shí)；準(zhǔn)時(shí)                    by the time到……的時(shí)候?yàn)橹?for the time being 暫時(shí)；暫且                         take one’ s time不著急；慢慢來 kill time 消磨時(shí)間 from time to time 不時(shí)地，間或                      many a time 常常；多次             once upon a time 從前 at the same time 同時(shí)；盡管如此                    ahead of time 提前，提早            race against time 爭分奪秒 time and again 一次又一次；重復(fù)地                keep time (鐘表)走得準(zhǔn)               keep bad time（鐘、表）走得不準(zhǔn) take one’ s time 慢慢來，別急                        have a good/nice/hard time (in) doing sth 做某事很……    it’ s (high/about) time that sb. did/ should do sth. 是做某事的時(shí)候了                    [練習(xí)] 用time短語填空。 1). they sent the mail to me just _______ _______, before i 1eft. 2). william arrived at the theatre just _______ _______ for the play was to be on. 3). hurry up! the concert will begin _______ _______ _______. 4). _______ _______ _______ will i give up.  5). the boy laughed and cried _______ _______ ______ ______. 6). _______ _______ _______ he was addicted to playing web games, but now he devotes himself to writing, which delights his parents. 7). don’t try to do everything at once; take it a bit _______ _______ _______. 8). you’ll have your own office soon, but _______ _______ _______ _______ you’ ll have to share one with me. keys: 1). in time          2). in time        3). in no time       4). at no time     5). at the same time   6). at one time    7). at a time        8). for the time being   3. in one’ s turn 輪到某人；接著   [典例] i will see you, each in your turn. 我將要一個(gè)接著一個(gè)地看你。 [短語歸納] turn短語： in turn輪流；一個(gè)接著一個(gè)                             by turns輪流；一陣……一陣……  take turns (to do sth.)輪流（做某物）              it’s one’s turn to do sth. 輪到某人做某事了 [練習(xí)] 用turn短語填空或翻譯句子。 1). she went hot and cold _______ _______. 2). 我們輪流著開車。 ____________________________________________________________________________________